Griswold, Iowa
Griswold: Human settlement in Cass County, Iowa, United States of America
About
Griswold is a city located in the county of Cass in the U.S. state of Iowa. Its population at the 2010 census was 1,036 and a population density of 644 people per km². After 10 years in 2020 city had an estimated population of 941 inhabitants.
Quick Facts about Griswold
| Population : | 941 (2020) |
| Country : | United States of America |
| State : | Iowa (United States) |
| County : | Cass County |
| Postal code : | 51535 |
| Phone Area Codes : | 712 |
| Area : | 1.61 km2 |
| Altitude : | 1,102 feet / 336 meters |
| Time Zone : | America/Chicago |
| Local time : | 02:03:58 (6th December 2025) |
| Density : | 585 Pop. per km² as of 2020 |
| Population growth : | -10.1% (2010-2020) |
Geography
Griswold is located at 41°14'6"N 95°8'15"W (41.2349900, -95.1374900).
Griswold map
Click "full screen" 
icon to open full mode. View satellite images
icon to open full mode. View satellite images
- Official Website
Official website of Griswold
Demographics
According to census records, the population of Griswold decreased by 10.1% in 10 years.
| Year | Population | % Change | Method |
| 2010 | 1,036 | - | census |
| 2011 | 1,017 | -1.87% | estimation process |
| 2012 | 1,017 | 0% | estimation process |
| 2013 | 1,003 | -1.4% | estimation process |
| 2014 | 983 | -2.03% | estimation process |
| 2015 | 984 | 0.1% | estimation process |
| 2016 | 966 | -1.86% | estimation process |
| 2017 | 963 | -0.31% | estimation process |
| 2018 | 953 | -1.05% | estimation process |
| 2019 | 944 | -0.95% | estimation process |
| 2020 | 941 | -0.32% | estimation process |
Griswold zip code is 51535.
County name: Cass, County
fips: 19029
Stations (3)
Amtrak & bus stations near Griswold, IA
| Code | Name | Address | Type |
|---|---|---|---|
| OMA | Omaha | 1003 S. 9th Street | RAIL |
| CRN | Creston | Pine and Adams Avenue | RAIL |
| OSC | Osceola | Main & East Clay Streets | RAIL |
Post offices near Griswold
| Post Office Name | City | ZIP |
|---|---|---|
| Griswold Post Office | Griswold (IA) | 51535 |
Other cities in Cass County
Cities, towns, neighborhoods & other populated places in Cass County , IA.
| City Name | Population | Title |
|---|---|---|
| Atlantic | 6,513 | City in Iowa |
| Anita | 898 | City in Iowa |
| Lewis | 400 | City in Cass County, Iowa |
| Massena | 334 | Township in Cass County, Iowa, USA |
| Cumberland | 246 | Town in Cass County, Iowa, United States |
| Marne | 114 | Human settlement in Cass County, Iowa, United States of America |
| Wiota | 107 | City in Cass County, Iowa, United States |
