Columbia, IA · standard
ZIP Code 50057
Marion County, Iowa - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 238
- 5/sq mi Low-density area
- $118,882
- Median income Above-median income area
- $221,300
- Median home value Near-median home value
- 21.7%
- Bachelor's or higher Near-average bachelor's attainment
National ZIP placement
Columbia pairs a top-decile household income with above-median home values, in a rural, homeowner-dominated area.
- Top 10%
- household income, US ZIPs
- Top 50%
- 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 50057 against every reporting US ZIP.
ZIP code 50057 is a sparsely populated ZIP (a standard USPS delivery area) in Columbia, Marion County, Iowa, home to just 238 residents across 51.7 square miles, a density of 5 people per square mile, in the Chicago time zone.
ZIP 50057 skews affluent, with a median household income of $118,882 (55% above the average Iowa ZIP), while per-capita income is $26,905. Both reported hardship measures are comparatively low in absolute terms: poverty is 6.1% and unemployment is 0.0%. Housing is both higher-cost and owner-heavy: median home value is $221,300 (26% above the average Iowa ZIP), while 87.6% of occupied homes are owner-occupied.
Educational attainment sits below the national norm: 21.7% of adults hold a bachelor's degree or higher, the median age is 47.1, and the average commute is -. The page also surfaces 4 ZIP codes within roughly 10 miles and 6 more in Marion County, so 50057 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 50057, Columbia, 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
238
Population
51.7
Area (sq mi)
5
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 50057?
47.1
Median Age
42.5%
Male
57.5%
Female
0.0%
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?
$118,882
Median Household Income
+55% vs state ZIP avg
$26,905
Per Capita Income
6.1%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 50057 ranks among Iowa ZIPs
Columbia, 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)
$118,882 Top 3% higher than 97% 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
144housing units
144
Total Housing Units
89
Occupied Units
55
Vacant Units
3.67
Avg Household Size
Occupancy Type
$221,300
Median Home Value
+26% vs state ZIP avg
1938
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 5 business establishments in ZIP 50057, employing approximately 10 people with a combined annual payroll of $487,000.
5
Businesses
10
Employees
$487K
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 50057 vs 50163 →
ZIP 50057 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 50138
Knoxville (50138)
11,720 residents
- 50163 858
Melcher Dallas (50163)
858 residents
- 50062 741
Melcher Dallas (50062)
741 residents
- 50057 238
Columbia (50057)
238 residents
- 50272 152
Williamson (50272)
152 residents
What this shows Among its immediate neighbors, ZIP 50057 ranks #4 by population - useful context the national average alone can't give.
ZIP 50057 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 50057
Columbia (50057)
$118,882 median income
- 50138
Knoxville (50138)
$74,693 median income
- 50163
Melcher Dallas (50163)
$73,618 median income
- 50062
Melcher Dallas (50062)
$51,146 median income
- 50272 $45,000
Williamson (50272)
$45,000 median income
What this shows By household income, ZIP 50057 ranks the highest 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 50057, 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 Marion County
Related Areas
Frequently Asked Questions
What county is ZIP code 50057 in?
ZIP code 50057 (Columbia) is located in Marion County, Iowa. Marion County contains multiple ZIP codes, see the full list at /counties/marion-ia.
What is the population of ZIP code 50057?
ZIP code 50057 in Columbia, IA has a population of 238 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 50057?
The median household income in ZIP 50057 is $118,882, which is 56% above the national average of $76,288.
What is the average home value in ZIP 50057?
The median home value in ZIP 50057 is $221,300, which is 20% below the national average of $278,155.
What is the demographic makeup of ZIP 50057?
The largest racial group in ZIP 50057 is White at 96.6%.
How many businesses are in ZIP code 50057?
ZIP code 50057 has 5 business establishments employing approximately 10 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 50057?
In ZIP code 50057, 55.4% of residents aged 25+ have a high school diploma or higher, and 21.7% 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 50057?
In ZIP code 50057, approximately 87.6% of occupied housing units are owner-occupied and 12.4% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 50057?
The poverty rate in ZIP code 50057 is 6.1% 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 50057's numbers, next.
- See how ZIP 50057 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Columbia, 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.