Place:Rock Island, Illinois, United States

Watchers
NameRock Island
Alt namesRock Islandsource: Getty Vocabulary Program
TypeCounty
Coordinates41.45°N 90.517°W
Located inIllinois, United States     (1831 - )
See alsoJo Daviess, Illinois, United StatesParent county (source: Source:Population of States and Counties of the United States: 1790-1990)
source: Getty Thesaurus of Geographic Names
source: Family History Library Catalog


the text in this section is copied from an article in Wikipedia

Rock Island County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 152,046, which is an increase of 1.8% from 149,374 in 2000. Its county seat is Rock Island. It is one of the four counties that make up the Davenport-Moline-Rock Island Metropolitan Statistical Area.

Contents

History

the text in this section is copied from an article in Wikipedia

Rock Island County was formed in 1831 out of Jo Daviess County. It was named for Rock Island, an island in the Mississippi River now known as Arsenal Island.[1]

Timeline

Date Event Source
1831 County formed Source:Red Book: American State, County, and Town Sources
1833 Marriage records recorded Source:Red Book: American State, County, and Town Sources
1834 Court records recorded Source:Red Book: American State, County, and Town Sources
1835 Land records recorded Source:Red Book: American State, County, and Town Sources
1835 Probate records recorded Source:Red Book: American State, County, and Town Sources
1840 First census Source:Population of States and Counties of the United States: 1790-1990
1840 No significant boundary changes after this year Source:Population of States and Counties of the United States: 1790-1990
1861 Birth records recorded Source:Red Book: American State, County, and Town Sources

Population History

source: Source:Population of States and Counties of the United States: 1790-1990
Census Year Population
1840 2,610
1850 6,937
1860 21,005
1870 29,783
1880 38,302
1890 41,917
1900 55,249
1910 70,404
1920 92,297
1930 98,191
1940 113,323
1950 133,558
1960 150,991
1970 166,734
1980 165,968
1990 148,723

Note: The Rock Island-Whiteside county boundary differed slightly in 1860 from its alignment in 1840-50 and 1870-1990.

Research Tips

External links

  • Outstanding guide to Rock Island County family history and genealogy resources (FamilySearch Research Wiki). Birth, marriage, and death records, censuses, wills, deeds, county histories, cemeteries, churches, naturalizations, newspapers, libraries, and genealogical societies.
  • www.co.rock-island.il.us/


This page uses content from the English Wikipedia. The original content was at Rock Island County, Illinois. The list of authors can be seen in the page history. As with WeRelate, the content of Wikipedia is available under the Creative Commons Attribution/Share-Alike License.