ID / county FIPS 16083 / county research

Twin Falls County, Idaho: environmental and disease records

Cancer mortality in Twin Falls County is 147.1 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 516 regulated facilities, sites and hazards inside the county, led by Industrial wastewater discharge (135), NPDES wastewater discharge permit (106), Rail grade crossing (85). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 20 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: 42.4462, -114.5535.

How this county ranks in Idaho

View on the heat map Scan an address in this county

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 Twin Falls County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Melanoma of the skin	Deaths	3.2	2	1.6x	1.9 to 5.1	2020-2024
Melanoma of the skin	New cases	33.8	23.8	1.42xSignificant	28.9 to 39.3	2019-2023
Esophagus	New cases	6.2	4.6	1.35x	4.2 to 8.8	2019-2023
Leukemia	New cases	18.9	14.5	1.3xSignificant	15.4 to 23	2019-2023
Leukemia	Deaths	7.2	5.7	1.26x	5.2 to 9.9	2020-2024
Non-Hodgkin lymphoma	Deaths	5.9	4.8	1.23x	4 to 8.3	2020-2024
Bladder	New cases	22.1	18.7	1.18x	18.4 to 26.4	2019-2023
Brain & nervous system	New cases	7.3	6.2	1.18x	5.1 to 10.1	2019-2023
Esophagus	Deaths	4.3	3.7	1.16x	2.8 to 6.5	2020-2024
Pancreas	New cases	15.1	13.9	1.09x	12 to 18.7	2019-2023
Non-Hodgkin lymphoma	New cases	19.4	18.5	1.05x	15.8 to 23.6	2019-2023
Kidney & renal pelvis	Deaths	3.5	3.4	1.03x	2.1 to 5.5	2020-2024
All cancer	Deaths	147.1	143.2	1.03x	137.2 to 157.6	2020-2024
All cancer	New cases	449.9	453.4	0.99x	431.8 to 468.6	2019-2023
Childhood cancer (under 15)	New cases	16.2	16.4	0.99x	9.2 to 26.3	2019-2023
Pancreas	Deaths	10.8	11.3	0.96x	8.3 to 13.9	2020-2024
Liver & bile duct	Deaths	6.3	6.6	0.95x	4.4 to 8.7	2020-2024
Thyroid	New cases	11.8	13	0.91x	8.8 to 15.4	2019-2023
Kidney & renal pelvis	New cases	16	17.9	0.89x	12.8 to 19.9	2019-2023
Lung & bronchus	Deaths	26.5	30.2	0.88x	22.5 to 31.1	2020-2024
Liver & bile duct	New cases	7.6	8.7	0.87x	5.4 to 10.3	2019-2023
Stomach	New cases	5.5	6.6	0.83x	3.7 to 8	2019-2023
Bladder	Deaths	3.4	4.1	0.83x	2 to 5.3	2020-2024
Brain & nervous system	Deaths	3.5	4.4	0.8x	2.1 to 5.6	2020-2024
Lung & bronchus	New cases	40.7	51.8	0.79x	35.5 to 46.3	2019-2023

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 Twin Falls County
Measure	County	U.S. median	Difference	Unit
Premature death	8,578.6	9,842.6	-13%	years of life lost before age 75 per 100,000
Life expectancy	76	75.3	+1%	years
Child mortality	52.9	59.8	-11%	deaths under age 18 per 100,000
Infant mortality	3.9	6.2	-37%	deaths under age 1 per 1,000 live births
Injury deaths	110.9	96.9	+14%	deaths per 100,000
Drug overdose deaths	24.1	28.6	-16%	deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 20 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde12.43 per million
Carbon Tetrachloride2.66 per million
Acetaldehyde1.34 per million
Naphthalene1.26 per million

EPA Air Quality Index 2025

Monitored on 365 days: 339 good, 1 unhealthy for sensitive groups or worse. Median AQI 26, peak 105.

Regulated facilities, sites and hazards by type

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

Industrial wastewater discharge135
NPDES wastewater discharge permit106
Rail grade crossing85
Air permit holder (minor source)56
Gas station (mapped facility)35
Auto repair or body shop (mapped facility)21
Brownfield property14
Small hazardous waste generator12
Wind power plant12
Hydroelectric plant10
TRI reporting facility7
Toxic chemical release facility (TRI)7
Public airport4
Large greenhouse gas emitter3
EPA air quality monitor2
Heliport2
Major air pollution source1
Commercial airport1
Biomass power plant1
Coal power plant1
Solar 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.

