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Denison, IA
City in Crawford County, Iowa. ZIP codes: 51442.
Population
8,260
Land area
6.5sq mi
People per sq mi
1,263
ZIP codes
1
Denison and its ZIP codes
Denison at a glance
- Denison is about 22 times as dense as Iowa as a whole.
- By population, it ranks 49th among 1,017 cities and towns in Iowa.
- The median household income is $65,684, 12% below the Iowa median of $75,059.
- A typical owner-occupied home is valued at $150,200 (28% below Iowa) and median rent is $731 a month.
Local data for Denison, IA
Counts from official public data
Housing and community stats
Denison, IA, American Community Survey 2020-2024
Median household income
$65,684
Poverty rate
17.5%
Median home value
$150,200
Median rent
$731/mo
Homeownership
71.3%
Bachelor's or higher
17.5%
Median age
34.3
Average commute
12.7 min
Largest reported origins and ancestries: Mexican Americans (2,001), German Americans (1,785), Guatemalan Americans (974).
Economy and federal money
Jobs, pay, income and spending are for Crawford County. PPP loans are for Denison.
Unemployment rate
4.1%
Aug 2026, -0.1 pts in a year
Average annual pay
$55,851
6,449 jobs, 2025
Income per person
$56,214
BEA, 2024
Federal spending
$121M
FY 2026, $7,324 per person
PPP loans
$27.59M
548 loans, 3,257 jobs reported
How people get to work
Denison, IA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone70.3%
- Carpooled17.8%
- Public transit3.5%
- Walked2.7%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other1.3%
- Worked from home4.3%
Average one-way commute: 12.7 minutes for people who do not work from home.
Environment and hazard risk
Denison, IA, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: drought
Storm events since 1996
544
Countywide, mostly thunderstorm wind
Flood insurance policies
2
0.0% of homes, county
July high / Jan low
83° / 10°F
33.6 inches of rain a year
Hazards, floods and storm historyCheck a flood zone4 historic places
Health statistics
Share of adults in Denison, IA, CDC PLACES estimates
Obesity
44.3%
U.S. 33.3% +11.0 pts
Diabetes
14.8%
U.S. 12.1% +2.7 pts
Smoking
17.4%
U.S. 12.8% +4.6 pts
Uninsured (18-64)
19.2%
U.S. 11.1% +8.1 pts
ZIP codes in Denison
1 in or overlapping Denison. Population shown
Cities near Denison
| Name | Distance | Land area (sq mi) |
|---|---|---|
| DeloitCity | 6.3 mi | 0.4 |
| Buck GroveCity | 6.6 mi | 0.4 |
| ArionCity | 7 mi | 0.5 |
| VailCity | 8.6 mi | 0.6 |
| Dow CityCity | 9.2 mi | 0.3 |
| ManillaCity | 9.9 mi | 1.1 |
| SchleswigCity | 11 mi | 1.2 |
| DefianceCity | 13 mi | 0.4 |
| Charter OakCity | 13 mi | 0.5 |
| KironCity | 13 mi | 0.2 |
| AspinwallCity | 13 mi | 0.2 |
| WestsideCity | 14 mi | 1.5 |
| RickettsCity | 14 mi | 0.2 |
| EarlingCity | 16 mi | 0.6 |
| ManningCity | 16 mi | 2.5 |
| DunlapCity | 17 mi | 1.2 |
Frequently asked questions
- What county is Denison, IA in?
- Denison is in Crawford County, Iowa.
- What ZIP codes are in Denison, IA?
- ZIP codes in or overlapping Denison include 51442.
- What is the population of Denison, IA?
- About 8,260 people live in Denison, based on American Community Survey 5-year estimates.
- What cities are near Denison?
- Nearby places include Deloit (6.3 mi), Buck Grove (6.6 mi), Arion (7 mi), Vail (8.6 mi), Dow City (9.2 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023