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Hennepin County, Minnesota: environmental and disease records

Cancer mortality in Hennepin County is 129 deaths per 100,000 people per year against a U.S. rate of 143.2. Federal databases place 2,419 regulated facilities, sites and hazards inside the county, led by Air permit holder (minor source) (431), Small hazardous waste generator (394), Rail grade crossing (335). 4 correctional facilities operate in the county. 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: 45.0134, -93.4874.

How this county ranks in Minnesota

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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 Hennepin County compared with the United States
Cancer	Measure	County rate	U.S. rate	Times U.S.	95% interval	Years
Melanoma of the skin	New cases	34.2	23.8	1.44xSignificant	32.8 to 35.6	2019-2023
Non-Hodgkin lymphoma	New cases	21.9	18.5	1.18xSignificant	20.8 to 23	2019-2023
Esophagus	New cases	5.4	4.6	1.17xSignificant	4.8 to 5.9	2019-2023
Leukemia	New cases	15.7	14.5	1.08xSignificant	14.7 to 16.6	2019-2023
Brain & nervous system	Deaths	4.7	4.4	1.07x	4.2 to 5.2	2020-2024
Esophagus	Deaths	3.9	3.7	1.05x	3.5 to 4.4	2020-2024
Childhood cancer (under 15)	Deaths	2	1.9	1.05x	1.3 to 3	2020-2024
Leukemia	Deaths	6	5.7	1.05x	5.5 to 6.6	2020-2024
Pancreas	New cases	14.5	13.9	1.04x	13.7 to 15.5	2019-2023
Brain & nervous system	New cases	6.4	6.2	1.03x	5.8 to 7	2019-2023
Bladder	New cases	19.3	18.7	1.03x	18.3 to 20.3	2019-2023
All cancer	New cases	465.5	453.4	1.03xSignificant	460.4 to 470.6	2019-2023
Non-Hodgkin lymphoma	Deaths	4.9	4.8	1.02x	4.4 to 5.4	2020-2024
Pancreas	Deaths	11.4	11.3	1.01x	10.6 to 12.2	2020-2024
Thyroid	Deaths	0.5	0.5	1x	0.3 to 0.7	2020-2024
Liver & bile duct	New cases	8.6	8.7	0.99x	7.9 to 9.3	2019-2023
Stomach	New cases	6.2	6.6	0.94x	5.7 to 6.9	2019-2023
All cancer	Deaths	129	143.2	0.9x	126.4 to 131.7	2020-2024
Childhood cancer (under 15)	New cases	14.6	16.4	0.89x	12.5 to 17	2019-2023
Stomach	Deaths	2.4	2.7	0.89x	2 to 2.8	2020-2024
Lung & bronchus	New cases	45.3	51.8	0.87x	43.7 to 46.9	2019-2023
Liver & bile duct	Deaths	5.7	6.6	0.86x	5.2 to 6.3	2020-2024
Melanoma of the skin	Deaths	1.7	2	0.85x	1.4 to 2.1	2020-2024
Kidney & renal pelvis	New cases	14.9	17.9	0.83x	14 to 15.8	2019-2023
Thyroid	New cases	10.8	13	0.83x	10 to 11.7	2019-2023
Lung & bronchus	Deaths	23.7	30.2	0.78x	22.6 to 24.8	2020-2024
Bladder	Deaths	3.2	4.1	0.78x	2.8 to 3.6	2020-2024
Kidney & renal pelvis	Deaths	2.5	3.4	0.74x	2.2 to 2.9	2020-2024

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 Hennepin County
Measure	County	U.S. median	Difference	Unit
Premature death	6,600.5	9,842.6	-33%	years of life lost before age 75 per 100,000
Life expectancy	79.5	75.3	+6%	years
Child mortality	47.7	59.8	-20%	deaths under age 18 per 100,000
Infant mortality	5	6.2	-19%	deaths under age 1 per 1,000 live births
Injury deaths	84.2	96.9	-13%	deaths per 100,000
Drug overdose deaths	32.3	28.6	+13%	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.

Formaldehyde17.39 per million
Naphthalene3.21 per million
Carbon Tetrachloride2.97 per million
Benzene2.61 per million

EPA Air Quality Index 2025

Monitored on 365 days: 211 good, 10 unhealthy for sensitive groups or worse. Median AQI 45, peak 178.

Regulated facilities, sites and hazards by type

2,419 active records inside the county from EPA ECHO, TRI, Superfund, Brownfields, NPDES, EIA, FAA, FRA and corrections data.

