There are 2 Post Offices in Prosser, Washington, serving a population of 5,967 people in an area of 5 square miles. There is 1 Post Office per 2,983 people, and 1 Post Office per 2 square miles.
In Washington, Prosser is ranked 323rd of 729 cities in Post Offices per capita, and 292nd of 729 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Prosser Post Offices.
PSTT Mail & More 30 Merlot Drive Prosser, WA
United States Postal Service 1103 Meade Avenue Prosser, WA Mailing Service, Postal Services