Cass County, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 40th-largest in Indiana
The population of Cass County, Indiana is 37,703 as of the 2023 American Community Survey, making it the 40th-largest county in Indiana. The median household income is $56,525, the median home value is $118,700, and the median age is 41.1.
The population of Cass County has declined 3.7% since 2010 (38,985 → 37,559), a -0.27% annualized rate.
37,703
Population
-0.27%
Annual growth
91
People / sq mi
$56,525
Median Income
$118,700
Median Home Value
Cass County covers 412 sq mi of land at 91.5 people per square mile.
About Cass County, IN
Remote work is unusually rare in Cass County: 3.4% of workers primarily work from home, below the 14.0% national rate. Cass County is a county in Indiana with a population of 37,703. It ranks #40 among counties in Indiana by population.
Median household income is $56,525, below the US median of $78,538. The poverty rate is 9.2%, below the national 12.4%. Homes are comparatively cheap — a median value of $118,700, with typical rent around $778.
Degree attainment is on the lower side for US counties: 15.6% of adults hold a bachelor’s degree, below the national 35.0%. Almost everyone commutes — only 3.4% work from home, below the national 14.0%, and the average commute runs about 21 minutes each way.
Cass County Population History (2010-2024)
The county of Cass County had a population of 38,985 in 2010 and 37,559 in 2024, a -3.7% growth over 14 years. The peak was 38,985 in 2010. Average annual growth rate: -0.26%.
37,559
Population (2024)
38,985
Population (2010)
38,985
Peak (2010)
-0.26%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 38,985 |
| 2011 | 38,917 |
| 2012 | 38,771 |
| 2013 | 38,580 |
| 2014 | 38,482 |
| 2015 | 38,079 |
| 2016 | 37,927 |
| 2017 | 37,827 |
| 2018 | 37,885 |
| 2019 | 37,610 |
| 2020 | 37,794 |
| 2021 | 37,573 |
| 2022 | 37,670 |
| 2023 | 37,802 |
| 2024 | 37,559 |
Race & Ethnicity
| White | 80.9% |
| Black or African American | 1.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.6% |
| Two or More Races | 0.0% |
Age & Sex
41.1
Median Age
50.0%
Female
50.0%
Male
18.1%
Age 65+
Age Distribution
Children (under 15): 18.7% · Seniors (65+): 18.1%
Income & Poverty
| Median household income | $56,525$-13,526 vs state |
| Mean household income | $70,904 |
| Per-capita income | $29,370 |
| Poverty rate | 9.2%+0.8% vs state |
| Unemployment rate | 2.1% |
| Employment-to-population | 60.5% |
Top Industries by Employment
The largest employment sector in Cass County is manufacturing, accounting for 27.4% of workers.
How residents commute
0.2%
Drive alone
1.2%
Carpool
81.8%
Public transit
3.4%
Work from home
21.4 min
Avg commute
Housing
$118,700$-82,900 vs state
Median home value
$778
Median rent
75.3%
Homeownership rate
16,389
Total housing units
91.1%
Occupied
8.9%
Vacant
24.7%
Renter-occupied
Social & access
93.1%
With health insurance
92.0%
With broadband internet
19.2%
Foreign-born
7.5%
Veterans (18+)
16.8%
With a disability
84.0%
Speak language other than English at home
Education
85.8%
High School+
15.6%
Bachelor's+
Largest cities in Indiana
Other counties in Indiana
Part of Indiana
Metro areas in Indiana
County rankings
Frequently Asked Questions
Cass County, Indiana has a population of 37,703 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 40th-largest county in Indiana. Population density is 91 people per square mile.
The population of Cass County has declined 3.7% since 2010 (38,985 → 37,559), a -0.27% annualized rate.
The median household income in Cass County, Indiana is $56,525, with mean (average) household income of $70,904 and per-capita income of $29,370. 9.2% of residents live below the federal poverty level.
In Cass County, the largest racial and ethnic groups are White (80.9%), Hispanic or Latino (1.6%), Black or African American (1.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Cass County, Indiana is 41.1 years. Residents are 50.0% female and 50.0% male.
The median home value in Cass County is $118,700 and median monthly rent is $778. 75.3% of occupied housing units are owner-occupied. The county has 16,389 total housing units, 8.9% of which are vacant.
The largest employment sector in Cass County, Indiana is manufacturing, employing 27.4% of workers. The unemployment rate is 2.1%.
Indianapolis is among the largest cities associated with Cass County, Indiana, with a population of 882,043.
Cass County, IN Climate
Cass County, IN has an average annual temperature of 10.1°C (50°F) and receives about 954 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10.1°C
Avg Temp
954
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -5° / 23° | 49 mm |
| February | -2° / 28° | 45 mm |
| March | 4° / 38° | 71 mm |
| April | 10° / 49° | 94 mm |
| May | 16° / 61° | 99 mm |
| June | 21° / 70° | 97 mm |
| July | 23° / 74° | 100 mm |
| August | 22° / 71° | 93 mm |
| September | 18° / 65° | 84 mm |
| October | 12° / 53° | 71 mm |
| November | 5° / 41° | 79 mm |
| December | -1° / 29° | 72 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 Cass County, IN
The most comfortable months to visit Cass County, IN are typically June, August and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -9°C low). July is usually the wettest month.
Where to stay near Cass County
Visiting or relocating to Cass County, IN? Compare hotels and short-term rentals across the county — live availability and prices.
Top-rated places to stay near Cass County
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a move to Cass County?
Get relocation and cost-of-living insights for Cass County, IN by email. No spam, unsubscribe anytime.
More from Indiana
Population 971,822
Population 498,990
Population 388,791
Population 357,176
Full rankings of Indiana counties
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.