ZIP Code 62306

62306 is one of Illinois's ZIP codes, delivering to addresses in Quincy, Adams County.

City: Quincy
County: Adams County
State: Illinois
Prefix: 623xx

Where this code sits

62306 is part of the 623xx range, the group of codes handled by one mail processing centre. Quincy is served by 3 ZIP codes in total; the full list, with the county each falls in, is on the Quincy page.

Quincy Illinois ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 62306 delivers to without sharing its boundary.

ZIP codes nearest 62306

The ZIP codes whose reference points sit closest to 62306.
ZIP code	Distance	Delivers to
ZIP code 62301	1.8 mi	Quincy, IL
ZIP code 62305	5.9 mi	Quincy, IL
ZIP code 63471	6.4 mi	Taylor, MO
ZIP code 63448	9.2 mi	La Grange, MO
ZIP code 62338	9.6 mi	Fowler, IL
ZIP code 62376	10 mi	Ursa, IL
ZIP code 63454	11 mi	Maywood, MO
ZIP code 62360	11 mi	Payson, 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 62306, plotted from its record coordinates.

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

Scope ZIP code 62306. 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.