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Coulter, IA ZIP code

The ZIP code for Coulter, Iowa is 50431. It is in Franklin County.

Population in these ZIPs
228
Avg. median income
$62,900population-weighted
Typical home value
$90,000population-weighted
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ZIP codes within 10 miles

Coulter, IA ZIP code list

Coulter, IA ZIP codes
ZIP codePopulationMedian incomeTypical home value
50431228$62,917$90,000

Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology

Cities near Coulter

Frequently asked questions

What is the ZIP code for Coulter, IA?

The ZIP code for Coulter, IA is 50431.

What county is Coulter, Iowa in?

Coulter ZIP codes are in Franklin County.