ZIP Code 61345

61345 is one of Illinois's ZIP codes, delivering to addresses in Neponset, Bureau County.

City: Neponset
County: Bureau County
State: Illinois
Prefix: 613xx

Where this code sits

61345 is part of the 613xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Neponset.

Neponset Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61345 delivers to without sharing its boundary.

ZIP codes nearest 61345

The ZIP codes whose reference points sit closest to 61345.
ZIP code	Distance	Delivers to
ZIP code 61314	6.2 mi	Buda, IL
ZIP code 61443	7.7 mi	Kewanee, IL
ZIP code 61344	7.9 mi	Mineral, IL
ZIP code 61361	8.4 mi	Sheffield, IL
ZIP code 61234	9.6 mi	Annawan, IL
ZIP code 61421	12 mi	Bradford, IL
ZIP code 61426	13 mi	Castleton, IL
ZIP code 61379	13 mi	Wyanet, 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 61345, plotted from its record coordinates.

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

Scope ZIP code 61345. 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.