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Comanche County, Oklahoma: environmental and disease records

Cancer mortality in Comanche County is 167 deaths per 100,000 people per year against a U.S. rate of 143.2, a statistically significant excess. The strongest disease signals are Kidney & renal pelvis deaths at 1.6 times the U.S. rate and Lung & bronchus deaths at 1.4 times the U.S. rate. Federal databases place 330 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (124), Air permit holder (minor source) (80), Brownfield property (34). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 30 in a million, driven mainly by formaldehyde.

Rates are age-adjusted per 100,000 people. A cancer signal is marked significant when the lower bound of its 95 percent confidence interval is above the U.S. rate. Facility counts use active federal records located inside the county boundary. Approximate county center: 34.6449, -98.4841.

How this county ranks in Oklahoma

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Cancer deaths and new cases versus the United States

Source: NCI and CDC State Cancer Profiles, both sexes, all ages. Sorted by the ratio of the county rate to the U.S. rate.

Cancer rates for Comanche County compared with the United States
CancerMeasureCounty rateU.S. rateTimes U.S.95% intervalYears
Kidney & renal pelvisDeaths5.53.41.62xSignificant3.8 to 7.82020-2024
EsophagusNew cases6.74.61.46xSignificant4.7 to 9.12019-2023
Lung & bronchusDeaths42.230.21.4xSignificant37.3 to 47.52020-2024
Non-Hodgkin lymphomaDeaths64.81.25x4.1 to 8.32020-2024
Liver & bile ductDeaths7.76.61.17x5.7 to 10.22020-2024
All cancerDeaths167143.21.17xSignificant156.9 to 177.52020-2024
Lung & bronchusNew cases6051.81.16xSignificant54.1 to 66.42019-2023
Kidney & renal pelvisNew cases20.717.91.16x17.2 to 24.72019-2023
Liver & bile ductNew cases108.71.15x7.7 to 12.72019-2023
BladderDeaths4.54.11.1x3 to 6.52020-2024
Melanoma of the skinNew cases26.123.81.1x22.1 to 30.52019-2023
StomachDeaths2.92.71.07x1.7 to 4.72020-2024
BladderNew cases19.418.71.04x16.1 to 23.32019-2023
LeukemiaDeaths5.95.71.04x4.1 to 8.12020-2024
PancreasNew cases14.313.91.03x11.4 to 17.62019-2023
PancreasDeaths11.611.31.03x9.1 to 14.62020-2024
All cancerNew cases444.4453.40.98x427.8 to 461.42019-2023
EsophagusDeaths3.63.70.97x2.2 to 5.42020-2024
Brain & nervous systemDeaths4.24.40.95x2.7 to 6.12020-2024
Brain & nervous systemNew cases5.66.20.9x3.9 to 7.82019-2023
StomachNew cases5.66.60.85x3.9 to 7.82019-2023
Non-Hodgkin lymphomaNew cases15.618.50.84x12.5 to 19.12019-2023
LeukemiaNew cases11.614.50.8x9.1 to 14.62019-2023
ThyroidNew cases9130.69x6.7 to 11.82019-2023

Mortality measures versus the U.S. county median

Source: County Health Rankings, built from CDC National Vital Statistics System death records. The comparison value is the median of all U.S. counties.

Mortality measures for Comanche County
MeasureCountyU.S. medianDifferenceUnit
Premature death11,410.49,842.6+16%years of life lost before age 75 per 100,000
Life expectancy73.275.3-3%years
Child mortality68.159.8+14%deaths under age 18 per 100,000
Infant mortality6.86.2+9%deaths under age 1 per 1,000 live births
Injury deaths92.796.9-4%deaths per 100,000
Drug overdose deaths26.528.6-7%deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 30 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

  • Formaldehyde18.28 per million
  • Carbon Tetrachloride2.84 per million
  • Acetaldehyde1.34 per million
  • Pahpom1.07 per million

EPA Air Quality Index 2025

Monitored on 358 days: 239 good, 4 unhealthy for sensitive groups or worse. Median AQI 44, peak 131.

