City · Iowa
Griswold, Iowa
Griswold, city, in Cass County, Iowa. Griswold had 972 residents on July 1, 2025 by the Census Bureau's estimate, down 1.9% since 2020; the 2020 Census counted 994 and the ACS 2020-2024 5-year estimates put it at 975 (±155). GEOID 1933150.
Residents, July 2025 estimate
972
Census Bureau estimate (no margin published)
2020 Census count: 994 · ACS 2020-2024: 975 ±155
Median household income
$55,000
±$8,647 (90% margin)
Iowa: $75,059
Median home value
$98,900
±$14,806 (90% margin)
Iowa: $208,000
Median gross rent
$907
±$516 (90% margin)
Iowa: $972
Where is Griswold and what county is it in?
Griswold is a city in Cass County, Iowa. It covers 0.6 square miles of land, 1,632 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Griswold, and is it growing?
The Census Bureau estimates that 972 people lived in Griswold on July 1, 2025, down 1.9% since 2020, while Iowa grew 1.5%. The 2020 Census counted 994 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 975 (±155).
| Measure | Griswold | Cass County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 975 ±155 | 13,096 | no clear change |
| Households | 436 ±63 | 5,844 | no clear change |
| Average household size | 2.16 ±0.25 | 2.20 | no clear change |
| Housing units | 482 ±64 | 6,393 | no clear change |
Griswold's population since 2000
From 1,039 in 2000 to 972 in 2025: down 6.4%. The 2000, 2010 and 2020 figures are census counts, each for Griswold as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Griswold?
The median resident of Griswold is 50.0 years old; 21.0% are under 18 and 28.6% are 65 or older. The largest group is non-Hispanic white residents at 91.3%, then non-Hispanic residents of two or more races at 6.5%.
| Measure | Griswold | Cass County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 50.0 ±4.4 | 43.5 | +12.2 |
| Under 18 years | 21.0% ±5.7 pts | 23.2% | – |
| 65 years and over | 28.6% ±5.8 pts | 23.4% | – |
| Male | 46.8% ±5.5 pts | 49.3% | – |
| Hispanic or Latino (any race) | 1.6% ±1.8 pts | 2.7% | – |
| White alone, not Hispanic | 91.3% ±5.1 pts | 93.5% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±2.5 pts | 0.9% | – |
| Asian alone, not Hispanic | 0.0% ±2.5 pts | 0.5% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±2.5 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±2.5 pts | 0.4% | – |
| Two or more races, not Hispanic | 6.5% ±5.0 pts | 1.6% | – |
| Some other race alone, not Hispanic | 0.6% ±1.2 pts | 0.2% | – |
| Born outside the United States | 0.5% ±0.7 pts | 0.9% | – |
| Speak a language other than English at home (age 5+) | 0.0% ±2.7 pts | 1.4% | – |
| Civilian veterans (age 18+) | 8.7% ±3.5 pts | 6.4% | – |
| With a disability | 10.4% ±3.4 pts | 15.0% | – |
| No health insurance coverage | 3.4% ±2.6 pts | 4.1% | – |
| High school graduate or higher (age 25+) | 93.5% ±3.9 pts | 94.5% | – |
| Bachelor's degree or higher (age 25+) | 23.0% ±8.4 pts | 22.1% | +9.7 pts |
| Graduate or professional degree (age 25+) | 7.1% ±3.5 pts | 5.1% | – |
| Lived in the same house a year earlier | 93.0% ±3.7 pts | 91.3% | – |
| Moved from another state in the past year | 1.3% ±1.8 pts | 1.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Griswold earn?
Half of Griswold's 436 households earn less than $55,000 a year (±$8,647), against $63,013 in Cass County and $75,059 in Iowa. In 2015-2019 it was $60,766 in 2024 dollars; the margins of error cannot tell the two periods apart. 13.3% of residents live below the poverty line.
| Measure | Griswold | Cass County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $55,000 ±$8,647 | $63,013 | no clear change |
| Mean household income | $66,764 ±$8,259 | $84,546 | – |
| Per capita income | $32,252 ±$5,866 | $37,667 | no clear change |
| People below the poverty line | 13.3% ±7.5 pts | 14.3% | no clear change |
| Children under 18 below the poverty line | 23.9% ±20.3 pts | 21.3% | – |
| Households receiving SNAP | 7.8% ±5.1 pts | 12.0% | – |
| Households with a computer | 89.9% ±6.7 pts | 92.0% | – |
| Households with a broadband subscription | 80.7% ±7.0 pts | 83.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Griswold?
Owners occupy 78.0% of Griswold's occupied homes and renters 22.0%. The median owner-occupied home is valued at $98,900 by its owner (±$14,806). The median renter pays $907 a month including utilities, and 34.9% of renters pay 35% or more of their income on rent.
| Measure | Griswold | Cass County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $98,900 ±$14,806 | $150,300 | no clear change |
| Median gross rent | $907 ±$516 | $777 | no clear change |
| Renters paying 35% or more of income on rent | 34.9% ±20.7 pts | 39.3% | no clear change |
| Median monthly owner costs, with a mortgage | $952 ±$59 | $1,128 | – |
| Owner-occupied homes | 78.0% ±7.6 pts | 71.6% | no clear change |
| Renter-occupied homes | 22.0% ±7.6 pts | 28.4% | – |
| Housing units | 482 ±64 | 6,393 | no clear change |
| Homeowner vacancy rate | 0.0% ±6.9 pts | 0.2% | – |
| Rental vacancy rate | 3.0% ±4.1 pts | 6.2% | – |
| Single-family detached homes | 87.1% ±5.8 pts | 81.7% | – |
| Mobile homes | 5.6% ±4.5 pts | 2.3% | – |
| Built 2020 or later | 1.7% ±1.7 pts | 0.9% | – |
| Built 2010 to 2019 | 1.9% ±2.8 pts | 3.0% | – |
| Built 1939 or earlier | 56.6% ±8.9 pts | 38.1% | – |
| Households with no vehicle | 4.8% ±3.8 pts | 5.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Griswold building?
Builders took permits for 0 new housing units in Griswold in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 4.2 across Iowa.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Griswold work and get to work?
82.6% of Griswold's workers drive alone and 10.0% work from home. The average trip to work takes 20.8 minutes.
| Measure | Griswold | Cass County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.2% ±6.3 pts | 63.5% | – |
| Unemployment rate | 1.6% ±1.6 pts | 1.4% | – |
| Drove alone to work | 82.6% ±6.2 pts | 79.7% | – |
| Carpooled | 1.4% ±2.3 pts | 4.9% | – |
| Public transportation | 0.0% ±5.0 pts | 0.1% | – |
| Walked | 5.5% ±4.3 pts | 3.8% | – |
| Worked from home | 10.0% ±5.4 pts | 10.0% | +7.0 pts |
| Mean travel time to work | 20.8 min ±3.9 | 15.1 min | −6.0 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Griswold?
No census tract lies mostly in Griswold; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 1902Cass County | 2,195 | $62,721 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Griswold) · Census block assignment files
How does Griswold compare with other places in Iowa?
By the Census Bureau's July 2025 estimates, Griswold is the 10,389th-most populous of the 19,476 U.S. incorporated places that have one and the 281st-most populous of 939 in Iowa.
Griswold is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 281st | 939 |
Griswold's figures with every place in Iowa (CSV)
Every place in Iowa, sortable · Compare Griswold with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Griswold?
22 of the 57 figures for Griswold on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Griswold are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Griswold.