Henry County, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 33rd-largest in Iowa
The population of Henry County, Iowa is 20,228 as of the 2023 American Community Survey, making it the 33rd-largest county in Iowa. The median household income is $64,604, the median home value is $148,600, and the median age is 40.5.
The population of Henry County has declined 3.7% since 2010 (20,112 → 19,361), a -0.27% annualized rate.
20,228
Population
-0.27%
Annual growth
47
People / sq mi
$64,604
Median Income
$148,600
Median Home Value
Henry County covers 434 sq mi of land at 46.6 people per square mile.
About Henry County, IA
Henry County is a county in Iowa with a population of 20,228. It ranks #33 among counties in Iowa by population.
The typical household here earns about $64,604, below the US median of $78,538. The poverty rate is 8.4%, below the national 12.4%. Homes carry a median value of $148,600, with typical rent around $770.
Roughly 22.5% of adults have a bachelor’s, below the national 35.0%. Remote work is below the national 14.0% at 7.1%, and the average commute runs about 19 minutes each way.
Henry County Population History (2010-2024)
The county of Henry County had a population of 20,112 in 2010 and 19,361 in 2024, a -3.7% growth over 14 years. The peak was 20,447 in 2020. Average annual growth rate: -0.26%.
19,361
Population (2024)
20,112
Population (2010)
20,447
Peak (2020)
-0.26%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 20,112 |
| 2011 | 20,252 |
| 2012 | 20,003 |
| 2013 | 20,029 |
| 2014 | 19,846 |
| 2015 | 19,862 |
| 2016 | 19,842 |
| 2017 | 20,056 |
| 2018 | 20,015 |
| 2019 | 19,835 |
| 2020 | 20,447 |
| 2021 | 20,387 |
| 2022 | 20,253 |
| 2023 | 19,573 |
| 2024 | 19,361 |
Race & Ethnicity
| White | 88.0% |
| Black or African American | 2.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 2.5% |
| Two or More Races | 0.0% |
Age & Sex
40.5
Median Age
47.2%
Female
52.8%
Male
19.4%
Age 65+
Age Distribution
Children (under 15): 17.5% · Seniors (65+): 19.4%
Income & Poverty
| Median household income | $64,604$-8,543 vs state |
| Mean household income | $77,833 |
| Per-capita income | $31,084 |
| Poverty rate | 8.4%+1.5% vs state |
| Unemployment rate | 1.3% |
| Employment-to-population | 57.6% |
Top Industries by Employment
The largest employment sector in Henry County is professional & business services, accounting for 26.0% of workers.
How residents commute
0.0%
Drive alone
1.1%
Carpool
80.7%
Public transit
7.1%
Work from home
18.8 min
Avg commute
Housing
$148,600$-47,300 vs state
Median home value
$770
Median rent
74.0%
Homeownership rate
8,442
Total housing units
90.2%
Occupied
9.8%
Vacant
26.0%
Renter-occupied
Social & access
95.5%
With health insurance
92.6%
With broadband internet
22.8%
Foreign-born
7.2%
Veterans (18+)
15.0%
With a disability
95.0%
Speak language other than English at home
Education
91.4%
High School+
22.5%
Bachelor's+
Largest cities in Iowa
Other counties in Iowa
Part of Iowa
Metro areas in Iowa
County rankings
Frequently Asked Questions
Henry County, Iowa has a population of 20,228 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 33rd-largest county in Iowa. Population density is 47 people per square mile.
The population of Henry County has declined 3.7% since 2010 (20,112 → 19,361), a -0.27% annualized rate.
The median household income in Henry County, Iowa is $64,604, with mean (average) household income of $77,833 and per-capita income of $31,084. 8.4% of residents live below the federal poverty level.
In Henry County, the largest racial and ethnic groups are White (88.0%), Black or African American (2.7%), Hispanic or Latino (2.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Henry County, Iowa is 40.5 years. Residents are 47.2% female and 52.8% male.
The median home value in Henry County is $148,600 and median monthly rent is $770. 74.0% of occupied housing units are owner-occupied. The county has 8,442 total housing units, 9.8% of which are vacant.
The largest employment sector in Henry County, Iowa is professional, scientific, and management services, employing 26.0% of workers. The unemployment rate is 1.3%.
Des Moines is among the largest cities associated with Henry County, Iowa, with a population of 212,464.
Henry County, IA Climate
Henry County, IA has an average annual temperature of 10.4°C (51°F) and receives about 938 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
10.4°C
Avg Temp
938
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -6° / 22° | 33 mm |
| February | -2° / 28° | 31 mm |
| March | 4° / 39° | 67 mm |
| April | 11° / 51° | 86 mm |
| May | 17° / 62° | 109 mm |
| June | 22° / 71° | 103 mm |
| July | 24° / 76° | 114 mm |
| August | 23° / 73° | 106 mm |
| September | 19° / 65° | 111 mm |
| October | 12° / 54° | 68 mm |
| November | 4° / 40° | 64 mm |
| December | -3° / 27° | 46 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Henry County, IA
The most comfortable months to visit Henry County, IA are typically June, August and September, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 30°C high). The coldest is January (near -10°C low). July is usually the wettest month.
Where to stay near Henry County
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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.