Rock Island County, Illinois
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Rock Island is a county in Illinois. It was formed in 1831 (1833) from the following county/ies: Jo Daviess. Rock Island began keeping birth records in 1861, marriage records in 1833, and death records in 1877. It began keeping land records in 1835, probate records in 1835, and court records in 1834. For more information, contact the county at 1504 Third Ave., Rock Island 61201. On the attached map, Rock Island is located at C2.
For information about the state of Illinois see Illinois Family History Research.