Land for sale in Shelby County, Alabama, recently totaled around $350 million and almost 100,000 acres. Shelby County ranks ninth in Alabama for the combined amount of land currently advertised for sale. There were three properties listed as sold in Shelby County through the Land Network Comparable Sales Program. This represented a total value of $968,500. Chelsea had the most land for sale. Shelby County is Alabama's 20th biggest county (809 square miles). It's located in the Metropolitan Alabama region of Alabama.