 On April 6, 1911, the Sanford city council passed a resolution to annex Goldsboro and on April 26, 1911 the Florida legislature passed the Sanford Charter Bill, dissolving the incorporation of both Sanford and Goldsboro, and reorganizing Sanford as a city that included Goldsboro within its boundaries.In 1913, Sanford became county seat of Seminole County, created from Orange County.Agriculture continued to dominate the economy until 1940, when it proved cheaper to cultivate produce in frost-free South Florida.