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ZIP Code 51535
Griswold, IA, Cass County
Population
1,697
Land area
135.3sq mi
People per sq mi
13
City
Griswold
ZIP 51535 and nearby ZIP codes
ZIP 51535 at a glance
- ZIP 51535 (Griswold) is 78% less dense than Iowa as a whole.
- The median household income is $76,371, close to the Iowa median.
- A typical owner-occupied home is valued at $152,300 (27% below Iowa) and median rent is $950 a month.
Local data for ZIP 51535
Counts from official public data
Housing and community stats
ZIP 51535, American Community Survey 2020-2024
Median household income
$76,371
Poverty rate
7.9%
Median home value
$152,300
Median rent
$950/mo
Homeownership
78.6%
Bachelor's or higher
22.6%
Median age
50.4
Average commute
23.3 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
49
ZIP Business Patterns 2023
Employees
235
$10.6M annual payroll
PPP loans
$4.2M
203 loans
Campaign donations
$5,695
1% D, 58% R, 2026 cycle
Environment and hazard risk
ZIP 51535, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: drought
Storm events since 1996
642
Countywide, mostly thunderstorm wind
Flood insurance policies
19
0.3% of homes, county
July high / Jan low
85° / 12°F
36.4 inches of rain a year
Health statistics
Share of adults in ZIP 51535, CDC PLACES estimates
Obesity
38.1%
U.S. 33.3% +4.8 pts
Diabetes
12.4%
U.S. 12.1% about the same
Smoking
15.2%
U.S. 12.8% +2.4 pts
Uninsured (18-64)
6.1%
U.S. 11.1% -5.0 pts
Frequently asked questions
- What city is ZIP code 51535?
- ZIP code 51535 is in Griswold, IA (Cass County).
- What county is ZIP code 51535 in?
- ZIP code 51535 is mostly in Cass County, Iowa.
- How many people live in ZIP code 51535?
- About 1,697 people live in the 51535 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.