There are 15 Post Offices in Washington County, Kansas, serving a population of 5,572 people in an area of 895 square miles. There is 1 Post Office per 371 people, and 1 Post Office per 59 square miles.
In Kansas, Washington County is ranked 7th of 105 counties in Post Offices per capita, and 15th of 105 counties in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Washington County Post Offices.
US Post Office 212 North Main Street Mahaska, KS
US Post Office 503 Main Street Haddam, KS
US Post Office 20 North Center Street Barnes, KS
US Post Office 101 East 2nd Street Palmer, KS
US Post Office 116 South Main Street Morrowville, KS
United States Postal Service 20 North Center Street Barnes, KS Mailing Service, Postal Services
United States Postal Service 100 C Street Washington, KS Mailing Service, Postal Services
United States Postal Service 113 Main Street Hollenberg, KS Mailing Service, Postal Services
United States Postal Service 503 Main Street Haddam, KS Mailing Service, Postal Services
United States Postal Service 501 South Oak Street Linn, KS Mailing Service, Postal Services
United States Postal Service 418 Commercial Street Greenleaf, KS Mailing Service, Postal Services
United States Postal Service 212 North Main Street Mahaska, KS Mailing Service, Postal Services
United States Postal Service 101 East North Street Hanover, KS Mailing Service, Postal Services
United States Postal Service 116 South Main Street Morrowville, KS Mailing Service, Postal Services
United States Postal Service 101 East 2nd Street Palmer, KS Mailing Service, Postal Services