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
The poverty rate is what most separates Dickinson County from the typical county: 3.1% of residents live below the federal poverty line, against 12.4% nationally. Dickinson County is a county in Iowa with a population of 17,844. It ranks #39 among counties in Iowa by population.
Median household income is $74,570, below the US median of $78,538. Hardship is rare relative to US counties: a poverty rate of just 3.1%, below the national 12.4%. A typical home is worth $251,600, with typical rent around $930.
College attainment is above the local norm at 32.3%, below the national 35.0%. Remote work is on the higher side at 10.5%, below the national 14.0%, and the average commute runs about 17 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.