Seymour, Indiana Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Seymour, Indiana is 21,536 as of the 2023 American Community Survey, making it the 48th-largest city in Indiana. The median household income is $63,388, the median home value is $153,300, and the median age is 33.3.
The population has grown 24.1% since 2010 (18,148 → 22,524).
21,536
Population
1622
People / sq mi
$63,388
Median Income
$153,300
Median Home Value
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Seymour covers 13.3 sq mi of land at 1622 people per square mile.
About Seymour, IN
What sets Seymour apart is where people work — remote work is unusually rare here, at 2.9% versus 14.0% nationally. With 21,536 residents, Seymour is a city in Indiana. It ranks #48 among cities in Indiana by population.
Earnings trail the nation, with the median household making $63,388, below the US median of $78,538. The poverty rate is 10.6%, below the national 12.4%. Homes are comparatively cheap — a median value of $153,300, with typical rent around $954.
College attainment is 19.7%, below the national 35.0%. Home-based work is uncommon, at 2.9%, below the national 14.0%, and the average commute runs about 18 minutes each way.
Seymour city Population History (2010-2024)
The city of Seymour city had a population of 18,148 in 2010 and 22,524 in 2024, a 24.1% growth over 14 years. The peak was 22,524 in 2024. Average annual growth rate: 1.58%.
22,524
Population (2024)
18,148
Population (2010)
22,524
Peak (2024)
1.58%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 18,148 |
| 2011 | 18,340 |
| 2012 | 18,427 |
| 2013 | 18,732 |
| 2014 | 18,960 |
| 2015 | 19,194 |
| 2016 | 19,388 |
| 2017 | 19,537 |
| 2018 | 19,744 |
| 2019 | 19,959 |
| 2020 | 22,058 |
| 2021 | 22,005 |
| 2022 | 22,082 |
| 2023 | 22,242 |
| 2024 | 22,524 |
Race & Ethnicity
| White | 68.4% |
| Black or African American | 2.0% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 3.4% |
| Two or More Races | 0.1% |
Economy & Income
$63,388
Median Household Income
$28,754
Per Capita Income
10.6%
Poverty Rate
1.4%
Unemployment Rate
Housing
$153,300
Median Home Value
$954
Median Rent
57.1%
Owner-Occupied
Education
84.4%
High School+
19.7%
Bachelor's+
Commute
0.0%
Drive Alone
80.3%
Public Transit
2.9%
Work From Home
17.7 min
Avg Commute
Community Profile
22.0%
Foreign Born
79.3%
Non-English at Home
6.2%
Veterans
12.9%
With Disability
86.4%
Health Insurance
88.3%
Internet Access
Employment by Industry
| Manufacturing | 36.2% |
| Professional, Scientific & Management | 16.3% |
| Education, Health Care & Social Services | 8.2% |
| Retail Trade | 5.7% |
| Construction | 5.6% |
| Finance, Insurance & Real Estate | 4.9% |
| Arts, Entertainment & Food Services | 3.1% |
| Agriculture & Mining | 2.3% |
| Public Administration | 1.7% |
| Information | 1.6% |
| Transportation & Warehousing | 0.7% |
Largest cities in Indiana
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City rankings
Frequently Asked Questions
Seymour, Indiana has a population of 21,536 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 48th-largest city in Indiana.
The median household income in Seymour, Indiana is $63,388, with 10.6% of residents living below the federal poverty level.
The median home value in Seymour, Indiana is $153,300, with median monthly rent at $954 and a homeownership rate of 57.1%.
The median age in Seymour, Indiana is 33.3 years. The population is 50.5% male and 49.5% female.
The population has grown 24.1% since 2010 (18,148 → 22,524).
Seymour city, IN Climate
Seymour city, IN has an average annual temperature of 12.1°C (54°F) and receives about 1127 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
12.1°C
Avg Temp
1127
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -2° / 29° | 73 mm |
| February | 0° / 33° | 69 mm |
| March | 6° / 43° | 99 mm |
| April | 12° / 53° | 116 mm |
| May | 18° / 64° | 121 mm |
| June | 22° / 72° | 98 mm |
| July | 24° / 76° | 108 mm |
| August | 23° / 74° | 104 mm |
| September | 20° / 67° | 77 mm |
| October | 13° / 56° | 79 mm |
| November | 7° / 44° | 98 mm |
| December | 1° / 34° | 85 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 Seymour city, IN
The most comfortable months to visit Seymour city, IN are typically September, June 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 -7°C low). May is usually the wettest month.
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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.