May 2025 2024 Heat-Related Deaths Report Maricopa County Department of Public Health Division of Epidemiology and Informatics Table of Contents Acknowledgements 3 Overview 4 Introduction 5 Heat-Related Deaths Over Time Deaths by Year 6 Extreme Heat 8 Demographics Age, Sex, Race, and Ethnicity 9 Residency 10 Circumstances of Death Map: Injury Location 11 Place of Injury 12 Living Situation 14 Substance Use 15 Comorbidities 17 Appendices Methodology 18 Tables 21 Maricopa County • Department of Public Health • Epidemiology & Informatics Acknowledgements The Maricopa County Department of Public Health (MCDPH), Division of Epidemiology, and Informatics would like to thank the following agencies for their contributions to this report: ➢Maricopa County Office of the Medical Examiner (OME) ➢Maricopa County Office of Vital Registration (OVR) ➢Arizona Department of Health Services (ADHS), Office of Vital Registration ➢National Weather Service (NWS) ➢Maricopa Association of Governments (MAG) ➢Local hospitals (infection preventionists, emergency departments, social worker staff) For all media inquiries, please contact phpio@maricopa.gov To receive additional data, please submit a data request form through the Maricopa County Public Health website here. A staff member from the Climate and Health Epidemiology team will contact you to discuss your request. Authors: Melanie Rubio, Meaghan Batchelor, Aaron Gettel Maricopa County • Department of Public Health • Epidemiology & Informatics 3 2024 Heat-Related Deaths Overview 645 608 Heat-related deaths occurred in Maricopa County during 2024. As of 3/31/25, 2 cases remain under investigation. 61 84 2014 2015 425 154 179 182 199 2016 2017 2018 2019 More than 3 out of 4 heat-related deaths were male. 76% 608 323 339 2020 2021 2022 2023 2024 Approximately 60% of heat-related deaths were among those age 50 or older. More than 3 out of 4 heat-related deaths had an injury location outside. of heat-related deaths were among Maricopa County residents. 43% 57% Fifty-seven percent of heat-related deaths involved substances in 2024. 49% of heat-related deaths were among people experiencing homelessness. 45% of heat-related deaths had a medical history of cardiovascular disease. 51% of heat-related deaths occurred on a day when the heat risk level was moderate. Introduction Mortality from environmental heat is a significant public health problem in Maricopa County, and all heat-related deaths are preventable. Sharing this information helps community partners design interventions to prevent heat-related deaths among vulnerable populations. TIMELINE OF HEAT SURVEILLANCE IN MARICOPA COUNTY Maricopa County Department of Public Health (MCDPH) has conducted heat surveillance each year since 2006. The enhanced heat surveillance season usually begins in May and ends in October. 2006 2012 2024 MCDPH begins conducting heat surveillance MCDPH incorporates data on air conditioning and energy use HEAT DEATHS CLASSIFICATION Heat-related deaths are now classified as heat-caused or heat-contributed: MCDPH modernizes heat surveillance to improve data quality and publishes an interactive weekly heat report dashboard HEAT SURVEILLANCE DATA SOURCES Maricopa County uses two main sources of data for heat surveillance: Heat-Caused Environmental heat was directly involved in the sequence of events causing deaths. Preliminary Reports of Death (PRODs) From the Office of the Medical Examiner Heat-Contributed Environmental heat contributed to the deaths but was not in the sequence of events causing deaths. Death Certificates From the MCDPH Office of Vital Registration HEAT SURVEILLANCE OBJECTIVES The main goals of heat surveillance are to identify the demographic characteristics of heat-related deaths (e.g., age and gender) and the risk factors for mortality (e.g., homelessness or lack of air conditioning). For more information on how heat-related deaths are classified, see the definitions in the Appendix. Maricopa County • Department of Public Health • Epidemiology & Informatics 5 Heat-Related Deaths Over Time As of 3/31/2025, Maricopa County identified a total of 608 heat-related deaths occurring in 2024. This shows the first year-over-year decrease in heat-related deaths observed in Maricopa County since 2014. 2* 645 608 425 61 84 2014 2015 154 179 182 199 2016 2017 2018 2019 323 339 2020 2021 2022 2023 2024 *As of 3/31/2025, two cases remain under investigation In 2024, 62% of all heat-related deaths were heat-caused. This means environmental heat was directly involved in the cause of death in these cases, rather than only a contributing factor. 