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Farmington, IL ZIP code

The ZIP code for Farmington, Illinois is 61531. It is in Fulton County.

Population in these ZIPs
3,007
Avg. median income
$70,100population-weighted
Typical home value
$150,400population-weighted
Metro area
Canton, IL
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ZIP codes within 10 miles

Farmington, IL ZIP code list

Farmington, IL ZIP codes
ZIP codePopulationMedian incomeTypical home value
615313,007$70,107$150,400

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

Cities near Farmington

Frequently asked questions

What is the ZIP code for Farmington, IL?

The ZIP code for Farmington, IL is 61531.

What county is Farmington, Illinois in?

Farmington ZIP codes are in Fulton County.