Denison is home to 8,260 people in Iowa. 18% of adults hold a bachelor's degree, below the 36% national rate. 31% of residents were born outside the United States. The average commute runs 13 minutes. Home values have more than doubled since 2000, reaching $150,200. The median age is 34.3, younger than the US median of 38.9.
At a glance
Lower income
median household income $65,684, below the US median
US median: $82,259
Younger
median age 34.3
US median: 38.9
Less educated
18% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Denison
What changed most since 1990
Hispanic share1.8% → 48.8%(+46.9 pts)US over the same years: +9.9 pts
White share95.9% → 42.9%(−53.0 pts)US over the same years: −17.8 pts
Adults with a bachelor's degree12.1% → 17.5%(+5.5 pts)US over the same years: +15.3 pts
Its weight in Crawford County
Denison's population equals 51% of Crawford County's. Its number of foreign-born residents equals 90% of the county's. Its number of veterans equals 34% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)18.5%(51)
US avg: 26.4%
Gulf War (1990s)17.8%(49)
US avg: 24.3%
Vietnam era46%(127)
US avg: 33.1%
Korean War0%(0)
US avg: 4.5%
World War II3.3%(9)
US avg: 1%
Share of the 276 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Denison, decade by decade
Denison population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
6,604
$51,719
$102,483
12.1%
10.0
2000
7,339
$60,455
$130,248
13.6%
42.1
2010
8,298
$62,973
$142,419
18.4%
66.5
2020
8,373
$65,217
$120,598
13.5%
72.6
2024
8,260
$65,684
$150,200
17.5%
72.0
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
