ZIP Code 61331

61331 is one of Illinois's ZIP codes, delivering to addresses in Lee Center, Lee County.

City: Lee Center
County: Lee County
State: Illinois
Prefix: 613xx

Where this code sits

61331 is part of the 613xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lee Center.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61331 delivers to without sharing its boundary.

ZIP codes nearest 61331

The ZIP codes whose reference points sit closest to 61331.
ZIP code	Distance	Delivers to
ZIP code 61310	4.5 mi	Amboy, IL
ZIP code 61378	4.9 mi	West Brooklyn, IL
ZIP code 61324	6.9 mi	Eldena, IL
ZIP code 61031	7.8 mi	Franklin Grove, IL
ZIP code 61057	7.9 mi	Nachusa, IL
ZIP code 61367	8.4 mi	Sublette, IL
ZIP code 61006	8.8 mi	Ashton, IL
ZIP code 61318	11 mi	Compton, IL

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 61331, plotted from its record coordinates.

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

Scope ZIP code 61331. 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.