Colby city, Kansas
Official LSAD Designation: Colby city • Census GEOID: 2014650
• Thomas County
Colby city is an incorporated city in Thomas County, Kansas. According to official records from the Census (2025), Colby city had an estimated population of 5,489 residents. Official Census Bureau geographic records classify this community under LSAD designation Colby city (GEOID 2014650).
Local Government Administration U.S. Census Bureau GMAF
City Of Colby
Municipal
Official Title:
City Manager
Address:
585 N FRANKLIN AVE, COLBY KS 67701-2399
County Of Thomas
County
Official Title:
County Clerk
Address:
300 N COURT AVE, COLBY KS 67701-2421
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 5,489 | 2025 |
| Median Household Income | $63,494 | 2020-2024 |
| Median Home Value | $163,000 | 2020-2024 |
| Land Area | 3.94 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).