July 1835 Washington County (Original County)
March 11, 1836 Brazoria County (Original County)
March 17, 1836 Colorado County (Original County)
March 17, 1836 Austin County (Original County)
March 17, 1836 Goliad County (Original County)
March 17, 1836 Gonzales County (Original County)
March 17, 1836 Jackson County (Original County)
March 17, 1836 Jasper County (Original County)
March 17, 1836 Sabine County (Original County)
March 17, 1836 San Augustine County (Original County)
March 17, 1836 San Patricio County (Original County)
March 17, 1836 Shelby County (Original County)
March 24, 1836 Nacogdoches County (Original County)
1836 Red River County (Original County)
1836 Refugio County (Original County)
1836 Bastrop County (Original County)
1836 Jefferson County (Original County)
1836 Liberty County (Original County)
1836 Matagorda County (Original County)
1836 Milam County (Original County)
1836 Victoria County (Original County)
December 20, 1836 Bexar County (Original County)
December 30, 1836 Harris County (Harrisburg County) (Original County)
June 12, 1837 Houston County
December 14, 1837 Fannin County
December 14, 1837 Montgomery County (Third County formed by Republic of Texas)
December 14, 1837 Robertson County
1837 Fayette County
May 15, 1838 Galveston County
1846 Cass County
1848 Webb County
1849 El Paso County
1854 Karnes County
1856 Comanche County