Postmaster Finder
Postal History
Research Sources
Postmaster Finder
Post Offices by County
CLARK COUNTY,
WASHINGTON
ZIP Code
Post Office
Date Established
Date Discontinued
98601
AMBOY
98604
BATTLE GROUND
98606
BRUSH PRAIRIE
08/08/1871
98607
CAMAS
98622
HEISSON
98629
LA CENTER
98642
RIDGEFIELD
98661
VANCOUVER
01/08/1850
98671
WASHOUGAL
98675
YACOLT
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