Regulated facilities, sites and hazards by type

330 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

  • Rail grade crossing124
  • Air permit holder (minor source)80
  • Brownfield property34
  • Gas station (mapped facility)27
  • NPDES wastewater discharge permit19
  • Small hazardous waste generator6
  • Toxic chemical release facility (TRI)6
  • Public airport5
  • TRI reporting facility5
  • Major air pollution source4
  • Large greenhouse gas emitter4
  • EPA air quality monitor3
  • Commercial airport2
  • Large hazardous waste generator2
  • Wind power plant2
  • Wastewater plant (mapped facility)2
  • Auto repair or body shop (mapped facility)1
  • Dry cleaner (mapped facility)1
  • Heliport1
  • Landfill (mapped facility)1
  • Gas power plant1

Highest-severity records

The 25 records with the highest Envyrofax severity in the county, with the agency identifier to cite in a records request.

  1. U.S. Army - Fort Sill, Ok (Range Facility), Fort Sill

    Toxic chemical release facility (TRI). Chemicals: Copper, Dinitrotoluene (mixed isomers), Lead And Lead Compounds, Dibutyl phthalate and 2 more. Reports carcinogens. 800,730 lbs released over 5 years.

    TRI facility ID 73503SRMYFDIREC (U.S. EPA Toxics Release Inventory)

    Severity 9

  2. Goodyear Tire & Rubber Co, Lawton

    Toxic chemical release facility (TRI). Chemicals: Methyl isobutyl ketone, Zinc compounds, Polycyclic aromatic compounds, Cobalt compounds and 4 more. Reports carcinogens. 168,592 lbs released over 5 years.

    TRI facility ID 73505GDYRT1GOOD (U.S. EPA Toxics Release Inventory)

    Severity 8.5

  3. Georgia-Pacific Gypsum Llc, Fletcher

    Toxic chemical release facility (TRI). Chemicals: Formaldehyde, Lead compounds, Lead And Lead Compounds. Reports carcinogens. 82,589 lbs released over 5 years.

    TRI facility ID 73541TMPLNCOUNT (U.S. EPA Toxics Release Inventory)

    Severity 8.3

  4. Goodyear Lawton, Lawton

    TRI reporting facility.

    EPA FRS registry ID 110000454231 (U.S. EPA ECHO) Agency record

    Severity 6.6

  5. Us Army Installation Mgmt Command - Us / Fort Sill, Lawton

    TRI reporting facility.

    EPA FRS registry ID 110042086122 (U.S. EPA ECHO) Agency record

    Severity 6.5

  6. Georgia-Pacific Gypsum Llc - Fletcher Wall Board Operations, Fletcher

    TRI reporting facility.

    EPA FRS registry ID 110007385230 (U.S. EPA ECHO) Agency record

    Severity 6.4

  7. American Phoenix Inc, Lawton

    Toxic chemical release facility (TRI). Chemicals: Zinc compounds, Cobalt And Cobalt Compounds, Cobalt compounds. Reports carcinogens. 100 lbs released over 5 years.

    TRI facility ID 73505CHMCL5201S (U.S. EPA Toxics Release Inventory)

    Severity 6

  8. Lawton-Fort Sill Rgnl, Lawton

    Commercial airport. O.

    Record ID LAW (FAA / U.S. DOT)

    Severity 5

  9. LAWTON, Lawton

    EPA air quality monitor.

    Record ID 400310651 (U.S. EPA AirData)

    Severity 4.6

  10. American Phoenix Inc / American Phoenix Inc, Lawton

    TRI reporting facility.

    EPA FRS registry ID 110009435021 (U.S. EPA ECHO) Agency record

    Severity 4.6

  11. Republic Paperboard Co, Lawton

    Major air pollution source.

