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Alton, KS ZIP code

The ZIP code for Alton, Kansas is 67623. It is in Osborne County.

Population in these ZIPs
228
Avg. median income
$102,900population-weighted
Typical home value
$79,400population-weighted
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ZIP codes within 10 miles

Alton, KS ZIP code list

Alton, KS ZIP codes
ZIP codePopulationMedian incomeTypical home value
67623228$102,933$79,400

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

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Frequently asked questions

What is the ZIP code for Alton, KS?

The ZIP code for Alton, KS is 67623.

What county is Alton, Kansas in?

Alton ZIP codes are in Osborne County.