ZIP Code 61259

61259 is one of Illinois's ZIP codes, delivering to addresses in Illinois City, Rock Island County.

City: Illinois City
County: Rock Island County
State: Illinois
Prefix: 612xx

Where this code sits

61259 is part of the 612xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Illinois City.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61259 delivers to without sharing its boundary.

ZIP codes nearest 61259

The ZIP codes whose reference points sit closest to 61259.
ZIP code	Distance	Delivers to
ZIP code 61237	4.2 mi	Buffalo Prairie, IL
ZIP code 52759	6.7 mi	Montpelier, IA
ZIP code 61284	8.2 mi	Taylor Ridge, IL
ZIP code 52761	8.7 mi	Muscatine, IA
ZIP code 61232	9.7 mi	Andalusia, IL
ZIP code 52728	9.9 mi	Buffalo, IA
ZIP code 61260	12 mi	Joy, IL
ZIP code 52726	12 mi	Blue Grass, 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 61259, plotted from its record coordinates.

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

Scope ZIP code 61259. 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.