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ZIP Code 52231
Harper, IA, Keokuk County
Population
539
Land area
34.5sq mi
People per sq mi
16
City
Harper
ZIP 52231 and nearby ZIP codes
ZIP 52231 at a glance
- ZIP 52231 (Harper) is 73% less dense than Iowa as a whole.
- Households here earn a median of $90,893 a year, 21% more than the Iowa figure of $75,059.
- A typical owner-occupied home is valued at $242,400 (17% above Iowa) and median rent is $1,125 a month.
Housing and community stats
ZIP 52231, American Community Survey 2020-2024
Median household income
$90,893
Poverty rate
2.2%
Median home value
$242,400
Median rent
$1,125/mo
Homeownership
96.4%
Bachelor's or higher
16.5%
Median age
39.3
Average commute
19.4 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
6
ZIP Business Patterns 2023
Employees
26
$2.1M annual payroll
PPP loans
$1.6M
81 loans
Campaign donations
$4,851
2% D, 34% R, 2026 cycle
Environment and hazard risk
ZIP 52231, from FEMA, NOAA and EPA
Natural hazard risk
Very Low
Top: drought
Storm events since 1996
421
Countywide, mostly thunderstorm wind
Flood insurance policies
4
0.0% of homes, county
July high / Jan low
85° / 12°F
37.4 inches of rain a year
Health statistics
Share of adults in ZIP 52231, CDC PLACES estimates
Obesity
41.2%
U.S. 33.3% +7.9 pts
Diabetes
13.0%
U.S. 12.1% +0.9 pts
Smoking
17.8%
U.S. 12.8% +5.0 pts
Uninsured (18-64)
6.7%
U.S. 11.1% -4.4 pts
Frequently asked questions
- What city is ZIP code 52231?
- ZIP code 52231 is in Harper, IA (Keokuk County).
- What county is ZIP code 52231 in?
- ZIP code 52231 is mostly in Keokuk County, Iowa.
- How many people live in ZIP code 52231?
- About 539 people live in the 52231 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.