Mail-Back Services

Mail-back envelope distribution locations

Mail-back envelopes are available in many areas of the county. King County Libraries and other distribution locations listed below provide pre-paid, pre-labeled envelopes for disposal of unwanted medicines.  Find out what can be placed in a mail-back envelope.

 How it works

  1. Go to a distribution location listed below to pick up a pre-paid, pre-labeled mail-back envelope.
  2. Each mail-back envelope is 8 by 11 inches and holds up to 8 ounces of unwanted medicine.
  3. Place unwanted medicines, in their container, into the mail-back envelope.
  4. Seal envelope and place in your home mailbox.
  5. Mail-back envelopes are sent directly to the disposal facility from your home mailbox.
  6. There is no cost to residents to use this service.

Medicines will only be accepted for disposal using the pre-paid, pre-labeled mail-back envelope provided at a distribution location listed below.


King County Library Distribution Locations

Location Name Address City Zip Code
King County Library – Carnation Branch 4804 Tolt Avenue Carnation  98014
King County Library – Federal Way 848 South 320th St Federal Way  98003
King County Library – Issaquah Branch 10 West Sunset Way Issaquah  98027
King County Library – Kent Branch 212 2nd Avenue North Kent  98032
King County Library – Maple Valley Branch 21844 SE 248th Street Maple Valley  98038
King County Library – Mercer Island Branch 4400 88th Ave SE Mercer Island  98040
King County Library – Newcastle Branch 12901 Newcastle Way Newcastle  98056
King County Library – Algona-Pacific Branch 255 Ellingson Road Pacific  98047
King County Library – Fairwood Branch 17009 140th Avenue SE Renton  98058
King County Library – Renton Highland Branch 2801 NE 10th Street Renton  98056
King County Library – Sammamish Branch 825 228th Avenue SE Sammamish  98075
King County Library – White Center Branch 1409 SW 107th Street Seattle  98146
King County Library – Skyway Branch 12601 76th Avenue South Seattle  98178
King County Library – Skykomish Branch 100 5th Street Skykomish  98288

Additional Distribution Locations

Location Name Address City Zip Code
Beaux Arts Village Town Hall 10550 SE 27th Street Beaux Arts Village 98004
Hunts Point Town Hall 3000 Hunts Point Road Hunts Point 98004
Seattle Public Library – Ballard Branch 5614 22nd Ave. N.W. Seattle 98107
Yarrow Point Town Hall 4030 95th Ave NE Yarrow Point 98004


Residents that are homebound or have limited mobility

Residents that are homebound or have limited mobility can request to have a mail-back envelope sent to their home to dispose of unwanted medicines.  Home healthcare professionals providing services to homebound residents or residents with limited mobility may request a mail-back envelope on their behalf.