ZIP Code 62239

62239 is one of Illinois's ZIP codes, delivering to addresses in Dupo, St. Clair County.

City: Dupo
County: St. Clair County
State: Illinois
Prefix: 622xx

Where this code sits

62239 is part of the 622xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dupo.

Dupo Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 62239 delivers to without sharing its boundary.

ZIP codes nearest 62239

The ZIP codes whose reference points sit closest to 62239.
ZIP code	Distance	Delivers to
ZIP code 62240	1.4 mi	East Carondelet, IL
ZIP code 63111	3.9 mi	Saint Louis, MO
ZIP code 62206	3.9 mi	East Saint Louis, IL
ZIP code 63125	5.0 mi	Saint Louis, MO
ZIP code 63116	5.3 mi	Saint Louis, MO
ZIP code 63118	5.5 mi	Saint Louis, MO
ZIP code 62236	5.8 mi	Columbia, IL
ZIP code 63123	6.5 mi	Saint Louis, MO

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 62239, plotted from its record coordinates.

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

Scope ZIP code 62239. 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.