Skip Navigation
United States Postal Service
Postmaster Finder 
Postal History 
Research Sources 

Postmaster Finder


Post Offices by County

SAN JOAQUIN COUNTY, CALIFORNIA

ZIP Code Post Office Date Established Date Discontinued
95220 ACAMPO
95227 CLEMENTS
95320 ESCALON
95230 FARMINGTON 01/15/1857
95231 FRENCH CAMP 05/03/1854
95234 HOLT
95330 LATHROP
95236 LINDEN
95237 LOCKEFORD 06/19/1861
95240 LODI
95336 MANTECA
95366 RIPON
95208 STOCKTON 06/00/1849
95686 THORNTON 11/12/1878
95376 TRACY
95385 VERNALIS
95253 VICTOR
95258 WOODBRIDGE

Return to Main Menu