Thomson, IL ZIP code

The ZIP code for Thomson, Illinois is 61285. It is in Carroll County.

61285

Population in these ZIPs: 2,728
Avg. median income: $68,500population-weighted
Typical home value: $156,600population-weighted

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Thomson, IL ZIP code list

Thomson, IL ZIP codes
ZIP code	Population	Median income	Typical home value
61285	2,728	$68,500	$156,600

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 Thomson

Savanna 9 mi
Mount Carroll 10 mi
Chadwick 10 mi
Fulton 11 mi
Morrison 13 mi
Lanark 16 mi
Milledgeville 16 mi
Fenton 18 mi
Albany 19 mi
Lyndon 20 mi
Sterling 20 mi
Elizabeth 22 mi

Frequently asked questions

What is the ZIP code for Thomson, IL?

The ZIP code for Thomson, IL is 61285.

What county is Thomson, Illinois in?

Thomson ZIP codes are in Carroll County.