Marathon, IA ZIP Codes

One ZIP code serves Marathon, Iowa: 50565. Together they are home to 380 residents in 163 households. That is more than the 234 people counted inside Marathon city limits, because these ZIP codes reach past its boundary.

Marathon city limits (Census)

MeasureCensus figure
Residents234
Households113
Median household income$39,375
Median home value$46,900
Median age53.5
Median rent$775

All 1 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)380
Households (sum of ZIP codes)163
Median household income, range across ZIP codes$51,875 (50565) to $51,875 (50565)
Household-weighted average of ZIP medians (an approximation, not a true median)$51,875
Homeowners89.0%
Households with kids under 1819.0%
Moved in the past year10.3%
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Every ZIP code in Marathon

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
50565Marathon380163$51,875$59,70089.0%19.0%10.3%——2% of its land; mailing city

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

Counties

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EDDM guides

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Frequently asked questions

What ZIP codes are in Marathon, IA?
50565. A ZIP code is listed for Marathon when at least 10% of its land lies inside Marathon city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Marathon.
What is the population of Marathon, IA?
The Census Bureau counts 234 residents inside Marathon city limits (ACS 2020–2024). The 1 ZIP code that serve Marathon hold 380 residents in all.
What is the median household income in Marathon, IA?
$39,375 inside Marathon city limits, per the Census Bureau. Across its ZIP codes the medians run from $51,875 to $51,875.

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