Coulter, IA · standard
ZIP Code 50431
Franklin County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 273
- 141/sq mi High-density area
- $62,917
- Median income Near-median income area
- $90,000
- Median home value Below-median home value
- 10.6%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Coulter pairs a below-median household income with among the most affordable home values nationally, in a rural, homeowner-dominated area.
- 35th pct
- household income, US ZIPs
- 7th pct
- home value, US ZIPs
- 141
- people per sq mi
- 74%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 50431 against every reporting US ZIP.
ZIP code 50431 is a sparsely populated ZIP (a standard USPS delivery area) in Coulter, Franklin County, Iowa, home to just 273 residents across 1.9 square miles, a density of 141 people per square mile, in the Chicago time zone.
ZIP 50431 reports a modest median household income of $62,917 (18% below the average Iowa ZIP), while per-capita income is $24,881. The poverty rate is 16.7%, with unemployment at 1.1%; those measures add context to the income figure. Home values sit below the statewide ZIP benchmark: the median is $90,000 (49% below the average Iowa ZIP), and median rent is $693; owner occupancy is 73.8%.
Formal educational attainment runs low here: just 10.6% of adults hold a bachelor's degree or higher, the median age is 34.2, and the average commute is -. The page also surfaces 7 ZIP codes within roughly 10 miles and 6 more in Franklin County, so 50431 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 50431, Coulter, 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
273
Population
1.9
Area (sq mi)
141
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 50431?
34.2
Median Age
55.7%
Male
44.3%
Female
13.6%
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?
$62,917
Median Household Income
-18% vs state ZIP avg
$24,881
Per Capita Income
16.7%
Poverty Rate
1.1%
Unemployment Rate
How ZIP 50431 ranks among Iowa ZIPs
Coulter, 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)
$62,917 24th percentile higher than 24% 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
109housing units
109
Total Housing Units
84
Occupied Units
25
Vacant Units
2.71
Avg Household Size
Occupancy Type
$90,000
Median Home Value
-49% vs state ZIP avg
$693
Median Rent
1944
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 3 business establishments in ZIP 50431, employing approximately 4 people with a combined annual payroll of $125,000.
3
Businesses
4
Employees
$125K
Annual Payroll
0
Industry Sectors
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 50431 vs 50452 →
ZIP 50431 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 50441
Hampton (50441)
5,776 residents
- 50475 1,757
Sheffield (50475)
1,757 residents
- 50071 1,007
Dows (50071)
1,007 residents
- 50452 804
Latimer (50452)
804 residents
- 50420 377
Alexander (50420)
377 residents
- 50431 273
Coulter (50431)
273 residents
- 50041 92
Bradford (50041)
92 residents
- 50227 40
Popejoy (50227)
40 residents
What this shows Among its immediate neighbors, ZIP 50431 ranks #6 by population - useful context the national average alone can't give.
ZIP 50431 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 50071
Dows (50071)
$83,036 median income
- 50420
Alexander (50420)
$76,250 median income
- 50475
Sheffield (50475)
$70,938 median income
- 50452
Latimer (50452)
$66,250 median income
- 50431
Coulter (50431)
$62,917 median income
- 50441
Hampton (50441)
$49,910 median income
- 50227
Popejoy (50227)
$38,611 median income
What this shows By household income, ZIP 50431 ranks #5 of 7 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 50431, 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 Franklin County
Related Areas
Frequently Asked Questions
What county is ZIP code 50431 in?
ZIP code 50431 (Coulter) is located in Franklin County, Iowa. Franklin County contains multiple ZIP codes, see the full list at /counties/franklin-ia.
What is the population of ZIP code 50431?
ZIP code 50431 in Coulter, IA has a population of 273 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 50431?
The median household income in ZIP 50431 is $62,917, which is 18% below the national average of $76,288.
What is the average home value in ZIP 50431?
The median home value in ZIP 50431 is $90,000, which is 68% below the national average of $278,155.
What is the demographic makeup of ZIP 50431?
The largest racial group in ZIP 50431 is White at 63.6%. Hispanic or Latino residents make up 47.4% of the population.
How many businesses are in ZIP code 50431?
ZIP code 50431 has 3 business establishments employing approximately 4 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 50431?
In ZIP code 50431, 67.4% of residents aged 25+ have a high school diploma or higher, and 10.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 50431?
In ZIP code 50431, approximately 73.8% of occupied housing units are owner-occupied and 26.2% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 50431?
The poverty rate in ZIP code 50431 is 16.7% 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 50431's numbers, next.
- See how ZIP 50431 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Coulter, 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.