City · Iowa
Treynor, Iowa
Treynor, city, in Pottawattamie County, Iowa. Treynor had 1,088 residents on July 1, 2025 by the Census Bureau's estimate, up 6.3% since 2020; the 2020 Census counted 1,032 and the ACS 2020-2024 5-year estimates put it at 1,126 (±187). GEOID 1978825.
Residents, July 2025 estimate
1,088
Census Bureau estimate (no margin published)
2020 Census count: 1,032 · ACS 2020-2024: 1,126 ±187
Median household income
$121,696
±$32,770 (90% margin)
Iowa: $75,059
Median home value
$263,500
±$32,829 (90% margin)
Iowa: $208,000
Median gross rent
$1,122
±$76 (90% margin)
Iowa: $972
Where is Treynor and what county is it in?
Treynor is a city in Pottawattamie County, Iowa. It covers 0.7 square miles of land, 1,588 residents per square mile in 2020.
Treynor is in the Omaha, NE-IA metropolitan statistical area, which takes in 8 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Treynor, and is it growing?
The Census Bureau estimates that 1,088 people lived in Treynor on July 1, 2025, up 6.3% since 2020, faster than Iowa (+1.5%). The 2020 Census counted 1,032 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,126 (±187).
| Measure | Treynor | Pottawattamie County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,126 ±187 | 93,424 | no clear change |
| Households | 427 ±72 | 37,642 | no clear change |
| Average household size | 2.64 ±0.27 | 2.41 | no clear change |
| Housing units | 455 ±74 | 40,083 | no clear change |
Treynor's population since 2000
From 950 in 2000 to 1,088 in 2025: up 14.5%. The 2000, 2010 and 2020 figures are census counts, each for Treynor 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 Treynor?
The median resident of Treynor is 37.7 years old; 29.6% are under 18 and 14.0% are 65 or older. The largest group is non-Hispanic white residents at 90.9%, then Hispanic or Latino residents (of any race) at 5.2%.
| Measure | Treynor | Pottawattamie County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 37.7 ±7.1 | 40.1 | no clear change |
| Under 18 years | 29.6% ±5.5 pts | 22.9% | – |
| 65 years and over | 14.0% ±4.0 pts | 18.7% | – |
| Male | 53.5% ±4.8 pts | 49.5% | – |
| Hispanic or Latino (any race) | 5.2% ±3.9 pts | 9.1% | – |
| White alone, not Hispanic | 90.9% ±5.5 pts | 84.5% | −6.6 pts |
| Black or African American alone, not Hispanic | 0.7% ±1.1 pts | 1.8% | – |
| Asian alone, not Hispanic | 0.0% ±2.2 pts | 0.9% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±2.2 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±2.2 pts | 0.2% | – |
| Two or more races, not Hispanic | 3.1% ±3.4 pts | 3.0% | – |
| Some other race alone, not Hispanic | 0.0% ±2.2 pts | 0.3% | – |
| Born outside the United States | 0.7% ±1.1 pts | 4.0% | – |
| Speak a language other than English at home (age 5+) | 0.0% ±2.5 pts | 6.9% | – |
| Civilian veterans (age 18+) | 5.2% ±2.7 pts | 8.4% | – |
| With a disability | 5.5% ±2.2 pts | 15.7% | – |
| No health insurance coverage | 0.0% ±2.2 pts | 5.0% | – |
| High school graduate or higher (age 25+) | 99.7% ±0.4 pts | 90.7% | – |
| Bachelor's degree or higher (age 25+) | 44.4% ±7.9 pts | 23.6% | no clear change |
| Graduate or professional degree (age 25+) | 20.1% ±6.8 pts | 7.9% | – |
| Lived in the same house a year earlier | 96.3% ±3.2 pts | 89.8% | – |
| Moved from another state in the past year | 1.4% ±1.8 pts | 2.6% | – |
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 Treynor earn?
