Griswold, IA · standard
ZIP Code 51535
Cass County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 1,923
- 6/sq mi Low-density area
- $76,371
- Median income Near-median income area
- $152,300
- Median home value Below-median home value
- 22.6%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Griswold pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 43%
- household income, US ZIPs
- 26th pct
- home value, US ZIPs
- 6
- people per sq mi
- 79%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51535 against every reporting US ZIP.
ZIP code 51535 covers 337.4 square miles in Griswold, Cass County, Iowa (a standard USPS delivery area), with a modest 1,923 residents on file, a density of 6 people per square mile, in the Chicago time zone.
ZIP 51535 lands in the middle-income range, with a median household income of $76,371 (0% below the average Iowa ZIP), while per-capita income is $43,285. Both reported hardship measures are comparatively low in absolute terms: poverty is 7.9% and unemployment is 0.9%. Median home value is $152,300 (13% below the average Iowa ZIP) and median rent is $950; 78.6% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 22.6% of adults hold a bachelor's degree or higher, the median age is 50.4, and the average commute is 23 minutes. The page also surfaces 3 ZIP codes within roughly 10 miles and 6 more in Cass County, so 51535 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Top industries in ZIP 51535
Top 5 sectors by establishment count in Griswold, IA
Which industries have the most business establishments in ZIP 51535.
- Other services (except public administration)
Other services (except public administration)
9 establishments
- Construction
Construction
5 establishments
- Transportation and warehousing
Transportation and warehousing
5 establishments
- Retail trade
Retail trade
4 establishments
- Finance and insurance
Finance and insurance
4 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 51535, Griswold, IA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.
Quick Facts
1,923
Population
337.4
Area (sq mi)
6
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51535?
50.4
Median Age
52.8%
Male
47.2%
Female
0.3%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$76,371
Median Household Income
-0% vs state ZIP avg
$43,285
Per Capita Income
7.9%
Poverty Rate
0.9%
Unemployment Rate
23.3 min
Mean Commute Time
How ZIP 51535 ranks among Iowa ZIPs
Griswold, IA household income vs. every Iowa ZIP code
Median household income among 911 reporting Iowa ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$76,371 Top 43% higher than 57% of 911 Iowa ZIPs
Each bar is a $20K-wide band; taller bars hold more Iowa ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
791housing units
791
Total Housing Units
740
Occupied Units
51
Vacant Units
2.25
Avg Household Size
Occupancy Type
$152,300
Median Home Value
-13% vs state ZIP avg
$950
Median Rent
1943
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 49 business establishments in ZIP 51535, employing approximately 235 people with a combined annual payroll of $10,625,000.
49
Businesses
235
Employees
$10.6M
Annual Payroll
7
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Other services (except public administration) | 9 | 18.4% |
| Construction | 5 | 10.2% |
| Transportation and warehousing | 5 | 10.2% |
| Retail trade | 4 | 8.2% |
| Finance and insurance | 4 | 8.2% |
| Health care and social assistance | 4 | 8.2% |
| Administrative and support and waste management and remediation services | 3 | 6.1% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 51535 vs 51532 →
ZIP 51535 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51535
Griswold (51535)
1,923 residents
- 51544 721
Lewis (51544)
721 residents
- 51532 622
Elliott (51532)
622 residents
- 50847 87
Grant (50847)
87 residents
What this shows Among its immediate neighbors, ZIP 51535 ranks the most populous - useful context the national average alone can't give.
ZIP 51535 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51535
Griswold (51535)
$76,371 median income
- 50847
Grant (50847)
$68,125 median income
- 51532
Elliott (51532)
$65,375 median income
- 51544
Lewis (51544)
$48,313 median income
What this shows By household income, ZIP 51535 ranks the highest of 4 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 51535, both outside IA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (1,923 here; floor ≥1,000).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Cass County
Related Areas
Frequently Asked Questions
What county is ZIP code 51535 in?
ZIP code 51535 (Griswold) is located in Cass County, Iowa. Cass County contains multiple ZIP codes, see the full list at /counties/cass-ia.
What is the population of ZIP code 51535?
ZIP code 51535 in Griswold, IA has a population of 1,923 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51535?
The median household income in ZIP 51535 is $76,371, which is 0% above the national average of $76,288.
What is the average home value in ZIP 51535?
The median home value in ZIP 51535 is $152,300, which is 45% below the national average of $278,155.
What is the demographic makeup of ZIP 51535?
The largest racial group in ZIP 51535 is White at 95.5%. Hispanic or Latino residents make up 0.9% of the population.
How many businesses are in ZIP code 51535?
ZIP code 51535 has 49 business establishments employing approximately 235 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 51535?
The top industries by establishment count in ZIP 51535 are: Other services (except public administration) (9), Construction (5), Transportation and warehousing (5). There are 7 industry sectors represented in total.
What is the education level in ZIP code 51535?
In ZIP code 51535, 59.0% of residents aged 25+ have a high school diploma or higher, and 22.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 51535?
The mean commute time for workers in ZIP code 51535 is 23.3 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 51535?
In ZIP code 51535, approximately 78.6% of occupied housing units are owner-occupied and 21.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51535?
The poverty rate in ZIP code 51535 is 7.9% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.
Related
Take this with you
What to do with ZIP 51535's numbers, next.
- See how ZIP 51535 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Griswold, IA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.