Haddam city, Kansas
Official LSAD Designation: Haddam city • Census GEOID: 2029400
• Washington County
Haddam city is an incorporated city in Washington County, Kansas. According to official records from the Census (2025), Haddam city had an estimated population of 108 residents. Official Census Bureau geographic records classify this community under LSAD designation Haddam city (GEOID 2029400).
Local Government Administration U.S. Census Bureau GMAF
City Of Haddam
Municipal
Official Title:
Mayor
Address:
PO BOX 25, HADDAM KS 66944
County Of Washington
County
Official Title:
County Clerk
Address:
214 C ST, WASHINGTON KS 66968-1928
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 108 | 2025 |
| Median Household Income | $67,500 | 2020-2024 |
| Median Home Value | $46,300 | 2020-2024 |
| Land Area | 0.34 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).