WCCCA handles all requests for Police/Fire/EMS in the following areas:
- ALOHA
- BANKS
- BEAVERTON
- CORNELIUS
- DURHAM
- FOREST GROVE
- GASTON
- HILLSBORO
- KING CITY
- NORTH PLAINS
- SHERWOOD
- TIGARD
- TUALATIN
- WASHINGTON COUNTY (All unincorporated areas)
- WEST LINN (FIRE/EMS ONLY)
- WILSONVILLE (FIRE/EMS ONLY)