ZIP Code 61870

61870 is one of Illinois's ZIP codes, delivering to addresses in Ridge Farm, Vermilion County.

City: Ridge Farm
County: Vermilion County
State: Illinois
Prefix: 618xx

Where this code sits

61870 is part of the 618xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Ridge Farm.

Ridge Farm Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 61870 delivers to without sharing its boundary.

ZIP codes nearest 61870

The ZIP codes whose reference points sit closest to 61870.
ZIP code	Distance	Delivers to
ZIP code 61846	4.4 mi	Georgetown, IL
ZIP code 61850	5.6 mi	Indianola, IL
ZIP code 61924	8.1 mi	Chrisman, IL
ZIP code 61883	9.0 mi	Westville, IL
ZIP code 47928	9.4 mi	Cayuga, IN
ZIP code 61876	10 mi	Sidell, IL
ZIP code 47847	10 mi	Dana, IN
ZIP code 47875	11 mi	Saint Bernice, IN

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 61870, plotted from its record coordinates.

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

Scope ZIP code 61870. 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.