Regional Planning Commission

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