Putnam County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 41st-largest in Indiana
The population of Putnam County, Indiana is 37,091 as of the 2023 American Community Survey, making it the 41st-largest county in Indiana. The median household income is $76,182, the median home value is $205,800, and the median age is 38.4.
The population of Putnam County has declined 0.3% since 2010 (37,903 → 37,804), a -0.02% annualized rate.
37,091
Population
-0.02%
Annual growth
77
People / sq mi
$76,182
Median Income
$205,800
Median Home Value
Putnam County covers 481 sq mi of land at 77.2 people per square mile.
About Putnam County, IN
The poverty rate is what most separates Putnam County from the typical county: 4.7% of residents live below the federal poverty line, against 12.4% nationally. Putnam County is a county in Indiana with a population of 37,091. It ranks #41 among counties in Indiana by population.
Households take in a median $76,182, comfortably near the US median of $78,538. Only 4.7% of residents live in poverty, below the national 12.4%. The typical home is valued at $205,800, with typical rent around $883.
19.9% of adults 25 and older hold a bachelor’s degree, below the national average of 35.0%. Around 9.5% of workers work from home, below the national 14.0%, and the average commute runs about 26 minutes each way.
Putnam County Population History (2010-2024)
The county of Putnam County had a population of 37,903 in 2010 and 37,804 in 2024, a -0.3% growth over 14 years. The peak was 37,903 in 2010. Average annual growth rate: -0.02%.
37,804
Population (2024)
37,903
Population (2010)
37,903
Peak (2010)
-0.02%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 37,903 |
| 2011 | 37,868 |
| 2012 | 37,654 |
| 2013 | 37,508 |
| 2014 | 37,464 |
| 2015 | 37,397 |
| 2016 | 37,151 |
| 2017 | 37,409 |
| 2018 | 37,494 |
| 2019 | 37,566 |
| 2020 | 36,682 |
| 2021 | 37,036 |
| 2022 | 37,300 |
| 2023 | 37,578 |
| 2024 | 37,804 |
Race & Ethnicity
| White | 91.7% |
| Black or African American | 3.4% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.6% |
| Two or More Races | 0.0% |
Age & Sex
38.4
Median Age
47.2%
Female
52.8%
Male
17.4%
Age 65+
Age Distribution
Children (under 15): 15.6% · Seniors (65+): 17.4%
Income & Poverty
| Median household income | $76,182+$6,131 vs state |
| Mean household income | $89,501 |
| Per-capita income | $34,050 |
| Poverty rate | 4.7%-3.7% vs state |
| Unemployment rate | 1.2% |
| Employment-to-population | 55.5% |
Top Industries by Employment
The largest employment sector in Putnam County is professional & business services, accounting for 24.9% of workers.
How residents commute
0.0%
Drive alone
5.1%
Carpool
78.6%
Public transit
9.5%
Work from home
26.2 min
Avg commute
Housing
$205,800+$4,200 vs state
Median home value
$883
Median rent
73.6%
Homeownership rate
15,148
Total housing units
92.3%
Occupied
7.7%
Vacant
26.4%
Renter-occupied
Social & access
96.1%
With health insurance
93.9%
With broadband internet
21.9%
Foreign-born
8.9%
Veterans (18+)
14.5%
With a disability
96.8%
Speak language other than English at home
Education
90.8%
High School+
19.9%
Bachelor's+
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Part of Indiana
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County rankings
Frequently Asked Questions
Putnam County, Indiana has a population of 37,091 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 41st-largest county in Indiana. Population density is 77 people per square mile.
The population of Putnam County has declined 0.3% since 2010 (37,903 → 37,804), a -0.02% annualized rate.
The median household income in Putnam County, Indiana is $76,182, with mean (average) household income of $89,501 and per-capita income of $34,050. 4.7% of residents live below the federal poverty level.
In Putnam County, the largest racial and ethnic groups are White (91.7%), Black or African American (3.4%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Putnam County, Indiana is 38.4 years. Residents are 47.2% female and 52.8% male.
The median home value in Putnam County is $205,800 and median monthly rent is $883. 73.6% of occupied housing units are owner-occupied. The county has 15,148 total housing units, 7.7% of which are vacant.
The largest employment sector in Putnam County, Indiana is professional, scientific, and management services, employing 24.9% of workers. The unemployment rate is 1.2%.
Indianapolis is among the largest cities associated with Putnam 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.