Amalgamated Sugar Co Llc, Twin Falls
TRI reporting facility. Penalties $22,600.
EPA FRS registry ID 110000468388 (U.S. EPA ECHO) Agency record
Severity 10
Amalgamated Sugar Co, Twin Falls
Toxic chemical release facility (TRI). Chemicals: Ammonia, Methanol, Lead compounds, Lead And Lead Compounds and 1 more. 2,171,616 lbs released over 5 years.
TRI facility ID 83303MLGMTPOBOX (U.S. EPA Toxics Release Inventory)
Severity 7.9
Amalgamated Sugar Co Llc, Twin Falls
Major air pollution source. Penalties $22,600.
EPA FRS registry ID 110000468388 (U.S. EPA ECHO) Agency record
Severity 7.3
Amalgamated Sugar Co Llc, Twin Falls
NPDES wastewater discharge permit. Penalties $22,600.
EPA FRS registry ID 110000468388 (U.S. EPA ECHO) Agency record
Severity 6.8
Twin Falls Stp, Twin Falls
NPDES wastewater discharge permit. Penalties $19,188.
EPA FRS registry ID 110039977102 (U.S. EPA ECHO) Agency record
Severity 6.8
Lamb Weston Inc, Twin Falls
Toxic chemical release facility (TRI). Chemicals: Ammonia, Hydrogen sulfide, Nitric acid. 74,625 lbs released over 5 years.
TRI facility ID 83301NVRSL856RU (U.S. EPA Toxics Release Inventory)
Severity 6.7
Twin Falls Redi-Mix, Twin Falls
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead. Reports carcinogens. 416 lbs released over 5 years.
TRI facility ID 8330WTWNFL197AD (U.S. EPA Toxics Release Inventory)
Severity 6.5
Amalgamated Sugar Co Llc, Twin Falls
Large greenhouse gas emitter. Penalties $22,600.
EPA FRS registry ID 110000468388 (U.S. EPA ECHO) Agency record
Severity 6.3
Amalgamated Sugar Twin Falls, Twin Falls
Coal power plant.
Record ID 10504 (U.S. Energy Information Administration)
Severity 6
Lamb Weston Inc, Twin Falls
TRI reporting facility.
EPA FRS registry ID 110000468379 (U.S. EPA ECHO) Agency record
Severity 6
Lippert Components - Twin Falls #64, Twin Falls
Toxic chemical release facility (TRI). Chemicals: Manganese, Chromium, Lead. Reports carcinogens. 39 lbs released over 5 years.
TRI facility ID 8330WLPPRT427SH (U.S. EPA Toxics Release Inventory)
Severity 5.7
Chobani Idaho, Twin Falls
TRI reporting facility.
EPA FRS registry ID 110045947794 (U.S. EPA ECHO) Agency record
Severity 5
Joslin Fld/Magic Valley Rgnl, Twin Falls
Commercial airport. O.
Record ID TWF (FAA / U.S. DOT)
Severity 5
Twin Falls Redi-Mix, Twin Falls
TRI reporting facility.
EPA FRS registry ID 110070047371 (U.S. EPA ECHO) Agency record
Severity 5
Twin Falls Stp, Twin Falls
Air permit holder (minor source). Penalties $19,188.
EPA FRS registry ID 110039977102 (U.S. EPA ECHO) Agency record
Severity 4.8
First Ascent Fish Farm, Buhl
NPDES wastewater discharge permit.
EPA FRS registry ID 110006776275 (U.S. EPA ECHO) Agency record
Severity 4.5
Boswell Trout Farms Jacks Ponds Site, Buhl
NPDES wastewater discharge permit.
EPA FRS registry ID 110006776319 (U.S. EPA ECHO) Agency record
Severity 4.5
Rcp Fish Ponds, Buhl
NPDES wastewater discharge permit.
EPA FRS registry ID 110011272274 (U.S. EPA ECHO) Agency record
Severity 4.5
Lippert Components Twin Falls 64, Kimberly
TRI reporting facility.
EPA FRS registry ID 110043513999 (U.S. EPA ECHO) Agency record
Severity 4.4
Glanbia Foods Twin Falls, Twin Falls
TRI reporting facility.
EPA FRS registry ID 110000468397 (U.S. EPA ECHO) Agency record
Severity 4
Hansen Stp, Hansen
NPDES wastewater discharge permit.
EPA FRS registry ID 110039977344 (U.S. EPA ECHO) Agency record
Severity 4
J D Heiskell And Company, Twin Falls
TRI reporting facility.
EPA FRS registry ID 110040629282 (U.S. EPA ECHO) Agency record
Severity 4
Box Canyon Trout Farm, Buhl
NPDES wastewater discharge permit.
EPA FRS registry ID 110050463897 (U.S. EPA ECHO) Agency record
Severity 4
Snyder Blue Rock Farms, Buhl
NPDES wastewater discharge permit.
EPA FRS registry ID 110006776266 (U.S. EPA ECHO) Agency record
Severity 3.8
Chobani Idaho, Twin Falls
Large greenhouse gas emitter.
EPA FRS registry ID 110045947794 (U.S. EPA ECHO) Agency record
Severity 3.5

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 Twin Falls County

Idaho 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 Twin Falls County, and their findings.
Idaho vital statistics office
Death certificate counts by cause of death and residence tract or ZIP code, and the years behind the mortality measures above.
Idaho health department, environmental epidemiology
Health consultations or assessments by ATSDR or the state health department covering the county, and any exposure investigations.
Idaho 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.
Idaho 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.

Scan an address in Twin Falls County View on the heat map All Idaho counties