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50057
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  3. ZIP Code 50057
Iowa (IA)Marion CountyPella641

ZIP Code 50057 — Columbia, IA

Marion County * Pella metro

Compare

327

Population

$118.9K

Median income

per household

$221.3K

Home value

6.1%

Poverty rate

What stands out

  • Median household income: $118.9K (top 10% vs US ZIP codes).
  • Median home value: $221.3K.
  • Poverty rate: 6.1%.

Categories vs U.S.

Economy

2 of 4 metrics better than U.S. benchmarks

Median household income

$118.9K

U.S.

$81K

Per-capita income

$26.9K

U.S.

$45K

Median home value

$221.3K

U.S.

$333K

Housing stress

Rent-burdened renters (≥30%)

0.0%

U.S.

51.1%

Severely rent-burdened (≥50%)

0.0%

U.S.

25.9%

Affordability Ratios

Home-Value-to-Income

1.9×

Within typical 3-5x range

Income distribution

Share of households by income bracket (ACS).

Income distribution
Income bracketShare of households
< $50k38.2%
$50–100k0.0%
$100–200k61.8%
$200k+0.0%
< $50k
38.2%
$50–100k
0.0%
$100–200k
61.8%
$200k+
0.0%

Housing tenure

Owner-occupied vs renter-occupied housing (ACS).

Housing tenure
TenurePercent
Owners87.6%
Renters12.4%
87.6%
Owners
Owners
87.6%
Renters
12.4%

Health

4 of 6 available metrics better than U.S.

CDC PLACES modeled ZCTA-level estimates (adult prevalence).

Obesity

41.7%

U.S.

33.3%

Diabetes

11.1%

U.S.

12.0%

Current smoking

15.8%

U.S.

13.1%

Connectivity

1 of 3 metrics better than U.S.

100+ Mbps coverage

87.4%

U.S.

89.6%

Gigabit ready

34.5%

U.S.

46.1%

5G available

93.3%

U.S.

77.4%

Learning

Education metrics come from ACS 5-year estimates for ZIP Code Tabulation Areas (ZCTAs).

Bachelor's degree+ (age 25+)

21.7%

U.S.

35.7%

ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as noise.

School districts

Knoxville Community School District

Map

ZIP 50057

Columbia, IA

Population

327

Area

18.6 sq mi

Density

17.6/sq mi

Neighbors

5004950062501385013950150

National Percentile Rankings

How this ZIP compares to other ZIP codes nationwide.

More Details

Census Tracts

2 tracts overlap this ZIP. Hover over segments to explore.

82%
18%

Tract 306

82.2%

Tract 307

17.8%

Total tracts: 2Coverage: 100.0%

Congressional District Overlap

District Coverage

ZIP codes can span multiple congressional districts. Overlap percentages are approximate by land area and should be treated as geographic coverage, not address-level assignment.

100%

IA-1

100%

Districts: 1Coverage: 100.0%

Data freshness

ACS 5-Year
2020–2024
CDC PLACES
2025
Broadband
2024-06-arcgis
Mobile
2025-11-24
Page Updated
2026-04-26

Release schedule and upstream dates: Sources.

Data sources

US Census Bureau (ACS 5-year)HUD USPS ZIP crosswalkUS Census TIGER/Line (geometry inputs)US Census TIGER/Line (school districts)US Census Bureau (ZCTA-to-tract relationship, 2020)US Census Bureau (2020 ZCTA-to-congressional-district relationship file, CD119)CDC PLACES (ZCTA)FCC Broadband Data Collection (fixed broadband)FCC (Mobile Broadband Data Collection)

Derived statistics

  • ZIP pages use Census ZIP Code Tabulation Areas (ZCTAs), not USPS delivery routes.
  • Population density is computed as population ÷ land area.
  • Overlap percentages (tracts and districts) are derived from map geometry and are approximate.

Data accuracy & methodology

ZIP pages combine 2020–2024 ACS 5-year ZCTA estimates with other public datasets when available (see Sources). Connectivity metrics use FCC coverage data, not ACS. ZIP-level estimates can have higher margins of error than county/state totals; treat small differences as statistical noise rather than precise changes.

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