Delaware County on the map of Oklahoma as of 2025. Cities, roads, borders and directions in Delaware County of Oklahoma.

Delaware County is situated in the northeastern corner of Oklahoma. This beautiful county is named after Delaware Nation of Indians. The area of Delaware County is about 741 square miles. This county, created in 1907, is populated today by 41 thousand residents. Jay is the county seat of Delaware County. This map shows the borders of Delaware County as well as neighboring counties, including major highways and natural objecsts as of 2025. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Delaware County.