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Thebes, IL ZIP code

The ZIP code for Thebes, Illinois is 62990. It is in Alexander County.

Population in these ZIPs
973
Avg. median income
$64,100population-weighted
Typical home value
$114,700population-weighted
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ZIP codes within 10 miles

Thebes, IL ZIP code list

Thebes, IL ZIP codes
ZIP codePopulationMedian incomeTypical home value
62990973$64,076$114,700

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 Thebes, IL?

The ZIP code for Thebes, IL is 62990.

What county is Thebes, Illinois in?

Thebes ZIP codes are in Alexander County.