There are many steps you can take to find your missing pet!
The most comprehensive resource for your missing pet search is Mission Reunite (formerly the Missing Pet Partnership).
Here are some other suggestions:
1. Post on your neighborhood "Next Door" community. This is an app/ community you join based on your locations. Many pets are reunited within hours this way.
2. Post on your own Facebook page as well as ones designed for your county such as:
3. Post an ad on Craigslist
4. Contact animal control for your jurisdiction.
King County- RASKC
Renton and Medina (King County)- Seattle HUmane Society
Snohomish- Everett Animal Services