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Calhoun County, IA
12 cities and towns and 10 ZIP codes in Calhoun County, Iowa.
Population
9,803
Land area
570sq mi
People per sq mi
17
ZIP codes
10
Cities and towns in Calhoun County
Calhoun County at a glance
- Calhoun County is 70% less dense than Iowa as a whole.
- Households here earn a median of $64,964 a year, 13% less than the Iowa figure of $75,059.
- A typical owner-occupied home is valued at $118,800 (43% below Iowa) and median rent is $723 a month.
- The biggest population centers are Rockwell City (2,401), Lake City (1,693) and Manson (1,645).
Local data for Calhoun County, IA
Counts from official public data
Housing and community stats
Calhoun County, IA, American Community Survey 2020-2024
Median household income
$64,964
Poverty rate
9.3%
Median home value
$118,800
Prices +5.2% in a year
Median rent
$723/mo
Homeownership
80.5%
Bachelor's or higher
21.8%
Median age
42.8
Average commute
22.3 min
Largest reported origins and ancestries: German Americans (3,526), Irish Americans (1,227), Swedish Americans (375).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
2.6%
Sep 2026, +0.2 pts in a year
Average annual pay
$50,275
2,741 jobs, 2025
Income per person
$63,019
BEA, 2024
Federal spending
$76.1M
FY 2026, $7,664 per person
PPP loans
$29.3M
1,260 loans, 3,113 jobs reported
Campaign donations
$25.5K
Itemized, 2026 cycle
How people get to work
Calhoun County, IA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone78.8%
- Carpooled8.3%
- Public transit0.2%
- Walked3.4%
- Bicycle0.6%
- Taxi, ride-hailing, motorcycle or other1.0%
- Worked from home7.6%
Average one-way commute: 22.3 minutes for people who do not work from home.
Environment and hazard risk
Calhoun County, IA, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: drought
Storm events since 1996
565
Most often hail
Flood insurance policies
3
0.1% of homes, county
July high / Jan low
83° / 8°F
33.8 inches of rain a year
Hazards, floods and storm historyCheck a flood zone12 historic places
Health statistics
Share of adults in Calhoun County, IA, CDC PLACES estimates
Obesity
39.8%
U.S. 33.3% +6.5 pts
Diabetes
12.3%
U.S. 12.1% about the same
Smoking
15.6%
U.S. 12.8% +2.8 pts
Uninsured (18-64)
7.1%
U.S. 11.1% -4.0 pts
Cities, towns and ZIP codes in Calhoun County
Population shown
Frequently asked questions
- What is the largest city in Calhoun County, IA?
- Rockwell City is the largest city or town in Calhoun County, with about 2,401 residents.
- How many ZIP codes are in Calhoun County?
- Calhoun County includes 10 ZIP Code Tabulation Areas, including 50538, 50551, 50552, 50561, 50563.
- What is the population of Calhoun County, IA?
- About 9,803 people live in Calhoun County, based on American Community Survey 5-year estimates.
- What counties border Calhoun County?
- Calhoun County borders Webster County, Buena Vista County, Carroll County, Sac County, Greene County, Pocahontas County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023