41% 38% 44% 34% 43% 50% 35% 31% 46% 54% 46% 54% 57% 50% 65% 69% 2014 2015 2016 2017 2018 2019 Heat-Caused 43% 66% 57% 2020 2021 59% 62% 2023 2024 56% 2022 Heat-Contributed Maricopa County • Department of Public Health • Epidemiology & Informatics 6 Heat-Related Deaths Over Time In 2024, 46% of all heat-related deaths occurred in July, a decrease from 2023, when 64% of heat-related deaths occurred in July. In 2024, 39% of heat-related deaths occurred during an excessive heat warning, a decrease from 2023, when 72% of deaths occurred during an excessive heat warning. The National Weather Service (NWS) issued 9 excessive heat warnings for a total of 45 days in 2024. For more information on extreme temperatures in Phoenix, please visit https://www.weather.gov/psr/heat. 2020 52% 2021 28% 2022 25% 2023 2024 72% 39% Maricopa County • Department of Public Health • Epidemiology & Informatics 7 Extreme Heat in 2024 From 6/18/24 to 7/31/24, a heat-related death occurred every day in Maricopa County. During this 44-day streak, 355 heat-related deaths occurred, there were 14 excessive heat warning days issued, and 14 high temperature records were broken. 25 140 120 20 15 80 60 10 Temperature (°F) Heat-Related Deaths 100 40 5 20 0 0 4/1/2024 5/1/2024 6/1/2024 Excessive Heat Warning 7/1/2024 8/1/2024 9/1/2024 10/1/2024 Maximum Temperature Minimum Temperature Over half of all heat-related deaths in 2024 occurred on days when heat risk was calculated as moderate. There were 19 days in 2024 when the National Weather Service calculated an extreme heat risk. 4% None Minor Moderate Major Extreme No risk Risk to those extremely sensitive to heat Risk to those sensitive to heat Risk to most people Risk to everyone 51% Maricopa County • Department of Public Health • Epidemiology & Informatics 24% 21% 8 Demographics Overview Seventy-eight percent of heat-related deaths78% were among males in 2024. Male Female 22% Male 22% 78% Female Approximately 60% of all heat-related deaths occurred among persons aged 50 years or older. 28% 27% 18% 14% 12% 0% 1% 0-4 5-19 20-34 35-49 50-64 65-74 75+ Nearly 60% of heat-related deaths occurred among non-Hispanic White persons. Compared to the proportion in which they make up Maricopa County’s total population, African Americans (5.5%) and American Indians (1.3%), are overrepresented among heat deaths. White (non-Hispanic) 56% Hispanic or Latino 22% Black or African American (non-Hispanic) 15% American Indian or Alaska Native (nonHispanic) Asian or Pacific Islander (non-Hispanic) 6% 1% Population rates found at the United States Census Maricopa County • Department of Public Health • Epidemiology & Informatics 9 2024 Heat-Related Deaths Residency The majority of heat-related deaths in Maricopa County were among Maricopa County residents. 76.3% Maricopa County Residents 9.9% In-State Residents Includes residents of nine other Arizona counties 5.9% Out-of-State Residents Includes residents of 23 other states 7.9% Residency Unknown Includes 48 cases where residency state, county, or both are unknown 76.3% Among Maricopa County residents whose length of residency is known, 72% of the decedents had resided in Maricopa County for twenty years or more. The longest residency was 85 years in 2024. * Excludes 122 cases where the length of stay in AZ is unknown. 10-19 years <3 years 6% 10% 10% 11% 11% 72% >20 years 3-9 years Maricopa County residents who lived in Arizona for 20 years or more had a similar rate of outdoor heat-related deaths as those who lived in the state for less than 20 years. 20+ years in AZ 27% 73% < 20 years in AZ 30% 70% 0% Indoor Outdoor Maricopa County • Department of Public Health • Epidemiology & Informatics 10 Locations of Heat-Related Deaths Avondale Chandler El Mirage Glendale Goodyear Mesa Heat-Related Deaths by City of Injury* 6 Peoria 8 Phoenix 5 Scottsdale 25 Surprise 6 Tempe 55 Unincorporated Maricopa County** 10 337 5 6 27 51 *Cities with fewer than 5 deaths have been excluded. **Cities and communities include Arlington, Fort McDowell, Gila Bend, Laveen, Litchfield Park, Sun City, Sun City West, Sun Lakes, Tonopah, Waddell, Wittmann Heat Related Deaths by Injury Zip Code To view an interactive map of 2024 heat-related deaths in Maricopa County, click on the QR code on the map or scan it with your smartphone camera. Heat Related Deaths by Injury Zip Code Maricopa County • Department of Public Health • Epidemiology & Informatics Qr code AI-generated content may be incorrect. 