Air permit holder (minor source)431
Small hazardous waste generator394
Rail grade crossing335
Gas station (mapped facility)273
Auto repair or body shop (mapped facility)193
Brownfield property191
Large hazardous waste generator98
Toxic chemical release facility (TRI)92
Industrial wastewater discharge81
NPDES wastewater discharge permit79
TRI reporting facility75
Hazardous waste transporter51
Dry cleaner (mapped facility)35
Major air pollution source25
EPA air quality monitor11
Large greenhouse gas emitter10
Heliport8
Superfund (NPL) site7
Airfield4
Correctional facility (prison or jail)4
Public airport3
Commercial airport3
Gas power plant3
Solar power plant3
Scrapyard (mapped facility)3
Hydroelectric plant2
Wastewater plant (mapped facility)2
Crematorium (mapped facility)1
Landfill (mapped facility)1
Biomass 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.

Joslyn Manufacturing & Supply Co., Brooklyn Center
Superfund (NPL) site. Hazard Ranking System score 44.3. NPL Site.
EPA site ID MND044799856 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
General Mills/Henkel Corp., Minneapolis
Superfund (NPL) site. Hazard Ranking System score 36.3. NPL Site.
EPA site ID MND051441731 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Reilly Tar & Chemical Corp. (St. Louis Park Plant), St. Louis Park
Superfund (NPL) site. NPL Site.
EPA site ID MND980609804 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Spring Park Municipal Well Field, Spring Park
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID MNN000502963 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Southeast Hennepin Area Groundwater and Vapor, Minneapolis
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID MNN000506043 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Highway 100 and County Road 3 Groundwater Plume, Edina, St. Louis Park
Superfund (NPL) site. Hazard Ranking System score 50. NPL Site.
EPA site ID MNN000506121 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
South Minneapolis Residential Soil Contamination, Minneapolis
Superfund (NPL) site. Hazard Ranking System score 44.6. NPL Site.
EPA site ID MNN000509136 (U.S. EPA Superfund (SEMS/NPL)) Agency record
Severity 10
Near Road I-35/I-94, Minneapolis
EPA air quality monitor.
Record ID 270530962 (U.S. EPA AirData)
Severity 8.8
Consolidate Precision Products-Minneapolis Operation, Bloomington
Toxic chemical release facility (TRI). Chemicals: Aluminum (fume or dust), Copper, Zinc compounds, Naphthalene and 4 more. Reports carcinogens. 142,805 lbs released over 5 years.
TRI facility ID 55420HTCHC8701H (U.S. EPA Toxics Release Inventory)
Severity 8.5
The Sierra Co Llc, Minnetonka
Toxic chemical release facility (TRI). Chemicals: Xylene (mixed isomers), 1,2,4-Trimethylbenzene, Ethylbenzene, Certain glycol ethers and 4 more. Reports carcinogens. 78,904 lbs released over 5 years.
TRI facility ID 55343SRRCR11401 (U.S. EPA Toxics Release Inventory)
Severity 8.3
Filmtec Corp, Edina
Toxic chemical release facility (TRI). Chemicals: N,N-Dimethylformamide, Diisocyanates, 1,3-Phenylenediamine. Reports carcinogens. 58,254 lbs released over 5 years.
TRI facility ID 55435FLMTC7200O (U.S. EPA Toxics Release Inventory)
Severity 8.2
Interplastic Corp, Minneapolis
Toxic chemical release facility (TRI). Chemicals: Styrene, Maleic anhydride, Phthalic anhydride, Dicyclopentadiene and 3 more. Reports carcinogens. 38,894 lbs released over 5 years.
TRI facility ID 55413NTRPL2015N (U.S. EPA Toxics Release Inventory)
Severity 8
Boston Scientific Weaver Lake Campus, Maple Grove
Toxic chemical release facility (TRI). Chemicals: Methanol, Nitric acid, Thiourea, Nitrate compounds (water dissociable; reportable only when in aqueous solution). Reports carcinogens. 35,176 lbs released over 5 years.
TRI facility ID 55311BSTNS2SCIM (U.S. EPA Toxics Release Inventory)
Severity 8
Veolia Wts Solutions Usa Inc., Minnetonka
