City · Iowa
Seymour, Iowa
Seymour, city, in Wayne County, Iowa. Seymour had 641 residents on July 1, 2025 by the Census Bureau's estimate, up 0.9% since 2020; the 2020 Census counted 634 and the ACS 2020-2024 5-year estimates put it at 594 (±122). GEOID 1971760.
Residents, July 2025 estimate
641
Census Bureau estimate (no margin published)
2020 Census count: 634 · ACS 2020-2024: 594 ±122
Median household income
$46,071
±$12,571 (90% margin)
Iowa: $75,059
Median home value
$86,800
±$16,943 (90% margin)
Iowa: $208,000
Median gross rent
$614
±$78 (90% margin)
Iowa: $972
Where is Seymour and what county is it in?
Seymour is a city in Wayne County, Iowa. It covers 2.4 square miles of land, 265 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Seymour, and is it growing?
The Census Bureau estimates that 641 people lived in Seymour on July 1, 2025, up 0.9% since 2020, slower than Iowa (+1.5%). The 2020 Census counted 634 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 594 (±122).
| Measure | Seymour | Wayne County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 594 ±122 | 6,532 | no clear change |
| Households | 280 ±46 | 2,565 | no clear change |
| Average household size | 2.12 ±0.33 | 2.50 | no clear change |
| Housing units | 341 ±52 | 3,019 | no clear change |
Seymour's population since 2000
From 810 in 2000 to 641 in 2025: down 20.9%. The 2000, 2010 and 2020 figures are census counts, each for Seymour as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Seymour?
The median resident of Seymour is 44.5 years old; 23.7% are under 18 and 25.3% are 65 or older. The largest group is non-Hispanic white residents at 89.1%, then non-Hispanic residents of two or more races at 10.9%.
| Measure | Seymour | Wayne County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 44.5 ±15.5 | 41.5 | no clear change |
| Under 18 years | 23.7% ±8.6 pts | 25.9% | – |
| 65 years and over | 25.3% ±8.3 pts | 22.6% | – |
| Male | 49.8% ±5.7 pts | 50.5% | – |
| Hispanic or Latino (any race) | 0.0% ±4.1 pts | 1.2% | – |
| White alone, not Hispanic | 89.1% ±6.8 pts | 93.7% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±4.1 pts | 0.2% | – |
| Asian alone, not Hispanic | 0.0% ±4.1 pts | 0.1% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±4.1 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±4.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 10.9% ±6.8 pts | 4.8% | – |
| Some other race alone, not Hispanic | 0.0% ±4.1 pts | 0.0% | – |
| Born outside the United States | 1.9% ±2.2 pts | 0.9% | – |
| Speak a language other than English at home (age 5+) | 1.1% ±1.3 pts | 8.2% | – |
| Civilian veterans (age 18+) | 7.1% ±3.4 pts | 6.0% | – |
| With a disability | 25.1% ±7.4 pts | 15.4% | – |
| No health insurance coverage | 3.5% ±3.0 pts | 12.8% | – |
| High school graduate or higher (age 25+) | 87.3% ±6.9 pts | 90.9% | – |
| Bachelor's degree or higher (age 25+) | 14.8% ±6.8 pts | 17.2% | no clear change |
| Graduate or professional degree (age 25+) | 2.9% ±2.0 pts | 5.0% | – |
| Lived in the same house a year earlier | 88.6% ±5.4 pts | 90.0% | – |
| Moved from another state in the past year | 1.4% ±1.9 pts | 1.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Seymour earn?
Half of Seymour's 280 households earn less than $46,071 a year (±$12,571), against $61,964 in Wayne County and $75,059 in Iowa. In 2015-2019 it was $42,235 in 2024 dollars; the margins of error cannot tell the two periods apart. 13.5% of residents live below the poverty line.
| Measure | Seymour | Wayne County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $46,071 ±$12,571 | $61,964 | no clear change |
| Mean household income | $55,623 ±$7,637 | $90,040 | – |
| Per capita income | $26,230 ±$3,415 | $36,445 | no clear change |
| People below the poverty line | 13.5% ±7.4 pts | 10.1% | −11.1 pts |
| Children under 18 below the poverty line | 11.3% ±18.2 pts | 10.6% | – |
| Households receiving SNAP | 10.0% ±6.3 pts | 10.3% | – |
| Households with a computer | 89.3% ±6.7 pts | 87.3% | – |
| Households with a broadband subscription | 71.4% ±11.8 pts | 79.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Seymour?
Owners occupy 75.0% of Seymour's occupied homes and renters 25.0%. The median owner-occupied home is valued at $86,800 by its owner (±$16,943). The median renter pays $614 a month including utilities.
| Measure | Seymour | Wayne County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $86,800 ±$16,943 | $111,300 | +$32,773 |
| Median gross rent | $614 ±$78 | $659 | no clear change |
| Renters paying 35% or more of income on rent | 28.9% ±27.7 pts | 23.6% | – |
| Median monthly owner costs, with a mortgage | $1,266 ±$331 | $1,201 | – |
| Owner-occupied homes | 75.0% ±9.1 pts | 80.9% | no clear change |
| Renter-occupied homes | 25.0% ±9.1 pts | 19.1% | – |
| Housing units | 341 ±52 | 3,019 | no clear change |
| Homeowner vacancy rate | 0.9% ±1.3 pts | 0.5% | – |
| Rental vacancy rate | 10.3% ±16.5 pts | 7.5% | – |
| Single-family detached homes | 81.2% ±8.8 pts | 83.6% | – |
| Mobile homes | 11.4% ±7.5 pts | 7.1% | – |
| Built 2020 or later | 0.0% ±7.1 pts | 0.5% | – |
| Built 2010 to 2019 | 5.3% ±3.5 pts | 9.0% | – |
| Built 1939 or earlier | 46.0% ±9.4 pts | 33.5% | – |
| Households with no vehicle | 9.6% ±7.1 pts | 6.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Seymour work and get to work?
80.3% of Seymour's workers drive alone. The average trip to work takes 25.2 minutes.
| Measure | Seymour | Wayne County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 58.0% ±8.1 pts | 61.3% | – |
| Unemployment rate | 2.9% ±3.1 pts | 2.9% | – |
| Drove alone to work | 80.3% ±8.0 pts | 75.8% | – |
| Carpooled | 8.1% ±5.9 pts | 11.0% | – |
| Public transportation | 0.0% ±9.2 pts | 0.0% | – |
| Walked | 5.8% ±4.1 pts | 5.4% | – |
| Worked from home | 4.6% ±4.5 pts | 6.2% | – |
| Mean travel time to work | 25.2 min ±6.3 | 25.4 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Seymour?
No census tract lies mostly in Seymour; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 703Wayne County | 2,328 | $58,869 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Seymour) · Census block assignment files
How does Seymour compare with other places in Iowa?
By the Census Bureau's July 2025 estimates, Seymour is the 12,201st-most populous of the 19,476 U.S. incorporated places that have one and the 389th-most populous of 939 in Iowa.
Seymour is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 389th | 939 |
Seymour's figures with every place in Iowa (CSV)
Every place in Iowa, sortable · Compare Seymour with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Seymour?
23 of the 57 figures for Seymour on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Seymour are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Seymour.