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 defined demographically by education — 13.7% of adults hold a bachelor’s degree, below the national average. Fountain County is a county in Indiana with a population of 16,546.
The typical household here earns about $62,526, below the US median of $78,538. About 9.2% of residents live below the federal poverty level, below the national 12.4%. Homes are comparatively cheap — a median value of $133,200, with typical rent around $837.
Four-year-degree attainment is near the bottom of the range for US counties, 13.7%, below the national 35.0%. Remote work is on the lower side here, at 5.6%, below the national 14.0%, and the average commute runs about 24 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
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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.
Fountain County, IN Climate
Fountain County, IN has an average annual temperature of 10.7°C (51°F) and receives about 1009 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10.7°C
Avg Temp
1009
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -4° / 25° | 50 mm |
| February | -2° / 29° | 48 mm |
| March | 5° / 40° | 79 mm |
| April | 11° / 51° | 98 mm |
| May | 16° / 62° | 108 mm |
| June | 22° / 71° | 107 mm |
| July | 24° / 74° | 106 mm |
| August | 22° / 72° | 102 mm |
| September | 19° / 66° | 80 mm |
| October | 12° / 54° | 72 mm |
| November | 6° / 42° | 86 mm |
| December | -1° / 30° | 73 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Fountain County, IN
The most comfortable months to visit Fountain County, IN are typically June, September and August, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -9°C low). May is usually the wettest month.
Where to stay near Fountain County
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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.