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 289. Eau Claire is currently declining at a rate of -1.03% annually and its population has decreased by -5.56% since the most recent census, which recorded a population of 306 in 2020.

The median household income in Eau Claire is $61,719 with a poverty rate of 13.6%. The median age in Eau Claire is 39.6 years: 37.9 years for males, and 43.5 years for females. For every 100 females there are 132.5 males.

289
Total Population
227
Density (mi²)
-3 -1.03%
Growth

Eau Claire Population

Eau Claire Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026289-3-1.03%
2025292-3-1.02%
2024295-3-1.01%
2023298-1-0.33%
2022299-3-0.99%
2021302-4-1.31%
202030600%
2019295-2-0.67%
2018297-2-0.67%
2017299-2-0.66%
2016301-3-0.99%
2015304-2-0.65%
2014306-4-1.29%
2013310-4-1.27%
2012314-1-0.32%
2011315-1-0.32%
201031600%

Median Age

Overall: 39.6 years
Female: 43.5 years
Male: 37.9 years

Eau Claire Adults

There are 210 adults, (65 of whom are seniors) in Eau Claire.

Sex Ratio

Female: 117 (43%)
Male: 155 (57%)

Demographics

The racial composition of Eau Claire includes 97.06% White, and smaller percentages for Two or more races, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White26497.06%
Two or more races62.21%
Other race20.74%
Race
Population ↓
Percentage (of total)
White26497.06%
Two or more races62.21%
Other race20.74%

Eau Claire Marital Status

Economics and Income Statistics

Eau Claire 's average per capita income is $44,750. Household income levels show a median of $61,719. The poverty rate stands at 13.6%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Families$74,375$84,299
Married Families$71,429-
Households$61,719$72,777
Non Families$40,357$43,364

$44,750

Average Income

$61,719

Median Household Income

13.6%

Poverty Rate

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)