Harlan, IA ZIP Codes

One ZIP code serves Harlan, Iowa: 51537. Together they are home to 6,382 residents in 2,538 households. That is more than the 4,891 people counted inside Harlan city limits, because these ZIP codes reach past its boundary.

Harlan city limits (Census)

MeasureCensus figure
Residents4,891
Households2,017
Median household income$57,488
Median home value$152,500
Median age44.6
Median rent$783

All 1 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)6,382
Households (sum of ZIP codes)2,538
Median household income, range across ZIP codes$65,000 (51537) to $65,000 (51537)
Household-weighted average of ZIP medians (an approximation, not a true median)$65,000
Homeowners76.1%
Households with kids under 1831.0%
Moved in the past year9.4%
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Every ZIP code in Harlan

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
51537Harlan6,3822,538$65,000$166,80076.1%31.0%9.4%——3% of its land; mailing city

A ZIP code is listed for Harlan when at least 10% of its land lies inside Harlan city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Harlan. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Harlan.

Counties

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Frequently asked questions

What ZIP codes are in Harlan, IA?
51537. A ZIP code is listed for Harlan when at least 10% of its land lies inside Harlan city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Harlan.
What is the population of Harlan, IA?
The Census Bureau counts 4,891 residents inside Harlan city limits (ACS 2020–2024). The 1 ZIP code that serve Harlan hold 6,382 residents in all.
What is the median household income in Harlan, IA?
$57,488 inside Harlan city limits, per the Census Bureau. Across its ZIP codes the medians run from $65,000 to $65,000.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.