Denison is a city located in Crawford County, Iowa. Denison has a 2025 population of 8,286 . It is also the county seat of Crawford County . Denison is currently declining at a rate of -0.19% annually and its population has decreased by -0.92% since the most recent census, which recorded a population of 8,363 in 2020.
The average household income in Denison is $79,594 with a poverty rate of 20.15%. The median age in Denison is 34 years: 33.5 years for males, and 34.4 years for females. For every 100 females there are 95.8 males.
Data after 2023 is projected based on recent change
The racial composition of Denison includes 55.97% White, 14.91% other race, 3.33% Asian, 3.02% Black or African American, and smaller percentages for Native American and multiracial populations.
White (55.97%)
Two or more races (22.15%)
Other race (14.91%)
Asian (3.33%)
Black or African American (3.02%)
Native American (0.61%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 4,616 | 55.97% |
| Two or more races | 1,827 | 22.15% |
| Other race | 1,230 | 14.91% |
| Asian | 275 | 3.33% |
| Black or African American | 249 | 3.02% |
| Native American | 50 | 0.61% |
Married
Widowed
Divorced
Separated
Never Married
Denison's average per capita income is $46,639. Household income levels show a median of $63,850. The poverty rate stands at 20.15%.
Name | Median | Mean |
|---|---|---|
| Married Families | $101,279 | - |
| Families | $74,931 | $91,525 |
| Households | $63,850 | $79,594 |
| Non Families | $36,122 | $42,323 |
Average Income
Median Household Income
Poverty Rate