    EPA FRS registry ID 110001649690 (U.S. EPA ECHO) Agency record

    Severity 4.5

  12. Ergon Asphalt & Emulsions Inc. - Lawton, Lawton

    Toxic chemical release facility (TRI). Chemicals: Benzo[g,h,i]perylene, Polycyclic aromatic compounds. Reports carcinogens.

    TRI facility ID 7350WRGNSP931SW (U.S. EPA Toxics Release Inventory)

    Severity 4.5

  13. Goodyear Lawton, Lawton

    Major air pollution source.

    EPA FRS registry ID 110000454231 (U.S. EPA ECHO) Agency record

    Severity 4

  14. Dolese Bros Co / Richards Spur Quarry, Elgin

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110007385221 (U.S. EPA ECHO) Agency record

    Severity 4

  15. Ergon Asphalt And Emulsions Inc/Lawton Facility, Lawton

    TRI reporting facility.

    EPA FRS registry ID 110013866432 (U.S. EPA ECHO) Agency record

    Severity 4

  16. Georgia-Pacific Gypsum Llc - Fletcher Wall Board Operations, Fletcher

    Major air pollution source.

    EPA FRS registry ID 110007385230 (U.S. EPA ECHO) Agency record

    Severity 3.8

  17. Lawton, City Of, Lawton

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110022636717 (U.S. EPA ECHO) Agency record

    Severity 3.8

  18. Goodyear Lawton, Lawton

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110000454231 (U.S. EPA ECHO) Agency record

    Severity 3.5

  19. Pso Comanche Power Station, Lawton

    Major air pollution source.

    EPA FRS registry ID 110001631707 (U.S. EPA ECHO) Agency record

    Severity 3.5

  20. Republic Paperboard Co, Lawton

    Large greenhouse gas emitter.

    EPA FRS registry ID 110001649690 (U.S. EPA ECHO) Agency record

    Severity 3.5

  21. Dolese Bros Co / Richards Spur Quarry, Elgin

    Air permit holder (minor source).

    EPA FRS registry ID 110007385221 (U.S. EPA ECHO) Agency record

    Severity 3.5

  22. American Water Fort Sill Wwtp, Fort Sill

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110020515030 (U.S. EPA ECHO) Agency record

    Severity 3.5

  23. Comanche (Ok), Lawton

    Gas power plant.

    Record ID 8059 (U.S. Energy Information Administration)

    Severity 3.3

  24. Georgia-Pacific Gypsum Llc - Fletcher Wall Board Operations, Fletcher

    NPDES wastewater discharge permit.

    EPA FRS registry ID 110007385230 (U.S. EPA ECHO) Agency record

    Severity 3.3

  25. Former Southwestern Hospital, Lawton

    Brownfield property.

    EPA FRS registry ID 110038755870 (U.S. EPA Brownfields (ACRES)) Agency record

    Severity 3

Correctional facilities

Prisons, jails and corrections operations with an EPA facility record, and the drinking water and wastewater compliance attached to them.

No correctional facility with an EPA record is located in this county.

Discovery / public records

Records to request for Comanche County

  • Oklahoma state cancer registry

    Cancer incidence counts by census tract or ZIP code, by cancer type and year (de-identified). Any cancer cluster inquiries or investigations in Comanche County, and their findings.

  • Oklahoma vital statistics office

    Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.

  • Oklahoma health department, environmental epidemiology

    Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.

  • Oklahoma environmental agency and the U.S. EPA regional office

    Compliance history, inspection reports, notices of violation, penalties and enforcement actions for each facility above, cited by EPA FRS registry ID.

  • Oklahoma drinking water program

    Violation notices, sampling results and sanitary surveys for the public water systems serving the county, including any system serving a correctional facility.

  • Department of corrections or county sheriff

    Water testing, grievances and environmental health inspections for the correctional facilities listed above.

Each Envyrofax address report includes a printable records request worksheet with the custodian and the exact request wording per finding.

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