Place:Rock, Wisconsin, United States

Watchers
NameRock
Alt namesRocksource: Getty Vocabulary Program
TypeCounty
Coordinates42.667°N 89.067°W
Located inWisconsin, United States     (1836 - )
See alsoBrown, Wisconsin, 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 County is a county in the U.S. state of Wisconsin. As of the 2010 census, the population was 160,331. Its county seat is Janesville.

Rock County comprises the Janesville-Beloit, WI Metropolitan Statistical Area and is included in the Madison-Janesville-Beloit, WI Combined Statistical Area.

Timeline

Date Event Source
1836 County formed Source:Red Book: American State, County, and Town Sources
1839 Land records recorded Source:Red Book: American State, County, and Town Sources
1840 Court 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 Marriage records recorded Source:Red Book: American State, County, and Town Sources
1840 No significant boundary changes after this year Source:Population of States and Counties of the United States: 1790-1990
1850 Probate records recorded Source:Red Book: American State, County, and Town Sources
1856 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 1,701
1850 20,750
1860 36,690
1870 39,030
1880 38,823
1890 43,220
1900 51,203
1910 55,538
1920 66,150
1930 74,206
1940 80,173
1950 92,778
1960 113,913
1970 131,970
1980 139,420
1990 139,510

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