COUNTY CODE
County codes 1958
- AAA
- KING
- BAA
- PIERCE
- CAA
- SPOKANE
- CLA
- CLALLAM
- CUA
- COLUMBIA
- CVA
- ISLAND
- DAA
- SNOHOMISH
- DSA
- DOUGLAS
- EAA
- YAKIMA
- FAA
- WHATCOM
- FNA
- FRANKLIN
- FYA
- FERRY
- GAA
- CLARK
- GDA
- GARFIELD
- GTA
- GRANT
- HAA
- GRAY'S
HARBOR
- JAA
- THURSTON
- JJA
- MAIL OUT FROM OLYMPIA
- KAA
- CHELAN
- KSA
- KITSAP
- LAA
- LEWIS
- MAA
- SKAGIT
- NAA
- COWLITZ
- PAA
- WHITMAN
- PEB
- PEND OREILLE
- RAA
- BENTON
- SAA
- KITTITAS
- SJA
- SAN JUAN
- SKA
- SKAMANIA
- TAA
- LINCOLN
- UAA
- OKANOGAN
- VAA
- PACIFIC
- WAA
- STEVENS
- WMA WAHKIAKUM
- WWA WALLA WALLA
- XAA
- MASON
- YAA
- JEFFERSON
- YYA
- ADAMS
- ZAA
- KLICKITAT
- ZZA
- ASOTIN