ZIP Code 61285

61285 is one of Illinois's ZIP codes, delivering to addresses in Thomson, Carroll County.

City: Thomson
County: Carroll County
State: Illinois
Prefix: 612xx

Where this code sits

61285 is part of the 612xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Thomson.

Thomson Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61285 delivers to without sharing its boundary.

ZIP codes nearest 61285

The ZIP codes whose reference points sit closest to 61285.
ZIP code	Distance	Delivers to
ZIP code 52771	7.0 mi	Teeds Grove, IA
ZIP code 61074	8.4 mi	Savanna, IL
ZIP code 52070	8.5 mi	Sabula, IA
ZIP code 52701	8.6 mi	Andover, IA
ZIP code 61252	9.6 mi	Fulton, IL
ZIP code 61014	9.7 mi	Chadwick, IL
ZIP code 61053	10 mi	Mount Carroll, IL
ZIP code 52733	11 mi	Clinton, IA

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 61285, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 61285. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.