Johnston, IA ZIP Codes

One ZIP code serves Johnston, Iowa: 50131. Together they are home to 24,583 residents in 9,361 households.

Johnston city limits (Census)

MeasureCensus figure
Residents24,384
Households9,259
Median household income$106,551
Median home value$369,100
Median age37.4
Median rent$1,338

All 1 ZIP codes together

MeasureValue
Residents (sum of ZIP codes)24,583
Households (sum of ZIP codes)9,361
Median household income, range across ZIP codes$106,551 (50131) to $106,551 (50131)
Household-weighted average of ZIP medians (an approximation, not a true median)$106,551
Homeowners71.1%
Households with kids under 1838.1%
Moved in the past year10.1%
Carrier routes in EDDM2GO's route librarynot loaded yet

Every ZIP code in Johnston

ZIPMailing cityResidentsHouseholdsMedian incomeHome valueHomeownersWith kidsNew moversCarrier routesMailboxesWhy listed
50131Johnston24,5839,361$106,551$369,40071.1%38.1%10.1%——71% of its land; mailing city

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

Counties

Price a mailing to Johnston ZIP codes

EDDM guides

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Frequently asked questions

What ZIP codes are in Johnston, IA?
50131. A ZIP code is listed for Johnston when at least 10% of its land lies inside Johnston city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Johnston.
What is the population of Johnston, IA?
The Census Bureau counts 24,384 residents inside Johnston city limits (ACS 2020–2024). The 1 ZIP code that serve Johnston hold 24,583 residents in all.
What is the median household income in Johnston, IA?
$106,551 inside Johnston city limits, per the Census Bureau. Across its ZIP codes the medians run from $106,551 to $106,551.

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