Sidney city, Montana
Official LSAD Designation: Sidney city • Census GEOID: 3067900
• Richland County
Sidney city is an incorporated city in Richland County, Montana. According to official records from the Census (2025), Sidney city had an estimated population of 6,217 residents. Official Census Bureau geographic records classify this community under LSAD designation Sidney city (GEOID 3067900).
Local Government Administration U.S. Census Bureau GMAF
City Of Sidney
Municipal
Official Title:
City Clerk
Address:
115 2ND ST SE, SIDNEY MT 59270-4103
County Of Richland
County
Official Title:
Chairman
Address:
201 W MAIN ST, SIDNEY MT 59270-4035
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 6,217 | 2025 |
| Median Household Income | $62,538 | 2020-2024 |
| Median Home Value | $236,900 | 2020-2024 |
| Land Area | 3.29 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).