11 Heat-Related Deaths Place of Injury Heat-related deaths in outdoor settings continue to drive the total number of deaths. In 2024, 77% of heat-related deaths occurred outdoors. 645 608 425 323 Indoor Outdoor 182 199 61% 60% 72% 76% 39% 40% 28% 24% 2016 2017 2018 2019 154 84 61 179 72% 61% 2014 2015 85% 75% 339 77% 80% 75% 15% 25% 20% 2020 2021 2022 25% 23% 2023 2024 In 2024, 52% of outdoor heat-related deaths occurred among individuals aged 50 years or older, while the same age group represented 89% of indoor heat-related deaths. Indoor Outdoor 89% 50+ years 11% <50 48% <50 52% 50+ years 34% Outdoor Heat-Related Deaths Most (66%) outdoor heat-related deaths occurred in an urban area in 2024. Residence Outdoor Heat Injury Sites: Car Urban Area (66%) Residence (10%) Car(8%) Urban Area Desert Area Park Other Maricopa County • Department of Public Health • Epidemiology & Informatics Desert Area (8%) Park (4%) Other/Unknown (2%) 12 Indoor Heat-Related Deaths Apartment/Condo/ Townhome Approximately 25% of indoor heat-related deaths in 2024 occurred in a RV/trailer or mobile home; however, only 5% of housing structures in Maricopa County are RV/trailer or mobile homes. House Indoor Heat Injury Sites: House (62%) RV/Trailer Apartment/Condo/ Townhome (16%) RV/Trailer(14%) Mobile Home (8%) Mobile Home Data on housing structures found at American Housing Survey Sixty-eight percent of all indoor heat-related deaths were discovered during a welfare check (that is, when a neighbor, family member, or emergency medical services (EMS) is called to check on someone). Among indoor heat-related deaths, an air-conditioning (AC) unit was present in 88% of cases. Among deaths where an AC unit was present, the unit was not functioning in 70% of cases. Indoor Deaths: 138 Not Functioning (70% ) AC Present (88% ) Not in Use (18%) No AC Present (11%) Unknown (1%) Maricopa County • Department of Public Health • Epidemiology & Informatics No Electricity (9%) Unknown (3%) 13 Living Situation Among Heat-Related Deaths People experiencing homelessness (PEH) in Maricopa County made up the largest proportion (49%) of heat-related deaths in 2024 compared to any other living situation. 5% Unknown (Non-Homeless) 5% 9% Unknown 9% Cohabiting 15% Cohabiting 15% Living Independently 22% Living Independently 22% Homeless 49% While the overall number of heat-related deaths has decreased in Maricopa County in 2024, there was an increase in the proportion of heat-related deaths among people experiencing homelessness. 645 608 425 323 Unknown PEH Not PEH 61 2014 84 2015 154 35% 179 32% 182 199 34% 33% 53% 57% 62% 51% 43% 36% 2016 2017 2018 2019 2020 Maricopa County • Department of Public Health • Epidemiology & Informatics 45% 49% 42% 42% 2023 2024 339 38% 42% 52% 33% 2021 2022 14 Heat-Related Deaths Involving Substances In 2024, Maricopa County identified 349 deaths involving substance use, accounting for 57% of all heat-related deaths*. 44% No Substances Substances 50% 43% 43% 52% 50% 48% 2020 2021 56% 57% 2023 2024 57% 2022 In 2024, heat-related deaths involving substances were matched with toxicology data to identify deaths that involved heat and substance use (overdose/alcohol poisoning) over the past five years. Among heat-related deaths involving substances, nearly all (89%) involved stimulants in 2024. Not Stimulants/Unknown Stimulants 80% 84% 2020 2021 88% 89% 2023 2024 86% 2022 *In 2024, heat-related deaths involving substances were identified as heat-related deaths where any cause of death field also included an International Classification of Diseases, 10th Revision (ICD-10) code pertaining to a drug overdose (X40-X44; X60-X64; X85; and Y10-Y14) or to an acute alcohol poisoning (X45, X65, and Y15). Prior reports classified a heat-related death as substance-involved if any of the cause-ofdeath fields within the death certificate mentioned drug or alcohol use. Data on substance-use involved heat deaths should not be compared to data from previous years reports. Maricopa County • Department of Public Health • Epidemiology & Informatics 15 Heat-Related Deaths Involving Substances Less than half (44%) of heat-related deaths involving substances involved opioids in 2024. Not Opioids/Unknown 43% Opioids 56% 54% 76% 65% 24% 35% 2020 2021 57% 46% 2022 2023 44% 2024 In 2024, heat-related deaths involving substances were identified as heat-related deaths where any cause of death field also included an International Classification of Diseases, 10th Revision (ICD-10) code pertaining