COUNTY · MT
Powder River County, Montana
Powder River County is a county in Montana with FIPS code 30075 and an estimated population of 1,743 (Census 2023), 47th largest of 56 in the state.
County facts
- Name
- Powder River County
- State
- Montana
- Type
- county
- FIPS code
- 30075
- State FIPS
- 30
- Population (2023)
- 1,743
- Change since 2020
- +2.8%
- State rank
- 47 of 56
Population is the Census Bureau’s Vintage 2023 estimate.
Questions
What is the FIPS code for Powder River County?
Powder River County, Montana has the five-digit FIPS code 30075: 30 for the state and 075 for the county.
What state is Powder River County in?
Powder River County is in Montana.
How do I know if an address is in this county?
Use the address lookup. ZIP codes and city names can cross county lines, so an address is the reliable check.
Sources: U.S. Census Bureau geographic reference files; Census Bureau Population Estimates, Vintage 2023. Last reviewed 2026-10-27.