Deepwater, MO

ZIP code 64740 serves Lamar, the county seat of Barton County in southwestern Missouri, and nearby rural areas. Its best-known landmark is the Harry S. Truman Birthplace State Historic Site, the preserved house where the future president was born in 1884. Other notable local sites include the Barton County Courthouse on the downtown square and Lamar City Park, a community green space with recreational facilities.