City · Illinois · United States

Quincy, IL — ZIP codes

3 ZIP codes · Adams County

City: Quincy
County: Adams
State: Illinois
Country: United States
Postal codes: 623016230562306
Single source
Coordinates: 39.9307, -91.3763 View on OpenStreetMap

ZIP codes (3)

Postal code	Place name	Verification
62301	Quincy	Single source
62305	Quincy	Single source
62306	Quincy	Single source

Sources and verification

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Last generated : 2026-08-21. Report an error.