Fountain County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 77th-largest in Indiana
The population of Fountain County, Indiana is 16,546 as of the 2023 American Community Survey, making it the 77th-largest county in Indiana. The median household income is $62,526, the median home value is $133,200, and the median age is 42.8.
The population of Fountain County has declined 2.6% since 2010 (17,280 → 16,833), a -0.19% annualized rate.
16,546
Population
-0.19%
Annual growth
42
People / sq mi
$62,526
Median Income
$133,200
Median Home Value
Fountain County covers 396 sq mi of land at 41.8 people per square mile.
About Fountain County, IN
Fountain County is a county in Indiana with a population of 16,546. It ranks #77 among counties in Indiana by population. The median age is 42.8, older than the national median. The population is 50.1% male and 49.9% female.
The median household income in Fountain County is $62,526, below the US median of $74,580. 9.2% of residents live below the federal poverty level. Home values sit at a median of $133,200, with monthly rent averaging $837. The homeownership rate of 74.7% is higher than the national rate of 64.8%.
Educational attainment in Fountain County reflects 13.7% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 5.6% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 23.5 minutes each way.
Fountain County Population History (2010-2024)
The county of Fountain County had a population of 17,280 in 2010 and 16,833 in 2024, a -2.6% growth over 14 years. The peak was 17,280 in 2010. Average annual growth rate: -0.18%.
16,833
Population (2024)
17,280
Population (2010)
17,280
Peak (2010)
-0.18%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 17,280 |
| 2011 | 17,161 |
| 2012 | 17,123 |
| 2013 | 16,886 |
| 2014 | 16,697 |
| 2015 | 16,543 |
| 2016 | 16,464 |
| 2017 | 16,442 |
| 2018 | 16,439 |
| 2019 | 16,425 |
| 2020 | 16,493 |
| 2021 | 16,485 |
| 2022 | 16,601 |
| 2023 | 16,674 |
| 2024 | 16,833 |
Race & Ethnicity
| White | 94.6% |
| Black or African American | 0.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
| Two or More Races | 0.0% |
Age & Sex
42.8
Median Age
49.9%
Female
50.1%
Male
19.7%
Age 65+
Age Distribution
Children (under 15): 18.3% · Seniors (65+): 19.7%
Income & Poverty
| Median household income | $62,526$-7,525 vs state |
| Mean household income | $75,131 |
| Per-capita income | $31,232 |
| Poverty rate | 9.2%+0.8% vs state |
| Unemployment rate | 2.8% |
| Employment-to-population | 59.1% |
Top Industries by Employment
The largest employment sector in Fountain County is manufacturing, accounting for 27.0% of workers.
How residents commute
0.4%
Drive alone
3.2%
Carpool
80.2%
Public transit
5.6%
Work from home
23.5 min
Avg commute
Housing
$133,200$-68,400 vs state
Median home value
$837
Median rent
74.7%
Homeownership rate
7,823
Total housing units
87.6%
Occupied
12.4%
Vacant
25.3%
Renter-occupied
Social & access
93.1%
With health insurance
92.9%
With broadband internet
39.3%
Foreign-born
7.7%
Veterans (18+)
18.5%
With a disability
97.5%
Speak language other than English at home
Education
89.7%
High School+
13.7%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Fountain County, Indiana has a population of 16,546 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 77th-largest county in Indiana. Population density is 42 people per square mile.
The population of Fountain County has declined 2.6% since 2010 (17,280 → 16,833), a -0.19% annualized rate.
The median household income in Fountain County, Indiana is $62,526, with mean (average) household income of $75,131 and per-capita income of $31,232. 9.2% of residents live below the federal poverty level.
In Fountain County, the largest racial and ethnic groups are White (94.6%), Hispanic or Latino (0.9%), Black or African American (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Fountain County, Indiana is 42.8 years. Residents are 49.9% female and 50.1% male.
The median home value in Fountain County is $133,200 and median monthly rent is $837. 74.7% of occupied housing units are owner-occupied. The county has 7,823 total housing units, 12.4% of which are vacant.
The largest employment sector in Fountain County, Indiana is manufacturing, employing 27.0% of workers. The unemployment rate is 2.8%.
Indianapolis is among the largest cities associated with Fountain County, Indiana, with a population of 882,043.
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Statewide data for Indiana
Population, race, income, age, and trends across Indiana
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.