There are 10 US Post Offices in Lonoke County serving a total of 72,157 residents equating to 7,216 residents per post office. It's estimated that approximately 115,171 packages are handled across the 10 county post offices annually. Lonoke County is a county located in the Central Arkansas region of the U.S. state of Arkansas. As of the 2010 census, the population was 68,356, making it the eleventh-most populous of Arkansas's seventy-five counties. The county seat is Lonoke and largest city is Cabot. Lonoke County was formed on April 16, 1873 from Pulaski County and Prairie County, and was named as a corruption of \"lone oak\", after a large red oak in the area that had been used by a surveyor to lay out the Memphis and Little Rock Railroad. Located within Central Arkansas, the county's varied geography can be roughly broken into thirds horizontally. The top third has rolling hills at the edge of the Ozarks, including the Cabot area. The middle third, including the Lonoke area, contains portions of the Grand Prairie, a flat native grassland today known for rice farming, an important part of the culture, economy and history of Lonoke County. The southern third, including the Scott area, is home to the alluvial soils of the Arkansas Delta. Historically, a military road and a railroad brought settlers to the area, and cotton cultivation was very profitable. In 1904, a demonstration that rice could grow well on the same land coupled with sinking cotton prices drove the area into rice cultivation. During World War I, a United States Army World War I Flight Training airfield, Eberts Field, was constructed. Today Lonoke County is included in the Central Arkansas metro area, with Little Rock as the principal city. In addition to agriculture, the county's economy sees tourists at the Camp Nelson Confederate Cemetery, Joe Hogan Fish Hatchery and Toltec Mounds State Park, Lonoke County is an alcohol prohibition or dry county."