ID / county FIPS 16041 / county research

Franklin County, Idaho: environmental and disease records

Cancer mortality in Franklin County is 136.1 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 120 regulated facilities, sites and hazards inside the county, led by Rail grade crossing (46), Industrial wastewater discharge (21), Air permit holder (minor source) (14). EPA AirToxScreen estimates a lifetime cancer risk from outdoor air toxics of 10 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: 42.2165, -111.8456.

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 Franklin County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Bladder	New cases	26.9	18.7	1.44x	16.7 to 41.2	2019-2023
Melanoma of the skin	New cases	28.9	23.8	1.21x	17.7 to 44.5	2019-2023
All cancer	Deaths	136.1	143.2	0.95x	111.8 to 164.2	2020-2024
All cancer	New cases	412.5	453.4	0.91x	368 to 461	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 Franklin County
Measure	County	U.S. median	Difference	Unit
Premature death	6,103.6	9,842.6	-38%	years of life lost before age 75 per 100,000
Life expectancy	78.9	75.3	+5%	years
Child mortality	n/a	59.8	n/a	deaths under age 18 per 100,000
Infant mortality	n/a	6.2	n/a	deaths under age 1 per 1,000 live births
Injury deaths	60	96.9	-38%	deaths per 100,000
Drug overdose deaths	n/a	28.6	n/a	deaths per 100,000

Air toxics and air quality

EPA AirToxScreen 2020

Lifetime cancer risk from outdoor air toxics: 10 in a million. EPA treats 100 in a million as the upper end of acceptable risk and 1 in a million as the goal.

Formaldehyde9.74 per million
Carbon Tetrachloride2.55 per million
Acetaldehyde0.71 per million
Benzene0.49 per million

EPA Air Quality Index 2025

Monitored on 351 days: 338 good, 0 unhealthy for sensitive groups or worse. Median AQI 21, peak 82.

Regulated facilities, sites and hazards by type

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

Rail grade crossing46
Industrial wastewater discharge21
Air permit holder (minor source)14
NPDES wastewater discharge permit14
Gas station (mapped facility)10
Auto repair or body shop (mapped facility)6
Brownfield property2
Hydroelectric plant2
Scrapyard (mapped facility)2
EPA air quality monitor1
Public airport1
Landfill (mapped facility)1

Highest-severity records

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

Preston Wwtp, Preston
NPDES wastewater discharge permit.
EPA FRS registry ID 110010027354 (U.S. EPA ECHO) Agency record
Severity 6
Franklin Wwtp, Franklin
NPDES wastewater discharge permit.
EPA FRS registry ID 110039983934 (U.S. EPA ECHO) Agency record
Severity 4.5
Riverdale Resort, Preston
NPDES wastewater discharge permit.
EPA FRS registry ID 110006775935 (U.S. EPA ECHO) Agency record
Severity 4.3
Treasure Canyon Calcium Mill Site, Preston
NPDES wastewater discharge permit.
EPA FRS registry ID 110070133668 (U.S. EPA ECHO) Agency record
Severity 3.3
Treasure Canyon Calcium Quarry, Preston
NPDES wastewater discharge permit.
EPA FRS registry ID 110070133827 (U.S. EPA ECHO) Agency record
Severity 3.3
Preston, Preston
EPA air quality monitor.
Record ID 160410002 (U.S. EPA AirData)
Severity 3.1
Preston Professional Plaza, Preston
Brownfield property.
EPA FRS registry ID 110038760481 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Franklin County Senior Center, Preston
Brownfield property.
EPA FRS registry ID 110044214640 (U.S. EPA Brownfields (ACRES)) Agency record
Severity 3
Preston, City Of - Preston Wwtp, Preston
Industrial wastewater discharge. Significant/Category I Noncompliance.
NPDES permit ID0020214: (U.S. EPA NPDES)
Severity 3
Staker Parson Edwards, Franklin
NPDES wastewater discharge permit.
EPA FRS registry ID 110067014402 (U.S. EPA ECHO) Agency record
Severity 2.5
Bear River Zeolite, Preston
Air permit holder (minor source). Penalties $3,150.
EPA FRS registry ID 110022937839 (U.S. EPA ECHO) Agency record
Severity 2
Incredible Concrete 00629, Franklin
Air permit holder (minor source). Penalties $2,115.
EPA FRS registry ID 110071201906 (U.S. EPA ECHO) Agency record
Severity 2
Preston, Preston
Public airport. O.
Record ID U10 (FAA / U.S. DOT)
Severity 2
Landfill
Landfill (mapped facility). Mapped facility presence only; no compliance or exposure measurements.
Record ID way/1079340722 (OpenStreetMap contributors) Agency record
Severity 2
Bridger Rock, Franklin
NPDES wastewater discharge permit.
EPA FRS registry ID 110072108992 (U.S. EPA ECHO) Agency record
Severity 1.8
Lundahl Ironworks, Franklin
NPDES wastewater discharge permit.
EPA FRS registry ID 110002136340 (U.S. EPA ECHO) Agency record
Severity 1.5
Weston-Fairview Road Over Bear River, Weston
NPDES wastewater discharge permit.
EPA FRS registry ID 110071907056 (U.S. EPA ECHO) Agency record
Severity 1.5
Itd District 5 Maintenance Shed, Preston
NPDES wastewater discharge permit.
EPA FRS registry ID 110071952044 (U.S. EPA ECHO) Agency record
Severity 1.5
Production Technologies, Inc., Preston
NPDES wastewater discharge permit.
EPA FRS registry ID 110072129529 (U.S. EPA ECHO) Agency record
Severity 1.5
Bear River Zeolite, Preston
NPDES wastewater discharge permit.
EPA FRS registry ID 110072145855 (U.S. EPA ECHO) Agency record
Severity 1.5
Leagacy Business Park, Franklin
NPDES wastewater discharge permit.
EPA FRS registry ID 110072158973 (U.S. EPA ECHO) Agency record
Severity 1.5
Legacy Village Phase 2 - Horizontal, Franklin
NPDES wastewater discharge permit.
EPA FRS registry ID 110072199807 (U.S. EPA ECHO) Agency record
Severity 1.5
3200 West, Weston
Rail grade crossing.
Record ID 806079F (Federal Railroad Administration)
Severity 1.3
5000 South, Weston
Rail grade crossing.
Record ID 806081G (Federal Railroad Administration)
Severity 1.3
4400 South, Weston
Rail grade crossing.
Record ID 806082N (Federal Railroad Administration)
Severity 1.3

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 Franklin 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 Franklin 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 Franklin County View on the heat map All Idaho counties