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
ADELINE M-VILLAGE OGLE NO AUG. 21, 1882 NOV. 8, 1882 BROOKVILLE TOWNSHIP OGLE NOV. 6, 1849 BUFFALO TOWNSHIP OGLE NOV. 6, 1849 BYRON M-CITY OGLE NO AUG. 9, 1878 OCT. 23, 1879 BYRON TOWNSHIP OGLE NOV. 6, 1849 CRESTON M-VILLAGE OGLE NO APR. 1, 1869 DEC. 7, 1872 FEB. 25, 1873 DEMENT DAVIS JUNCTION M-VILLAGE OGLE NO NOV. 5, 1977 JUNE 12, 1978 DEMENT TOWNSHIP OGLE FEB. 13, 1856 EAGLE POINT TOWNSHIP OGLE SEPT. 1869 FLAGG TOWNSHIP OGLE NOV. 6, 1849 FORRESTON M-VILLAGE OGLE NO APR. 1, 1869 AUG. 2, 1888 SEPT. 5, 1888 FORRESTON TOWNSHIP OGLE MAR. 4, 1857 GRAND DETOUR TOWNSHIP OGLE NOV. 6, 1849 HILLCREST M-VILLAGE OGLE NO MAR. 27, 1958 JUNE 6, 1958 LAFAYETTE TOWNSHIP OGLE NOV. 6, 1849 LEAF RIVER M-VILLAGE OGLE NO AUG. 17, 1882 NOV. 10, 1882 LEAF RIVER TOWNSHIP OGLE NOV. 6, 1849 LINCOLN TOWNSHIP OGLE SEPT. 1869 HALDAN (CHANGED DEC. 1873) LYNNVILLE TOWNSHIP OGLE NOV. 6, 1849 MARION TOWNSHIP OGLE NOV. 6, 1849 MARYLAND TOWNSHIP OGLE NOV. 6, 1849 HARRISON (CHANGED NOV. 12, 1850) MONROE TOWNSHIP OGLE NOV. 6, 1849 MOUNT MORRIS TOWNSHIP OGLE NOV. 6, 1849 MT. MORRIS M-VILLAGE OGLE NO FEB. 13, 1857 MAR. 27, 1875 JUNE 16, 1875 NASHUA TOWNSHIP OGLE NOV. 6, 1849 OGLE COUNTY OGLE JAN. 16, 1836 OREGON OREGON M-CITY OGLE YES FEB. 21, 1843 MAR. 29, 1873 JULY 9, 1873 FLORENCE OREGON TOWNSHIP OGLE NOV. 6, 1849 PINE CREEK TOWNSHIP OGLE NOV. 6, 1849 PINE ROCK TOWNSHIP OGLE NOV. 6, 1849 EAGLE (CHANGED NOV. 12, 1850) POLO M-CITY OGLE NO FEB. 16, 1857 JUNE 25, 1877 JULY 13, 1877 ROCHELLE M-CITY OGLE NO FEB. 22, 1861 SEPT. 20, 1872 JAN. 27, 1873 LANE ROCKVALE TOWNSHIP OGLE NOV. 6, 1849 BROOKLYN (CHANGED NOV. 12, 1850) SCOTT TOWNSHIP OGLE NOV. 6, 1849 STILLMAN VALLEY M-VILLAGE OGLE NO DEC. 11, 1911 MAR. 13, 1912 TAYLOR TOWNSHIP OGLE NOV. 6, 1849 WHITE ROCK TOWNSHIP OGLE NOV. 6, 1849 WOOSUNG TOWNSHIP OGLE SEPT. 15, 1880
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