Mondamin, IA · standard
ZIP Code 51557
Harrison County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 873
- 5/sq mi Low-density area
- $76,250
- Median income Near-median income area
- $161,000
- Median home value Below-median home value
- 27.4%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Mondamin pairs an above-median household income with below-median home values, in a rural, homeowner-dominated area.
- Top 43%
- household income, US ZIPs
- 30th pct
- home value, US ZIPs
- 5
- people per sq mi
- 88%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 51557 against every reporting US ZIP.
ZIP code 51557 is a sparsely populated ZIP (a standard USPS delivery area) in Mondamin, Harrison County, Iowa, home to just 873 residents across 181.9 square miles, a density of 5 people per square mile, in the Chicago time zone.
ZIP 51557 lands in the middle-income range, with a median household income of $76,250 (0% below the average Iowa ZIP), while per-capita income is $39,240. Both reported hardship measures are comparatively low in absolute terms: poverty is 6.3% and unemployment is 1.5%. Median home value is $161,000 (8% below the average Iowa ZIP) and median rent is $890; 88.3% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 27.4% of adults hold a bachelor's degree or higher, the median age is 41.5, and the average commute is 26 minutes. The page also surfaces 4 ZIP codes within roughly 10 miles and 6 more in Harrison County, so 51557 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 →
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 51557, Mondamin, 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
873
Population
181.9
Area (sq mi)
5
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 51557?
41.5
Median Age
51.7%
Male
48.3%
Female
0.8%
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?
$76,250
Median Household Income
-0% vs state ZIP avg
$39,240
Per Capita Income
6.3%
Poverty Rate
1.5%
Unemployment Rate
26.2 min
Mean Commute Time
How ZIP 51557 ranks among Iowa ZIPs
Mondamin, 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)
$76,250 Top 44% higher than 56% 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
416housing units
416
Total Housing Units
351
Occupied Units
65
Vacant Units
2.36
Avg Household Size
Occupancy Type
$161,000
Median Home Value
-8% vs state ZIP avg
$890
Median Rent
1970
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 10 business establishments in ZIP 51557, employing approximately 26 people with a combined annual payroll of $982,000.
10
Businesses
26
Employees
$982K
Annual Payroll
2
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Construction | 3 | 30.0% |
| Transportation and warehousing | 3 | 30.0% |
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 51557 vs 51556 →
ZIP 51557 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51557
Mondamin (51557)
873 residents
- 51564
Pisgah (51564)
501 residents
- 51556
Modale (51556)
437 residents
- 51545
Little Sioux (51545)
378 residents
- 51550 181
Magnolia (51550)
181 residents
What this shows Among its immediate neighbors, ZIP 51557 ranks the most populous - useful context the national average alone can't give.
ZIP 51557 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 51564
Pisgah (51564)
$78,750 median income
- 51550
Magnolia (51550)
$77,500 median income
- 51557
Mondamin (51557)
$76,250 median income
- 51545
Little Sioux (51545)
$70,313 median income
- 51556
Modale (51556)
$60,556 median income
What this shows By household income, ZIP 51557 ranks #3 of 5 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 51557, both outside IA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Harrison County
Related Areas
Frequently Asked Questions
What county is ZIP code 51557 in?
ZIP code 51557 (Mondamin) is located in Harrison County, Iowa. Harrison County contains multiple ZIP codes, see the full list at /counties/harrison-ia.
What is the population of ZIP code 51557?
ZIP code 51557 in Mondamin, IA has a population of 873 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 51557?
The median household income in ZIP 51557 is $76,250, which is 0% below the national average of $76,288.
What is the average home value in ZIP 51557?
The median home value in ZIP 51557 is $161,000, which is 42% below the national average of $278,155.
What is the demographic makeup of ZIP 51557?
The largest racial group in ZIP 51557 is White at 92.4%. Hispanic or Latino residents make up 4.3% of the population.
How many businesses are in ZIP code 51557?
ZIP code 51557 has 10 business establishments employing approximately 26 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 51557?
In ZIP code 51557, 69.6% of residents aged 25+ have a high school diploma or higher, and 27.4% 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 51557?
The mean commute time for workers in ZIP code 51557 is 26.2 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 51557?
In ZIP code 51557, approximately 88.3% of occupied housing units are owner-occupied and 11.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 51557?
The poverty rate in ZIP code 51557 is 6.3% 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 51557's numbers, next.
- See how ZIP 51557 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Mondamin, 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.