ZIP Code 62427

62427 is one of Illinois's ZIP codes, delivering to addresses in Flat Rock, Crawford County.

City: Flat Rock
County: Crawford County
State: Illinois
Prefix: 624xx

Where this code sits

62427 is part of the 624xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Flat Rock.

Flat Rock Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 62427 delivers to without sharing its boundary.

ZIP codes nearest 62427

The ZIP codes whose reference points sit closest to 62427.
ZIP code	Distance	Delivers to
ZIP code 62451	7.4 mi	Palestine, IL
ZIP code 62454	7.6 mi	Robinson, IL
ZIP code 62464	10 mi	Stoy, IL
ZIP code 47861	12 mi	Merom, IN
ZIP code 62439	12 mi	Lawrenceville, IL
ZIP code 62449	13 mi	Oblong, IL
ZIP code 62433	14 mi	Hutsonville, IL
ZIP code 62417	15 mi	Bridgeport, 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 62427, plotted from its record coordinates.

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

Scope ZIP code 62427. 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.