Eau Claire Flag

Eau Claire

County:
Butler County
County Seat:
No
Area (mi²):
1.275
State:
Pennsylvania

Eau Claire is a borough located in Butler County, Pennsylvania. Eau Claire has a 2026 population of 295. Eau Claire is currently declining at a rate of -1.01% annually and its population has decreased by -3.59% since the most recent census, which recorded a population of 306 in 2020.

295
Total Population
231
Density (mi²)
-3 -1.01%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)