Humboldt County, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 78th-largest in Iowa
The population of Humboldt County, Iowa is 9,573 as of the 2023 American Community Survey, making it the 78th-largest county in Iowa. The median household income is $66,994, the median home value is $146,900, and the median age is 41.8.
The population of Humboldt County has declined 1.8% since 2010 (9,791 → 9,617), a -0.13% annualized rate.
9,573
Population
-0.13%
Annual growth
22
People / sq mi
$66,994
Median Income
$146,900
Median Home Value
Humboldt County covers 434 sq mi of land at 22.0 people per square mile.
About Humboldt County, IA
Humboldt County is distinguished by its share of foreign-born residents, 16.1% of the population. Humboldt County is a county in Iowa with a population of 9,573.
Household earnings are middling, with a median of $66,994 — below the US median of $78,538. The poverty rate is 10.4%, below the national 12.4%. The typical home is valued at $146,900, with typical rent around $731.
Roughly 19.3% of adults have a bachelor’s, below the national 35.0%. A solid 11.0% of workers are based at home, below the national 14.0%, and the average commute runs about 19 minutes each way.
Humboldt County Population History (2010-2024)
The county of Humboldt County had a population of 9,791 in 2010 and 9,617 in 2024, a -1.8% growth over 14 years. The peak was 9,791 in 2010. Average annual growth rate: -0.13%.
9,617
Population (2024)
9,791
Population (2010)
9,791
Peak (2010)
-0.13%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 9,791 |
| 2011 | 9,782 |
| 2012 | 9,724 |
| 2013 | 9,682 |
| 2014 | 9,641 |
| 2015 | 9,562 |
| 2016 | 9,530 |
| 2017 | 9,568 |
| 2018 | 9,520 |
| 2019 | 9,499 |
| 2020 | 9,597 |
| 2021 | 9,630 |
| 2022 | 9,545 |
| 2023 | 9,564 |
| 2024 | 9,617 |
Race & Ethnicity
| White | 91.9% |
| Black or African American | 0.3% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.8% |
| Two or More Races | 0.0% |
Age & Sex
41.8
Median Age
50.0%
Female
50.0%
Male
21.4%
Age 65+
Age Distribution
Children (under 15): 19.5% · Seniors (65+): 21.4%
Income & Poverty
| Median household income | $66,994$-6,153 vs state |
| Mean household income | $86,372 |
| Per-capita income | $38,775 |
| Poverty rate | 10.4%+3.5% vs state |
| Unemployment rate | 2.0% |
| Employment-to-population | 61.7% |
Top Industries by Employment
The largest employment sector in Humboldt County is professional & business services, accounting for 19.7% of workers.
How residents commute
0.2%
Drive alone
2.1%
Carpool
76.8%
Public transit
11.0%
Work from home
19.4 min
Avg commute
Housing
$146,900$-49,000 vs state
Median home value
$731
Median rent
75.0%
Homeownership rate
4,600
Total housing units
92.1%
Occupied
7.9%
Vacant
25.0%
Renter-occupied
Social & access
94.0%
With health insurance
92.8%
With broadband internet
16.1%
Foreign-born
7.2%
Veterans (18+)
14.7%
With a disability
94.8%
Speak language other than English at home
Education
93.6%
High School+
19.3%
Bachelor's+
Largest cities in Iowa
Other counties in Iowa
Part of Iowa
Metro areas in Iowa
County rankings
Frequently Asked Questions
Humboldt County, Iowa has a population of 9,573 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 78th-largest county in Iowa. Population density is 22 people per square mile.
The population of Humboldt County has declined 1.8% since 2010 (9,791 → 9,617), a -0.13% annualized rate.
The median household income in Humboldt County, Iowa is $66,994, with mean (average) household income of $86,372 and per-capita income of $38,775. 10.4% of residents live below the federal poverty level.
In Humboldt County, the largest racial and ethnic groups are White (91.9%), Hispanic or Latino (0.8%), Black or African American (0.3%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Humboldt County, Iowa is 41.8 years. Residents are 50.0% female and 50.0% male.
The median home value in Humboldt County is $146,900 and median monthly rent is $731. 75.0% of occupied housing units are owner-occupied. The county has 4,600 total housing units, 7.9% of which are vacant.
The largest employment sector in Humboldt County, Iowa is professional, scientific, and management services, employing 19.7% of workers. The unemployment rate is 2.0%.
Des Moines is among the largest cities associated with Humboldt County, Iowa, with a population of 212,464.
Humboldt County, IA Climate
Humboldt County, IA has an average annual temperature of 8°C (46°F) and receives about 800 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
8°C
Avg Temp
800
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -10° / 14° | 19 mm |
| February | -6° / 20° | 19 mm |
| March | 1° / 33° | 50 mm |
| April | 8° / 47° | 77 mm |
| May | 15° / 60° | 100 mm |
| June | 21° / 69° | 117 mm |
| July | 23° / 73° | 107 mm |
| August | 21° / 71° | 99 mm |
| September | 17° / 63° | 83 mm |
| October | 10° / 51° | 60 mm |
| November | 1° / 35° | 43 mm |
| December | -6° / 21° | 26 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 Humboldt County, IA
The most comfortable months to visit Humboldt County, IA are typically August, June and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -15°C low). June is usually the wettest month.
Where to stay near Humboldt County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.