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All United States ZIP Codes

ZIP, County, Place name or State

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Home ยป Zip codes by County

US ZIP Codes by County on W

To see a list of all ZIP codes by County on the selected letter, select the desired County from the list or write the desired County in the appropriate field and click Search.
Worcester
Washington
Waldo
Windsor
Windham
Warren
Westchester
Wayne
Wyoming
Westmoreland
Wicomico
Winchester (city)
Williamsburg (city)
Wise
Wythe
Wood
Wirt
Wetzel
Webster
Wake
Wilson
Watauga
Wilkes
Williamsburg
Walton
Wheeler
White
Walker
Whitfield
Wilcox
Wilkinson
Ware
Worth
Wakulla
Winston
Williamson
Weakley
Walthall
Woodford
Whitley
Wolfe
Wyandot
Williams
Wells
Wabash
Warrick
Washtenaw
Wexford
Wright
Winnebago
Woodbury
Winneshiek
Wapello
Waukesha
Walworth
Washburn
Waupaca
Waushara
Wabasha
Winona
Watonwan
Waseca
Wadena
Wilkin
Walsh
Ward
Wheatland
Wibaux
Will
Whiteside
Wyandotte
Wabaunsee
Woodson
Wallace
Wichita
West Baton Rouge
West Feliciana
West Carroll
Winn
Woodruff
Washita
Woods
Woodward
Wagoner
Wilbarger
Wharton
Waller
Webb
Willacy
Winkler
Weld
Washakie
Weston
Wasatch
Weber
White Pine
Washoe
Wasco
Wallowa
Whatcom
Wahkiakum
Whitman
Walla Walla
Winchester
Waynesboro
Wade Hampton
Wrangell

ZIP Codes are a system of postal codes used by the United States Postal Service (USPS) since 1963. The term ZIP is an acronym for Zone Improvement Plan; it was chosen to suggest that the mail travels more efficiently and quickly (zipping along) when senders use the code in the postal address. The basic format consists of five digits. An extended 'ZIP+4' code was introduced in 1983 which includes the five digits of the ZIP Code, followed by a hyphen and four additional digits that determine a more specific location.--Wikipedia