| Name | Yellowstone County |
| Place Type | County |
| Located in | Montana, United States |
| Coordinates (lat, lon) | 45.9166236, -108.3006837 |
| Population | 113,419 |
| Elevation | 915 m |
| USGS GNIS FeatureID | 1719558 |
| Histopolis Place ID | 683610979 |
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| Border Colors: | | Yellowstone County | | Montana |
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2 Cities, 1 Town, 29 Unincorporated Places (u.p.) (Unincoporated Place (u.p.) is assumed unless noted)