PlainZIP

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
$118,882
Median income
$221,300
Median home value
21.7%
Bachelor's or higher

The verdict

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 Iowa average), while per-capita income is $26,905. Poverty here runs at 6.1%, with unemployment measured at 0.0%. Housing costs here run $221,300 for a typical home value (26% above the state average), with rent averaging - a month; 87.6% of 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 -. A geography-based comparison follows: 4 ZIP codes within about 10 miles of 50057, plus 6 more within Marion County, give a clearer read than the national average alone.

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

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 50057?

47.1

Median Age

42.5%

Male

57.5%

Female

0.0%

Foreign-Born

White 96.6%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 0.0%
Hispanic or Latino 0.0%

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

$26,905

Per Capita Income

6.1%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 50057 ranks nationally

Columbia, IA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$118,882 Top 10% higher than 90% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). This entry sits in this band. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US 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?

High School Graduate or Higher 55.4%
Bachelor's Degree or Higher 21.7%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

144

Total Housing Units

89

Occupied Units

55

Vacant Units

3.67

Avg Household Size

Occupancy Type

Owner 87.6%
Renter 12.4%

$221,300

Median Home Value

+26% vs state

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.

residents

What this shows Among its immediate neighbors, ZIP 50057 ranks #4 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 50057 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

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.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
50163 Melcher Dallas, IA 858 5.8 mi
50062 Melcher Dallas, IA 741 6.4 mi
50138 Knoxville, IA 11,720 8.7 mi
50272 Williamson, IA 152 8.0 mi

More ZIP Codes in Marion County

50219 standard
Pella, IA
Pop: 13,939
50138 standard
Knoxville, IA
Pop: 11,720
50225 standard
Pleasantville, IA
Pop: 2,940
50044 standard
Bussey, IA
Pop: 887
50163 standard
Melcher Dallas, IA
Pop: 858
50214 standard
Otley, IA
Pop: 850

Related Areas

Marion County Columbia, IA Iowa

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.

Read our methodology to see how this data is sourced, computed, and verified.