Toxic chemical release facility (TRI). Chemicals: N,N-Dimethylformamide, Methanol, N-Methyl-2-pyrrolidone, Diisocyanates and 4 more. Reports carcinogens. 34,424 lbs released over 5 years.
TRI facility ID 55343SMNCS5951C (U.S. EPA Toxics Release Inventory)
Severity 8
Greatbatch Ltd. (D/B/A Greatbatch Medical), Minneapolis
Toxic chemical release facility (TRI). Chemicals: Trichloroethylene. Reports carcinogens. 30,047 lbs released over 5 years.
TRI facility ID 55414GLBTL73024 (U.S. EPA Toxics Release Inventory)
Severity 7.9
Skywater Technology Foundry Inc, Bloomington
Toxic chemical release facility (TRI). Chemicals: Hydrogen fluoride, Perfluorobutane sulfonic acid, Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy-, ether with α-fluoro-ω-(2-hydroxyethyl)poly(difluoromethylene) (1:1), Perfluorotetradecanoic acid and 4 more. Reports carcinogens. Reports PFAS. 248 lbs released over 5 years.
TRI facility ID 55425CYPRS2401E (U.S. EPA Toxics Release Inventory)
Severity 7.8
Pioneer Metal Finishing, New Hope
Toxic chemical release facility (TRI). Chemicals: Nitric acid, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nickel compounds. Reports carcinogens. 21,654 lbs released over 5 years.
TRI facility ID 5542WPNRMT48QUE (U.S. EPA Toxics Release Inventory)
Severity 7.8
Veolia Wts Solutions Usa Inc, Minnetonka
TRI reporting facility. Penalties $5,400.
EPA FRS registry ID 110000424924 (U.S. EPA ECHO) Agency record
Severity 7.5
Zalk Steel & Supply Co, Minneapolis
Toxic chemical release facility (TRI). Chemicals: Zinc compounds, Lead. Reports carcinogens. 5,074 lbs released over 5 years.
TRI facility ID 55418ZLKST446ST (U.S. EPA Toxics Release Inventory)
Severity 7.3
Safety Rail Co Llc, Spring Park
Toxic chemical release facility (TRI). Chemicals: Manganese, Chromium, Copper, Zinc compounds and 1 more. Reports carcinogens. 3,992 lbs released over 5 years.
TRI facility ID 5538WSFTYR4244S (U.S. EPA Toxics Release Inventory)
Severity 7.3
Avtec Finishing Systems Inc, New Hope
Toxic chemical release facility (TRI). Chemicals: Nitric acid, Nickel compounds, Nitrate compounds (water dissociable; reportable only when in aqueous solution), Nickel And Nickel Compounds. Reports carcinogens. 3,060 lbs released over 5 years.
TRI facility ID 55428VTCFN9101S (U.S. EPA Toxics Release Inventory)
Severity 7.2
Cemstone - Minneapolis, Minneapolis
Toxic chemical release facility (TRI). Chemicals: Nitrate compounds (water dissociable; reportable only when in aqueous solution), Lead. Reports carcinogens. 2,741 lbs released over 5 years.
TRI facility ID 55411CMSTN6526T (U.S. EPA Toxics Release Inventory)
Severity 7.1
Honeywell Aerospace - Minneapolis, Minneapolis
Toxic chemical release facility (TRI). Chemicals: Trichloroethylene, Lead. Reports carcinogens. 2,650 lbs released over 5 years.
TRI facility ID 55440HNYWL2600R (U.S. EPA Toxics Release Inventory)
Severity 7.1
Pacific Street, Minneapolis
EPA air quality monitor.
Record ID 270530910 (U.S. EPA AirData)
Severity 7.1
Northland Aluminum Products I Nc, Minneapolis
Toxic chemical release facility (TRI). Chemicals: Styrene, Copper, Nickel, Lead and 1 more. Reports carcinogens. 2,279 lbs released over 5 years.
TRI facility ID 55416NRTHL5005H (U.S. EPA Toxics Release Inventory)
Severity 7.1

Correctional facilities

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

Hennepin Cnty Adult Correction Facility, Plymouth
EPA FRS registry ID
110008651011
Wastewater permit
None on record
EPA detailed facility report
Corizon - Hennepin County Correctional Facility, Plymouth
EPA FRS registry ID
110068169948
Wastewater permit
None on record
EPA detailed facility report
Hennepin County Juvenile Detention Center, Minneapolis
EPA FRS registry ID
110068290361
Wastewater permit
None on record
EPA detailed facility report
Hcmc Jail Health Services, Minneapolis
EPA FRS registry ID
110068995476
Wastewater permit
None on record
EPA detailed facility report

Discovery / public records

Records to request for Hennepin County

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