DATE OF INCORPORATION NAME OF LOCAL FORM OF DATE COUNTY LAWS IN FORCE GOVERNMENT GOVERNMENT COUNTY ESTABLISHED SEAT BEFORE JULY 1 1872-AFTER JULY 1 1872 CERTIFIED FORMERLY
AUBURN M-CITY SANGAMON NO FEB. 16, 1865 JULY 25, 1872 AUG. 10, 1872 AUBURN TOWNSHIP SANGAMON NOV. 6, 1860 BALL TOWNSHIP SANGAMON NOV. 6, 1860 BARCLAY M-VILLAGE SANGAMON NO NOV. 10, 1904 FEB. 9, 1905 BERLIN M-VILLAGE SANGAMON NO MAR. 27, 1896 JULY 6, 1900 BUFFALO M-VILLAGE SANGAMON NO MAR. 29, 1879 JUNE 7, 1879 BUFFALO HART TOWNSHIP SANGAMON NOV. 6, 1860 CANTRALL M-VILLAGE SANGAMON NO NOV. 20, 1894 FEB. 18, 1895 CAPITOL TOWNSHIP SANGAMON JULY 1, 1877 CARTWRIGHT TOWNSHIP SANGAMON NOV. 6, 1860 CHATHAM M-VILLAGE SANGAMON NO MAR. 24, 1874 JULY 23, 1874 CHATHAM TOWNSHIP SANGAMON NOV. 6, 1860 CAMPBELL (CHANGED SEPT. 2, 1863) CLEAR LAKE M-VILLAGE SANGAMON NO AUG. 12, 1955 DEC. 20, 1955 CLEAR LAKE TOWNSHIP SANGAMON NOV. 6, 1860 COOPER TOWNSHIP SANGAMON NOV. 6, 1860 COTTON HILL TOWNSHIP SANGAMON NOV. 6, 1860 CURRAN TOWNSHIP SANGAMON NOV. 6, 1860 DAWSON M-VILLAGE SANGAMON NO MAR. 9, 1867 SEPT. 22, 1883 DEC. 20, 1883 DIVERNON M-VILLAGE SANGAMON NO JAN. 2, 1900 SEPT. 20, 1909 DIVERNON TOWNSHIP SANGAMON BEFORE 1921 FANCY CREEK TOWNSHIP SANGAMON NOV. 6, 1860 POWER (CHANGED SEPT. 11, 1861) GARDNER TOWNSHIP SANGAMON NOV. 6, 1860 GRANDVIEW M-VILLAGE SANGAMON NO JUNE 3, 1939 SEPT. 1, 1939 ILLIOPOLIS M-VILLAGE SANGAMON NO MAR. 6, 1867 SEPT. 25, 1883 NOV. 28, 1883 WILSON ILLIOPOLIS TOWNSHIP SANGAMON NOV. 6, 1860 ISLAND GROVE TOWNSHIP SANGAMON NOV. 6, 1860 JEROME M-VILLAGE SANGAMON NO MAR. 18, 1939 JUNE 17, 1939 LANESVILLE TOWNSHIP SANGAMON BEFORE 1921 LELAND GROVE M-CITY SANGAMON NO APR. 21, 1950 JULY 13, 1950 LOAMI M-VILLAGE SANGAMON NO JULY 29, 1875 OCT. 25, 1875 LOAMI TOWNSHIP SANGAMON NOV. 6, 1860 MAXWELL TOWNSHIP SANGAMON BEFORE 1921 MECHANICSBURG M-VILLAGE SANGAMON NO MAR. 26, 1869 MAR. 4, 1907 JUNE 29, 1907 MECHANICSBURG TOWNSHIP SANGAMON NOV. 6, 1860 NEW BERLIN M-VILLAGE SANGAMON NO FEB. 2, 1895 SEPT. 28, 1901 NEW BERLIN TOWNSHIP SANGAMON MAR. 3, 1869 PAWNEE M-VILLAGE SANGAMON NO DEC. 12, 1891 JUNE 26, 1894 PAWNEE TOWNSHIP SANGAMON NOV. 6, 1860 PLEASANT PLAINS M-VILLAGE SANGAMON NO APR. 8, 1876 JULY 24, 1876 RIVERTON M-VILLAGE SANGAMON NO AUG. 16, 1873 OCT. 25, 1901 HOWLET AND JAMESTOWN ROCHESTER M-VILLAGE SANGAMON NO JUNE 2, 1873 MAR. 12, 1874 ROCHESTER TOWNSHIP SANGAMON NOV. 6, 1860 SALISBURY TOWNSHIP SANGAMON NOV. 6, 1860 SACKETT (CHANGED SEPT. 9, 1867) SANGAMON COUNTY SANGAMON JAN. 30, 1821 SPRINGFIELD SHERMAN M-VILLAGE SANGAMON NO DEC. 30, 1959 FEB. 24, 1960 SOUTHERN VIEW M-VILLAGE SANGAMON NO MAR. 27, 1939 JULY 17, 1939 SPAULDING M-VILLAGE SANGAMON NO NOV. 20, 1905 FEB. 14, 1906 SPRINGFIELD M-CITY SANGAMON YES FEB. 3, 1840 APR. 6, 1882 APR. 20, 1882 SPRINGFIELD TOWNSHIP SANGAMON NOV. 6, 1860 TALKINGTON TOWNSHIP SANGAMON NOV. 6, 1860 THAYER M-VILLAGE SANGAMON NO OCT. 30, 1901 DEC. 17, 1901 WILLIAMS TOWNSHIP SANGAMON NOV. 6, 1860 WILLIAMSVILLE M-VILLAGE SANGAMON NO MAY 15, 1884 AUG. 13, 1884 BENTON WOODSIDE TOWNSHIP SANGAMON NOV. 6, 1860
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