National Register of Historic Places listings in Brown County, Texas  This is a list of the National Register of Historic Places listings in Brown County, Texas. This is intended to be a complete list of properties listed on the National Register of Historic Places in Brown County, Texas. There are six properties listed on the National Register in the county. Two properties are listed as Recorded Texas Historic Landmarks (RTHLs) while another property includes two RTHLs. The locations of National Register properties may be seen in a mapping service provided.