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Brownfield sites in Montana
EPA lists 918 brownfield sites in Montana. Grant recipients report them. Here are the counts, EPA's flags and every county.
EPA flags
| EPA flag | Sites |
|---|---|
| Ready for reuse | 346 |
| Assessment | 586 |
| Cleanup | 28 |
| Targeted assessment | 209 |
| State or tribal program | 182 |
| Multipurpose grant | 1 |
| Area-wide planning | 1 |
A site can carry more than one flag. The grant flags show which kinds of EPA brownfield funding a site is listed under.
Counties with 8 or more sites
| County | Sites | Ready for reuse |
|---|---|---|
| Big Horn County | 10 | 3 |
| Blaine County | 73 | 46 |
| Cascade County | 88 | 44 |
| Chouteau County | 10 | 2 |
| Custer County | 10 | 2 |
| Dawson County | 8 | 5 |
| Deer Lodge County | 8 | 1 |
| Fergus County | 26 | 12 |
| Flathead County | 56 | 26 |
| Gallatin County | 9 | 1 |
| Glacier County | 47 | 14 |
| Hill County | 45 | 17 |
| Jefferson County | 12 | 1 |
| Lake County | 27 | 7 |
| Lewis And Clark County | 31 | 13 |
| Missoula County | 76 | 44 |
| Musselshell County | 29 | 5 |
| Park County | 9 | 3 |
| Pondera County | 12 | 0 |
| Ravalli County | 10 | 1 |
| Roosevelt County | 51 | 15 |
| Rosebud County | 55 | 25 |
| Sanders County | 9 | 1 |
| Silver Bow County | 8 | 2 |
| Toole County | 10 | 3 |
| Valley County | 16 | 4 |
| Yellowstone County | 81 | 30 |
Counties with fewer than 8 sites
These counties have no page of their own. The number is their site count.
- Adams County (1)
- Beaverhead County (4)
- Broadwater County (6)
- Carbon County (6)
- Carter County (5)
- Choteau County (1)
- Daniels County (1)
- Fallon County (5)
- Garfield County (3)
- Golden Valley County (1)
- Judith Basin County (2)
- Laramie County (1)
- Liberty County (3)
- Lincoln County (6)
- Madison County (4)
- McCone County (4)
- Meagher County (1)
- Mt County (4)
- Petroleum County (4)
- Phillips County (3)
- Powder River County (1)
- Powell County (7)
- Prairie County (3)
- Sheridan County (1)
- Stillwater County (4)
- Sweet Grass County (2)
- Teton County (2)
- Wheatland County (6)
- Wibaux County (1)
To see each site in Montana on a map, use the Cleanups in My Community map, on EPA's site.
What this data holds
- Acreage isn't in EPA's national data, so we don't show site sizes.
- We hold no flood data for these sites.
- We show the city and county, not street addresses.
- Zoning: Check zoning with the city.
- Grant recipients report these sites to EPA. A flag is EPA's record, not a site visit.
Go further with a paid plan
A paid plan runs site reports and area scans on the sites you pick. How much we read varies by state.
Starter: US$39 a month for 100 credits. Run full site reports, area scans and letter drops.
Or create a free account first. No card needed.
US EPA data, as of 18 Oct 2026, reported by grant recipients. Not endorsed by EPA. Not legal or environmental advice; confirm with the state or EPA region.