King County Post Office

Find King County Washington post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Auburn Post Office 11 3rd Street Northwest Auburn WA 98002 253-333-1377


Auburn Twin Lakes Post Office 1815 Southwest Campus Drive Federal Way WA 98023 253-952-4563

Ballard Post Office 5706 17th Avenue Northwest Seattle WA 98107 206-781-4656

Bellevue Post Office 1171 Bellevue Way Northeast Bellevue WA 98004 425-453-5655

Bitter Lake Post Office 929 North 145th Street Seattle WA 98133 206-364-0663

Black Diamond Post Office 25228 Baker Street Black Diamond WA 98010 360-886-9429

Bothell Post Office 10500 Beardslee Boulevard Bothell WA 98011 425-482-9755

Broadway Post Office 101 Broadway Seattle WA 98122 206-324-5474

Burien Post Office 609 Southwest 150th Street Burien WA 98166 206-248-8647

Burton Post Office 23830 Vashon Highway Southwest Vashon WA 98070 206-463-2091

Carnation Post Office 4440 McKinley Avenue Carnation WA 98014 425-333-6451

Columbia Post Office 3727 South Alaska Street Seattle WA 98118 206-721-2368

Covington Branch Post Office 17300 Southeast 270th Place Covington WA 98042 253-639-6833

Crossroads Post Office 15731 Northeast 8th Street Bellevue WA 98008 425-401-0892

Des Moines Post Office 2003 South 216th Street Des Moines WA 98198 206-824-3647

Downtown Kent Post Office 216 West Gowe Street Kent WA 98032 253-520-7576

Downtown Renton Post Office 314 Williams Avenue South Renton WA 98057 425-227-6304

Duvall Post Office 26400 Northeast Valley Street Duvall WA 98019 425-788-5645

East Union Post Office 1110 23rd Avenue Seattle WA 98122 206-328-9712

Enumclaw Post Office 1742 Cole Street Enumclaw WA 98022 360-825-8325

Fall City Post Office 4225 335th Place Southeast Fall City WA 98024 425-222-7501

Federal Post Office 909 1st Avenue Seattle WA 98104 206-748-5417

Federal Way Post Office 32829 Pacific Highway South Federal Way WA 98003 253-924-1692

Georgetown Post Office 620 South Orcas Street Seattle WA 98108 206-764-9565

Greenwood Post Office 8306 Greenwood Avenue North Seattle WA 98103 206-547-1406

Highlands Post Office 4301 Northeast 4th Street Renton WA 98059 425-227-6304

Hobart Post Office 20250 276th Avenue Southeast Maple Valley WA 98038 425-413-1967

International Post Office 414 6th Avenue South Seattle WA 98104 206-625-2293

Issaquah Post Office 400 Northwest Gilman Boulevard Issaquah WA 98027 425-837-8795

Kenmore Post Office 6700 Northeast 181st Street Kenmore WA 98028 425-482-9755

Kent Post Office 10612 Southeast 240th Street Kent WA 98031 253-852-1080

Kirkland Post Office 721 4th Avenue Kirkland WA 98033 425-739-6727

Lake City Post Office 3019 Northeast 127th Street Seattle WA 98125 206-364-0608

Magnolia Post Office 3211 West McGraw Street Seattle WA 98199 206-284-5958

Maple Valley Post Office 22023 Southeast Wax Road Maple Valley WA 98038 425-432-4174

Medina Post Office 816 Evergreen Point Road Medina WA 98039 425-646-8111

Mercer Island Post Office 3040 78th Avenue Southeast Mercer Island WA 98040 206-232-8834

Midlakes Post Office 12400 Southeast 38th Street Bellevue WA 98006 425-462-7508

Midtown Post Office 301 Union Street Seattle WA 98101 206-748-5417

Midway Post Office 23418 Pacific Highway South Kent WA 98032 253-856-2406

North Bend Post Office 451 East North Bend Way North Bend WA 98045 425-831-7020

North City Post Office 17233 15th Avenue Northeast Shoreline WA 98155 206-364-0656

Northgate Post Office 11036 8th Avenue Northeast Seattle WA 98125 206-364-0546

Pioneer Square Post Office 91 South Jackson Street Seattle WA 98104 206-625-2293

Preston Post Office 30405 Southeast 84th Street Preston WA 98050 425-222-5536

Queen Anne Post Office 415 1st Avenue North Seattle WA 98109 206-282-0542

Ravensdale Post Office 27200 272nd Avenue Southeast Ravensdale WA 98051 425-432-4712

Redmond Post Office 7241 185th Avenue Northeast Redmond WA 98052 425-869-3690

Renton Post Office 17200 116th Avenue Southeast Renton WA 98058 425-255-6389

Riverton Heights Post Office 15250 32nd Avenue South SeaTac WA 98188 206-241-7061

Seafirst Post Office 1001 4th Avenue Seattle WA 98154 206-748-5417

Seahurst Post Office 2116 Southwest 152nd Street Burien WA 98166 206-244-6947

Skykomish Post Office 108 Thelma St Skykomish WA 98288 360-677-2241

Skyway Post Office 7633 South 126th Street Seattle WA 98178 206-772-1860

Snoqualmie Post Office 8264 Olmstead Lane Southeast Snoqualmie WA 98065 425-888-4317

Terminal Finance Station Post Office 2420 4th Avenue South Seattle WA 98134 206-652-2467

Tukwila Post Office 225 Andover Park West Tukwila WA 98188 206-244-9592

University Post Office 4244 University Way Northeast Seattle WA 98105 206-675-8114

Vashon Post Office 10005 Southwest 178th Street Vashon WA 98070 206-463-6842

Wallingford Post Office 1329 North 47th Street Seattle WA 98103 206-547-1406

Wedgwood Post Office 7724 35th Avenue Northeast Seattle WA 98115 206-527-8896

West Seattle Post Office 4412 California Avenue Southwest Seattle WA 98116 206-923-0485

Westwood Post Office 2721 Southwest Trenton Street Seattle WA 98126 206-938-7769

Woodinville Post Office 17610 Woodinville Snohomish Road Northeast Woodinville WA 98072 425-487-0995

About Post Offices

What Change of Address options are available?

Customers can request a temporary or permanent Change of Address either online or in person at the Post Office using PS Form 3575. The online application for Change of Address has a $1.00 identity validation fee.

Is it possible to insure mail and items sent via the USPS?

Yes. Standard mail can be insured for up to $5,000 for an additional fee. Registered mail items can be insured for up to $50,000.

What is the USPS Office of Inspector General?

The Office of Inspector General (OIG) is a division within the USPS responsible for ensuring the integrity and accountability of the postal service. It conducts investigations to safeguard the postal system and performs audits and reviews.