Eau Claire borough, Pennsylvania
Official LSAD Designation: Eau Claire borough • Census GEOID: 4222128
• Butler County
Eau Claire borough is an incorporated borough in Butler County, Pennsylvania. According to official records from the Census (2025), Eau Claire borough had an estimated population of 290 residents. Official Census Bureau geographic records classify this community under LSAD designation Eau Claire borough (GEOID 4222128).
Local Government Administration U.S. Census Bureau GMAF
Borough Of Eau Claire
Municipal
Official Title:
Mayor
Address:
PO BOX 203, EAU CLAIRE PA 16030
County Of Butler
County
Official Title:
Chairperson
Address:
PO BOX 1208, BUTLER PA 16003-1208
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 290 | 2025 |
| Median Household Income | $61,719 | 2020-2024 |
| Median Home Value | $146,900 | 2020-2024 |
| Land Area | 1.27 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).