Dickinson County, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 39th-largest in Iowa
The population of Dickinson County, Iowa is 17,844 as of the 2023 American Community Survey, making it the 39th-largest county in Iowa. The median household income is $74,570, the median home value is $251,600, and the median age is 48.1.
The population of Dickinson County has grown 8.9% since 2010 (16,669 → 18,158), a +0.61% annualized rate.
17,844
Population
+0.61%
Annual growth
47
People / sq mi
$74,570
Median Income
$251,600
Median Home Value
Dickinson County covers 381 sq mi of land at 46.9 people per square mile.
About Dickinson County, IA
Dickinson County is a county in Iowa with a population of 17,844. It ranks #39 among counties in Iowa by population. The median age is 48.1, older than the national median. The population is 50.1% male and 49.9% female.
The median household income in Dickinson County is $74,570, near the US median of $74,580. 3.1% of residents live below the federal poverty level. Home values sit at a median of $251,600, with monthly rent averaging $930. The homeownership rate of 76.7% is higher than the national rate of 64.8%.
Educational attainment in Dickinson County reflects 32.3% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 10.5% of workers primarily work from home, below the national work-from-home rate of 14.2%. The average commute is 17.1 minutes each way.
Dickinson County Population History (2010-2024)
The county of Dickinson County had a population of 16,669 in 2010 and 18,158 in 2024, a 8.9% growth over 14 years. The peak was 18,158 in 2024. Average annual growth rate: 0.62%.
18,158
Population (2024)
16,669
Population (2010)
18,158
Peak (2024)
0.62%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 16,669 |
| 2011 | 16,861 |
| 2012 | 16,929 |
| 2013 | 16,883 |
| 2014 | 16,845 |
| 2015 | 17,009 |
| 2016 | 17,135 |
| 2017 | 17,167 |
| 2018 | 17,159 |
| 2019 | 17,290 |
| 2020 | 17,773 |
| 2021 | 17,876 |
| 2022 | 18,052 |
| 2023 | 18,087 |
| 2024 | 18,158 |
Race & Ethnicity
| White | 94.5% |
| Black or African American | 0.1% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.5% |
| Two or More Races | 0.0% |
Age & Sex
48.1
Median Age
49.9%
Female
50.1%
Male
27.6%
Age 65+
Age Distribution
Children (under 15): 15.7% · Seniors (65+): 27.6%
Income & Poverty
| Median household income | $74,570+$1,423 vs state |
| Mean household income | $98,855 |
| Per-capita income | $47,165 |
| Poverty rate | 3.1%-3.8% vs state |
| Unemployment rate | 1.6% |
| Employment-to-population | 62.6% |
Top Industries by Employment
The largest employment sector in Dickinson County is professional & business services, accounting for 22.5% of workers.
How residents commute
0.0%
Drive alone
1.8%
Carpool
78.1%
Public transit
10.5%
Work from home
17.1 min
Avg commute
Housing
$251,600+$55,700 vs state
Median home value
$930
Median rent
76.7%
Homeownership rate
14,060
Total housing units
61.5%
Occupied
38.5%
Vacant
23.3%
Renter-occupied
Social & access
96.3%
With health insurance
94.3%
With broadband internet
28.5%
Foreign-born
7.8%
Veterans (18+)
14.6%
With a disability
97.4%
Speak language other than English at home
Education
97.3%
High School+
32.3%
Bachelor's+
Largest cities in Iowa
Other counties in Iowa
Part of Iowa
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County rankings
Frequently Asked Questions
Dickinson County, Iowa has a population of 17,844 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 39th-largest county in Iowa. Population density is 47 people per square mile.
The population of Dickinson County has grown 8.9% since 2010 (16,669 → 18,158), a +0.61% annualized rate.
The median household income in Dickinson County, Iowa is $74,570, with mean (average) household income of $98,855 and per-capita income of $47,165. 3.1% of residents live below the federal poverty level.
In Dickinson County, the largest racial and ethnic groups are White (94.5%), Hispanic or Latino (0.5%), Black or African American (0.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Dickinson County, Iowa is 48.1 years. Residents are 49.9% female and 50.1% male.
The median home value in Dickinson County is $251,600 and median monthly rent is $930. 76.7% of occupied housing units are owner-occupied. The county has 14,060 total housing units, 38.5% of which are vacant.
The largest employment sector in Dickinson County, Iowa is professional, scientific, and management services, employing 22.5% of workers. The unemployment rate is 1.6%.
Des Moines is among the largest cities associated with Dickinson County, Iowa, with a population of 212,464.
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Statewide data for Iowa
Population, race, income, age, and trends across Iowa
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.