to a drug overdose (X40-X44; X60-X64; X85; and Y10-Y14) or to an acute alcohol poisoning (X45, X65, and Y15). Prior reports classified a heat-related death as substance-involved if any of the cause-ofdeath fields within the death certificate mentioned drug or alcohol use. Data on substance-use involved heat deaths should not be compared to data from previous years reports. Maricopa County • Department of Public Health • Epidemiology & Informatics 16 Heat-Related Deaths Co-morbidities Certain health conditions may put individuals at increased risk of heat-related illness. In 2024, cardiopulmonary disease contributed to the cause of death in 46% of heat-related deaths. Obesity, diabetes, kidney disease, and injuries or falls were also prevalent. Dementia 2% Obesity 6% Injury 3% Diabetes 9% Cardiopulmonary disease 45% • Kidney disease 3% • • • • • May June July August September In 2024, at least 1 out of 4 heat-related deaths had a medical history of mental illness. In addition, approximately 25% of heat related deaths had a history of some type of physical health condition. 8% Mental Health Conditions 15% Unknown 58% Both 13% of heat-related deaths had a documented history of schizophrenia. Physical Health Conditions 13% Maricopa County • Department of Public Health • Epidemiology & Informatics 17 Methodology Surveillance data are obtained from the following sources: 1. The Maricopa County Office of the Medical Examiner (OME) forwards suspected heatrelated deaths to MCDPH and provides data, including demographics, preliminary information regarding how the death occurred, and the circumstances of death. In the past, this information came solely as a weekly line list with limited information for each case. However, in February 2012, MCDPH started receiving all preliminary reports of death (PRODs) from the OME. These reports provide expanded information daily and have changed the screening methods used by MCDPH staff to ensure that all potential heat-related deaths are documented. 2. The MCDPH Office of Vital Registration registers all Maricopa County death certificates in the Arizona Department of Health Services vital records database. The MCDPH Division of Epidemiology & Informatics searches this database for causes of death associated with environmental heat. A Statistical Analysis Software (SAS©) program identifies the key phrases and International Classification of Disease, Tenth Revision (ICD-10) codes listed below. 3. Hospital and media reports can sometimes initiate a heat death investigation (for example, if a child is reportedly left in a hot car). Key Phrases: Heat exposure • Environ • Exhaustion • Sun • Heat Stress • Heat Stroke • Hyperthermia ICD-10 Codes: X30: Exposure to excessive natural heat T67.X: Effects of heat and light P810: Environmental hyperthermia of newborn Once data are received, analysis of the information is required to identify only those deaths related to or caused by environmental heat. Environmental heat is heat generated by the climate (e.g., sun or humidity) rather than heat from man-made sources (e.g., ovens or manufacturing equipment). Heat-related deaths are categorized based on the classification criteria listed below: Heat-caused deaths are those in which environmental heat was directly involved in the sequence of conditions causing deaths. These are deaths where environmental heat terms were indicated in Part I1 of the death certificate causes of death (diseases or conditions in the direct sequence causing death), for cause of death variables (cod_a, cod_b, cod_c, or cod_d). County of death: Maricopa. Heat-contributed deaths are those in which environmental heat contributed to the deaths but was not in the sequence of conditions causing these deaths. These are cases where environmental heat terms were mentioned in Part II2 of the death certificate causes of death (diseases and conditions contributing but not directly resulting in the death sequence), but not in any of the Part I death variables (cod_a, cod_b, cod_c, or cod_d). County of death: Maricopa. Maricopa County • Department of Public Health • Epidemiology & Informatics 18 For the purposes of this report, heat-caused and heat-contributed deaths are combined and referred to as “heat-related deaths.” Please note that most jurisdictions report only heatcaused deaths. This should be considered when comparing Maricopa County data with data from other locations. Death certificate data, in combination with the OME notes, are used to produce this report. Total case