Regional Planning Commission

1622 Terminal Dr
Richland, WA 99352
P.O. Box 850
Benton City, WA 99320
615 Snow Ave.
Richland, WA 99352
P.O. Box 303
Richland, WA 99352
7130 W. Grandridge Blvd Suite A
Kennewick, WA 99336
3250 Port of Benton Blvd
Richland, WA 99354