ZIP Code 61350

61350 is one of Illinois's ZIP codes, delivering to addresses in Ottawa, LaSalle County.

City: Ottawa
County: LaSalle County
State: Illinois
Prefix: 613xx

Where this code sits

61350 is part of the 613xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Ottawa.

Ottawa Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61350 delivers to without sharing its boundary.

ZIP codes nearest 61350

The ZIP codes whose reference points sit closest to 61350.
ZIP code	Distance	Delivers to
ZIP code 60557	7.1 mi	Wedron, IL
ZIP code 61341	7.8 mi	Marseilles, IL
ZIP code 61325	8.0 mi	Grand Ridge, IL
ZIP code 61373	8.3 mi	Utica, IL
ZIP code 60549	11 mi	Serena, IL
ZIP code 61348	12 mi	Oglesby, IL
ZIP code 61360	12 mi	Seneca, IL
ZIP code 61301	13 mi	La Salle, 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 61350, plotted from its record coordinates.

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

Scope ZIP code 61350. 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.