counts, demographics, residency, drug/alcohol use, comorbidities, and years lived in Arizona, are directly retrieved from death certificate data. Place of death location, indoor/outdoor occurrence, air conditioning use, medical history, injury details, and homelessness, are captured from explicit notations made in the death certificate and/or OME notes. For the purposes of this report, reasons for not having a cooled environment at the time of death in indoor cases where an A/C unit was present were grouped into three categories: nonfunctioning, functioning but turned off, and no electricity. “Non-functioning” is defined as an A/C unit that was not operating properly, was broken, or could not be turned on despite the presence of electricity. Cases categorized as having a “functioning but turned off” A/C unit indicate that the unit worked properly, but the A/C was turned off for some reason at the time of the OME scene inspection. In cases where the unit could not be turned on due to a lack of electricity, regardless of whether it was functioning or nonfunctioning, were counted in the “no electricity” category. Homelessness is defined as having an address on the death certificate that matches a homeless shelter, government agency, business, or intersection. Cases are also classified as homeless if there is an indication on the death certificate. If the address is listed as unknown on the death certificate, then an examination of the Medical Examiner’s notes is made. The Medical Examiner determines if someone is homeless by speaking to next of kin, law enforcement, and reviewing medical records. If the address is listed as out of jurisdiction, then time spent in Arizona, as provided by the death certificate, is taken into consideration. Substance-involved deaths heat deaths are defined as deaths where any cause of death field on the death certificate had an International Classification of Diseases, 10th Revision (ICD-10) code pertaining to drug overdose (X40-X44; X60-X64; X85; and Y10-Y14) or to an acute alcohol poisoning (X45, X65, and Y15). In addition, deaths in Maricopa County which are potentially due to unnatural, violent, or suspicious causes are investigated by the Maricopa County Office of the Medical Examiner (OME), during which postmortem examinations and laboratory testing are performed. MCDPH matched death certificate death data for substance-involved deaths to OME toxicology data to monitor specific drug patterns among substance-involved deaths that occurred within Maricopa County. Information on specific drug types reflects those that were involved in these deaths. Not all drugs involved in the death necessarily played a causal role. Some deaths may not have toxicology results. Maricopa County • Department of Public Health • Epidemiology & Informatics 19 City counts are determined by using injury addresses from death records, which are then geocoded using ArcGIS Pro. Geocoding helps standardize the location of each incident, which is important since geographic boundaries (like ZIP codes or census tracts) can change over time. It also improves accuracy by correcting any location information that may be incorrect or outdated on the death certificate. For example, a death certificate might list ZIP code 85012, but geocoding the full street address may reveal that the actual location falls within ZIP code 85014. Addresses with a match score above 85% were accepted automatically; those below that threshold were flagged for manual review and verification. During 2020–2024, an average of 7% of cases could not be geocoded due to incomplete or missing injury address information. Once classification is completed, the data are summarized for the production and dissemination of reports. Reports are generated weekly during the season and posted to the MCDPH website, which can be found at: www.heataz.org. 1 Part I of the death certificate: cod a – is the immediate cause (final disease or condition resulting in death). cod b, cod c, and cod d – are sequentially listed conditions leading to the cause listed on cod a. 2 Part II of the death certificate: Other significant conditions contributing to death but not resulting in the underlying cause given in Part I. To receive additional data, please submit a data request form through the Maricopa County Public Health website here. A staff member from the Climate and Health team will contact you to discuss your request. For all media inquiries, please contact phpio@maricopa.gov Maricopa County • Department of Public Health • Epidemiology & Informatics 20 Heat-Related Deaths by Year 2020 2021 2022 Total Deaths 323 339 425 Heat-caused 213 194 240 Heat-contributed 110 145 185 During Excessive Heat Warning* 167 95 107 Heat-Related Deaths by Injury Location Indoor 46 82 86 Outdoor 271 252 336 Unknown 6 5 3 Heat-Related Deaths by Living Situation People Experiencing Homelessness 172 130 178 Housed** 116 177 142 Unknown 35 32 105 Substance Use Involvement among Heat-Related Deaths Involved substances 160 163 241 Opioids 39 57 112 Not opioids/unknown 121 106 129 Stimulants 128 137 207 Not stimulants/unknown 32 26 34 No substances 163 176 184 Heat-Related Deaths by Residence of Maricopa County Resident 273 267 329 Not resident 41 44 55 Unknown 9 28 41 2023 645 378 267 457 2024 608 376 232 237 156 480 9 138 467 3 291 273 81 299 257 52 363 207 156 321 42 283 349 153 196 309 40 259 510 75 60 464 96 48 *Excessive Heat Warning: See dates at: https://www.weather.gov/psr/Heat **Living Independently or cohabiting 2024 Heat-Related Deaths by National Weather Service Heat Risk Category Heat Risk Description Days Deaths None No risk 128 1 Minor Risk to those extremely sensitive to heat 103 23 Moderate Risk to those sensitive to heat 82 309 Major Risk to most people 34 148 Extreme Risk to everyone 19 127 2024 Heat-Related Deaths by Place of Injury Outdoor Heat-Related Deaths 467 138 Indoor Heat-Related Deaths Recreational Activity 18 0 Recreational Activity Welfare Check 54 93 Welfare Check Urban Area 306 72 House/Townhouse Residence 47 25 Apartment/Condo Car 40 22 RV/Trailer Place of Injury Place of Injury Desert Area 39 14 Mobile Home Park 18 5 Other/Unknown Other/Unknown 17 Maricopa County • Department of Public Health • Epidemiology & Informatics 21 Deaths 608 Female 131 Male 477 73 168 165 110 84 12 27 25 35 30 61 141 140 75 54 39 80 227 62 28 40 15 117 6 11 41 17 14 17 8 17 33 69 186 45 14 23 7 100 Hispanic/Latino 134 Black/African American (non-Hispanic) 88 American Indian/Alaska Native (non-Hispanic) 35 Asian or Pacific Islander (non-Hispanic) 7 White (Non-Hispanic) 341 Unknown/Other/Refused 3 Residency Maricopa County Residents 464 In-State Residents 60 Out-of-State Residents 36 Residency Unknown 48 Length of Residency in Maricopa County < 3 years 24 3-9 years 38 10-19 years 42 20+ years 270 23 16 111 72 Heat-Related Deaths 2024 Demographics Age group* 20-34 years 35-49 years 50-64 years 65-74 years 75+ years Education 8th grade or less Some High School High School Diploma or GED Some College Associates Bachelors Masters or higher Not Classifiable/Unknown Race/Ethnicity ** ** 84 257 ** 102 12 7 10 362 48 29 38 ** 7 12 60 27 28 206 2024 Heat-Related Deaths: Comorbidities/Medical History Cause of Death Comorbidities Deaths Medical History Deaths Cardiovascular Disease 227 Physical Health Conditions Obesity 94 Mental Health Conditions Endocrine Disease 75 Both Poor Fluid Intake 57 Unknown 81 91 82 354 Psychosis 55 * Cases with an age less than 20 are not shown. **Unknowns and values with <5 have been excluded. Maricopa County • Department of Public Health • Epidemiology & Informatics 23 2024 Maricopa County Resident Heat-Related Death Rates Deaths Population Rate per 100,000 Total 464 4,491,987 10.3 Sex Male 362 2,233,573 16.2 Female 102 2,258,414 4.5 Age Group 0-4 years * 5-19 years * 20-34 years 52 950,104 5.5 35-49 years 120 874,213 13.7 50-64 years 117 806,908 14.5 65-74 years 94 415,287 22.6 75+ years 75 302,792 24.8 Race/Ethnicity American Indian or Alaska Native 19 60,061 31.6 (non-Hispanic) Asian or Pacific Islander (non-Hispanic) 5 200,516 2.5 Black or African American 70 246,536 28.4 (non-Hispanic) Hispanic or Latino 112 1,387,720 8.1 Unknown/Other * White (non-Hispanic) 256 2,397,465 10.7 * Groups with <5 have been excluded 2024 Maricopa County Resident Heat-Related Death Rates (Age and Sex) Deaths Population Rate per 100,000 Age Group Male Female Male Female Male Female 0-4 years * 5-19 years * 20-34 years 44 8 484,581 465,523 9.1 1.7 35-49 years 105 15 440,528 433,685 23.8 3.5 50-64 years 96 21 397,844 409,064 24.1 5.1 65-74 years 64 30 192,682 222,605 33.2 13.5 75+ years 49 27 133,276 169,516 36.8 15.9 Population estimates found at: https://data.census.gov/table/ACSDP5Y2023.DP05?g=050XX00US04013 and https://data.census.gov/table/ACSST5Y2023.S0101?g=050XX00US04013 *Groups with <5 have been excluded Maricopa County • Department of Public Health • Epidemiology & Informatics 23 Maricopa County Department of Public Health Division of Epidemiology & Informatics Maricopa.gov/PublicHealth