County ProfileIA
Decatur County
Population: 7,645 · 8 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
7,645
People
Median age
36.1
Housing
Total households
3,055
Income
Median household income
$59,044
Housing
Total housing units
3,659
Employment
Employment rate
61.1%
Education
Bachelor’s degree or higher
23.5%
Healthcare
Insured population
92.4%
County details
Local time 01:09:54(CT)| Name | Decatur |
|---|---|
| Total ZIP codes | 8total |
| ZIP codes (by type) | 8 Standard |
| Area code | 641 |
| Timezone | Central Time (CT) |
| Coordinates | 40.7363787, -93.7845799 |
| Land area | 531.9 sq miles(1,377.6 km²) |
Map of Decatur county, Iowa with ZIP codes
Cities and Communities in Decatur County
Compare the largest cities in Decatur County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Lamoni | 1,969 | $54,554 | 1ZIPs |
| Leon | 1,822 | $54,231 | 1ZIPs |
| Decatur | 318 | $45,781 | 1ZIPs |
| Grand River | 196 | $40,156 | 1ZIPs |
| Davis City | 179 | $36,833 | 1ZIPs |
| Van Wert | 178 | $74,375 | 1ZIPs |
| Garden Grove | 174 | $34,000 | 1ZIPs |
| Weldon | 136 | $51,875 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Decatur County
Review the most populated postal areas across Decatur County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS