County
· Montana
Yellowstone County
Yellowstone County is the most populous county in the U.S. state of Montana. As of the 2020 census, the population was 164,731. Its county seat is Billings, the state's most populous city. Like the nearby national park, Yellowstone County is named after the Yellowstone River which roughly bisects the county, flowing southwest to northeast. The river, in turn, was named for the yellow sandstone cliffs in what is now Yellowstone County.
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Cities and towns 3
Reference data (Census of Governments 2022)
- Census ID (PID6)
- 169433
- FIPS state
- 30
- FIPS county
- 111
- FIPS place
- 99111
- Census record name
- COUNTY OF YELLOWSTONE
- Mailing address
- PO BOX 35003, BILLINGS 59107