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Griswold, IA
City in Cass County, Iowa. ZIP codes: 51535.
Population
975
Land area
0.6sq mi
People per sq mi
1,601
ZIP codes
1
Griswold and its ZIP codes
Griswold at a glance
- Griswold is about 28 times as dense as Iowa as a whole.
- The median household income is $55,000, 27% below the Iowa median of $75,059.
- A typical owner-occupied home is valued at $98,900 (52% below Iowa) and median rent is $907 a month.
Local data for Griswold, IA
Counts from official public data
Housing and community stats
Griswold, IA, American Community Survey 2020-2024
Median household income
$55,000
Poverty rate
13.3%
Median home value
$98,900
Median rent
$907/mo
Homeownership
78.0%
Bachelor's or higher
23.0%
Median age
50.0
Average commute
20.8 min
Largest reported origins and ancestries: German Americans (245), Irish Americans (132), Italian Americans (33).
Economy and federal money
Jobs, pay, income and spending are for Cass County. PPP loans are for Griswold.
Unemployment rate
2.7%
Sep 2026, +0.3 pts in a year
Average annual pay
$52,232
5,700 jobs, 2025
Income per person
$65,270
BEA, 2024
Federal spending
$97M
FY 2026, $7,388 per person
PPP loans
$4.2M
203 loans, 504 jobs reported
How people get to work
Griswold, IA, workers 16 and older. American Community Survey 5-year estimates
- Drove alone82.6%
- Carpooled1.4%
- Public transit0.0%
- Walked5.5%
- Bicycle0.4%
- Taxi, ride-hailing, motorcycle or other0.0%
- Worked from home10.0%
Average one-way commute: 20.8 minutes for people who do not work from home.
Environment and hazard risk
Griswold, IA, 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
Hazards, floods and storm historyCheck a flood zone1 historic places
Health statistics
Share of adults in Griswold, IA, CDC PLACES estimates
Obesity
37.9%
U.S. 33.3% +4.6 pts
Diabetes
12.5%
U.S. 12.1% about the same
Smoking
14.8%
U.S. 12.8% +2.0 pts
Uninsured (18-64)
6.2%
U.S. 11.1% -4.9 pts
ZIP codes in Griswold
1 in or overlapping Griswold. Population shown
Cities near Griswold
| Name | Distance | Land area (sq mi) |
|---|---|---|
| LewisCity | 5.6 mi | 0.5 |
| ElliottCity | 6.1 mi | 0.4 |
| GrantCity | 10 mi | 0.7 |
| AtlanticCity | 13 mi | 8.3 |
| OaklandCity | 14 mi | 1.8 |
| CumberlandCity | 14 mi | 0.6 |
| CarsonCity | 15 mi | 0.7 |
| MarneCity | 15 mi | 0.6 |
| MacedoniaCity | 15 mi | 0.2 |
| Red OakCity | 16 mi | 3.9 |
| HancockCity | 16 mi | 0.7 |
| HendersonCity | 17 mi | 0.1 |
| WiotaCity | 17 mi | 0.3 |
| WalnutCity | 18 mi | 2.2 |
| StantonCity | 18 mi | 0.9 |
| MassenaCity | 19 mi | 0.7 |
Frequently asked questions
- What county is Griswold, IA in?
- Griswold is in Cass County, Iowa.
- What ZIP codes are in Griswold, IA?
- ZIP codes in or overlapping Griswold include 51535.
- What is the population of Griswold, IA?
- About 975 people live in Griswold, based on American Community Survey 5-year estimates.
- What cities are near Griswold?
- Nearby places include Lewis (5.6 mi), Elliott (6.1 mi), Grant (10 mi), Atlantic (13 mi), Oakland (14 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023