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51537
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  2. ZIP Codes
  3. ZIP Code 51537
Iowa (IA)Shelby County712

ZIP Code 51537 — Harlan, IA

Shelby County

Compare

6.4K

Population

$65K

Median income

per household

$166.8K

Home value

7.3%

Poverty rate

What stands out

  • Median household income: $65K.
  • Median home value: $166.8K.
  • Poverty rate: 7.3%.

Categories vs U.S.

Economy

1 of 5 metrics better than U.S. benchmarks

Rental strain: 48.2% of renter households are rent-burdened (≥30% of income).

Median household income

$65K

U.S.

$81K

Per-capita income

$38K

U.S.

$45K

Median home value

$166.8K

U.S.

$333K

Housing stress

Rent-burdened renters (≥30%)

48.2%

U.S.

51.1%

Severely rent-burdened (≥50%)

19.9%

U.S.

25.9%

Affordability Ratios

Rent-to-Income

14.6%

Below 30% threshold

Home-Value-to-Income

2.6×

Within typical 3-5x range

Income distribution

Share of households by income bracket (ACS).

< $50k
37.8%
$50–100k
26.5%
$100–200k
27.3%
$200k+
8.4%

Health

2 of 6 available metrics better than U.S.

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

Obesity

38.5%

U.S.

33.3%

Diabetes

13.1%

U.S.

12.0%

Current smoking

16.2%

U.S.

13.1%

Connectivity

1 of 3 metrics better than U.S.

Best available speed

250Mbps

Below gigabit speeds reported

100+ Mbps coverage

94.2%

U.S.

85.3%

Gigabit ready

0.0%

U.S.

8.6%

5G available

61.9%

U.S.

77.4%

Learning

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

Bachelor's degree+ (age 25+)

25.1%

U.S.

35.7%

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

School districts

Harlan Community School District

Map

ZIP 51537

Harlan, IA

Population

6.4K

Area

163.8 sq mi

Density

39/sq mi

Neighbors

514465144751521515275153051531515435156251565515705157751578
More Details

Census Tracts

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

40%
23%
20%
17%

Tract 9601

40%

Tract 9604

23.4%

Tract 9603

19.9%

Tract 9602

16.7%

Total tracts: 4Coverage: 100.0%

Representation

U.S. House

ZIP codes can span multiple congressional districts. Overlap percentages are approximate by land area. Verify by address.

100%

IA-4

100%

Districts: 1Coverage: 100.0%

Data freshness

ACS 5-Year
2020–2024
CDC PLACES
2025
Broadband
2020-12
Mobile
2025-11-24
Page Updated
2026-02-23

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 (Form 477 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.