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Lacon, IL ZIP code

The ZIP code for Lacon, Illinois is 61540. It is in Marshall County.

Population in these ZIPs
2,753
Avg. median income
$78,800population-weighted
Typical home value
$141,600population-weighted
Metro area
Peoria, IL
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ZIP codes within 10 miles

Lacon, IL ZIP code list

Lacon, IL ZIP codes
ZIP codePopulationMedian incomeTypical home value
615402,753$78,824$141,600

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 Lacon

Frequently asked questions

What is the ZIP code for Lacon, IL?

The ZIP code for Lacon, IL is 61540.

What county is Lacon, Illinois in?

Lacon ZIP codes are in Marshall County.