Half of Treynor's 427 households earn less than $121,696 a year (±$32,770), against $73,602 in Pottawattamie County and $75,059 in Iowa. In 2015-2019 it was $98,798 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Treynor | Pottawattamie County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $121,696 ±$32,770 | $73,602 | no clear change |
| Mean household income | $130,391 ±$21,651 | $91,780 | – |
| Per capita income | $48,717 ±$8,602 | $37,477 | no clear change |
| People below the poverty line | 5.1% ±4.2 pts | 12.1% | – |
| Children under 18 below the poverty line | 5.5% ±6.3 pts | 17.2% | – |
| Households receiving SNAP | 8.4% ±7.9 pts | 9.8% | – |
| Households with a computer | 98.8% ±1.3 pts | 93.4% | – |
| Households with a broadband subscription | 94.8% ±4.2 pts | 86.2% | – |
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 Treynor?
Owners occupy 79.6% of Treynor's occupied homes and renters 20.4%. The median owner-occupied home is valued at $263,500 by its owner (±$32,829). The median renter pays $1,122 a month including utilities.
| Measure | Treynor | Pottawattamie County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $263,500 ±$32,829 | $195,700 | +$63,512 |
| Median gross rent | $1,122 ±$76 | $1,018 | no clear change |
| Renters paying 35% or more of income on rent | 18.5% ±18.3 pts | 33.6% | – |
| Median monthly owner costs, with a mortgage | $1,696 ±$141 | $1,495 | – |
| Owner-occupied homes | 79.6% ±9.7 pts | 69.9% | no clear change |
| Renter-occupied homes | 20.4% ±9.7 pts | 30.1% | – |
| Housing units | 455 ±74 | 40,083 | no clear change |
| Homeowner vacancy rate | 0.0% ±7.1 pts | 0.5% | – |
| Rental vacancy rate | 0.0% ±24.6 pts | 1.9% | – |
| Single-family detached homes | 92.5% ±4.8 pts | 75.9% | – |
| Mobile homes | 0.0% ±5.3 pts | 3.5% | – |
| Built 2020 or later | 7.9% ±6.2 pts | 0.7% | – |
| Built 2010 to 2019 | 7.5% ±7.6 pts | 5.6% | – |
| Built 1939 or earlier | 9.9% ±8.0 pts | 25.8% | – |
| Households with no vehicle | 0.7% ±1.0 pts | 6.3% | – |
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 many new homes is Treynor building?
Builders took permits for 9 new housing units in Treynor in 2025 (9 in single-family houses), 8.3 per 1,000 residents against 4.2 across Iowa.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Treynor work and get to work?
83.5% of Treynor's workers drive alone and 10.1% work from home. The average trip to work takes 24.8 minutes.
| Measure | Treynor | Pottawattamie County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 75.4% ±5.1 pts | 63.4% | – |
| Unemployment rate | 4.9% ±6.0 pts | 3.8% | – |
| Drove alone to work | 83.5% ±6.0 pts | 79.8% | – |
| Carpooled | 2.5% ±2.0 pts | 6.7% | – |
| Public transportation | 0.0% ±4.3 pts | 0.6% | – |
| Walked | 3.0% ±3.1 pts | 1.8% | – |
| Worked from home | 10.1% ±4.2 pts | 9.8% | +5.9 pts |
| Mean travel time to work | 24.8 min ±3.2 | 19.8 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 Treynor?
No census tract lies mostly in Treynor; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 216.02Pottawattamie County | 2,668 | $120,745 |
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 Treynor) · Census block assignment files
How does Treynor compare with other places in Iowa?
By the Census Bureau's July 2025 estimates, Treynor is the 9,945th-most populous of the 19,476 U.S. incorporated places that have one and the 260th-most populous of 939 in Iowa.
Treynor ranks 12th of 279 places in Iowa with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 260th | 939 |
| Growth 2020-2025 (PEP) | 36th | 275 |
| Residents per square mile | 41st | 279 |
| Median household income | 12th | 279 |
| Per capita income | 30th | 279 |
| Median home value | 49th | 279 |
| Median gross rent | 29th | 266 |
| Bachelor's degree or higher | 27th | 279 |
| Median age | 186th | 279 |
| Owner-occupied share | 78th | 279 |
| Work from home | 98th | 221 |
| Travel time to work | 45th | 279 |
Treynor's figures with every place in Iowa (CSV)
Every place in Iowa, sortable · Compare Treynor 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 Treynor?
26 of the 57 figures for Treynor 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 Treynor 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 Treynor.