Regional Planning Commission

615 Snow Ave.
Richland, WA 99352
P.O. Box 850
Benton City, WA 99320
620 Market Street
Prosser, WA 99350
3250 Port of Benton Blvd
Richland, WA 99354
1622 Terminal Dr
Richland, WA 99352
7130 W. Grandridge Blvd Suite A
Kennewick, WA 99336