Rock County, Wisconsin Population 2018

Rock County, Wisconsin's estimated population is 162,309 with a growth rate of 0.82% in the past year according to the most recent United States census data. Rock County, Wisconsin is the 9th largest county in Wisconsin.

Year Population Growth Growth Rate
2017162,3091,3230.82%
2016160,986-435-0.27%
2016161,4213620.22%
2015161,059890.06%
2014160,9705970.37%
2013160,3732810.18%
2012160,0922100.13%
2011159,882-381-0.24%
2010160,26320,75314.88%
1990139,510900.06%
1980139,4207,4505.65%
1970131,97018,05715.85%
1960113,91321,13522.78%
195092,77812,60515.72%
194080,1735,9678.04%
193074,2068,05612.18%
192066,15010,61219.11%
191055,5384,3358.47%
190051,2037,98318.47%
189043,2204,39711.33%
188038,823-207-0.53%
187039,0302,3406.38%
186036,69015,94076.82%
185020,75019,0491119.87%
18401,7010.00%

Rock County, Wisconsin Population Growth

Population Data via

Population by Race

Race Population
White143,993
Two or More Races6,388
Black or African American5,568
Some Other Race2,761
Asian1,809
American Indian and Alaska Native467

Race Data via US Census (2016 ACS 5-Year Survey)

Rock County, Wisconsin Population Pyramid 2018

0%2%4%6%8% Male Population0%2%4%6%8% Female Population80757065605550454035302520151050

Data via US Census (2016 ACS 5-Year Survey): Table S0101

Rock County, Wisconsin Median Age

39.1


Total

37.8


Male

40.5


Female

Rock County, Wisconsin Adults

There are 122,510 adults, (24,148 of which are seniors) in Rock County, Wisconsin.

Rock County, Wisconsin Age Dependency

63.8

Age Dependency Ratio

24.6

Old Age Dependency Ratio

39.1

Child Dependency Ratio

Rock County, Wisconsin Sex Ratio

Female

81,775

50.80%

Male

79,211

49.20%

Rock County, Wisconsin Households and Families

Rock County, Wisconsin Renter vs Owner Occupied by Household Type

Rock County, Wisconsin Household Types

Type Owner Renter
Married86.1%13.9%
Male70.7%29.3%
All68.9%31.1%
Non Family54.5%45.5%
Female44.8%55.2%

68.9%

Rate of Home Ownership

Rock County, Wisconsin Households by Type

Type Count Average Size Owned
All63,9412.4768.9
Married30,0613.0586.1
Non Family22,0701.2354.5
Female8,5603.3144.8
Male3,2503.3270.7

2.99

Average Family Size

2.47

Average Household Size

8.2%

Unmarried (Opposite Sex)

0.5%

Unmarried (Same Sex)

Rock County, Wisconsin Households

Rock County, Wisconsin Education

Rock County, Wisconsin Educational Attainment by Sex (over 25)

Education Attained Count Percentage
Less Than 9th Grade3,3443.09%
9th to 12th Grade8,1327.51%
High School Graduate39,53536.49%
Some College23,66621.84%
Associates Degree11,17510.31%
Bachelors Degree14,89213.74%
Graduate Degree7,6087.02%

Rock County, Wisconsin Educational Attainment by Race

Name Total High School Bachelors
White95,85887,75921,061
Hispanic5,9973,720437
Black3,2562,537376
Multiple Races2,1011,802246
Other Race1,50394457
Asian1,128987407
Native American26523741

The highest rate of high school graduation is among white people with a rate of 91.55%.

The highest rate of bachelors degrees is among white people with a rate of 36.08%.

Rock County, Wisconsin Earnings by Educational Attainment

Name Average Male Female
Overall$33,712$41,676$27,544
Less Than High School$24,602$28,876$18,836
High School Grad$28,313$35,725$22,406
Some College$32,343$41,958$26,670
Bachelors Degree$47,155$58,248$36,863
Graduate Degree$61,711$67,143$57,650

$33,712

Average Earnings

$41,676

Average Male

$27,544

Average Female

Rock County, Wisconsin Language

Rock County, Wisconsin Language by Age

Rock County, Wisconsin Language

91.69% of Rock County, Wisconsin residents speak only English, while 8.31% speak other languages. The largest non-English language is Spanish, which is spoken by 6.15% of the population.

Rock County, Wisconsin Poverty

Rock County, Wisconsin Poverty by Race

Name Total In Poverty Poverty Rate
White131,78014,67411.14%
Hispanic13,0124,46434.31%
Multiple6,2302,02932.57%
Black5,2741,96737.30%
Other2,73372426.49%
Asian1,73130817.79%
Native46721846.68%

14.75%

Overall Poverty Rate

13.69%

Male Poverty Rate

15.77%

Female Poverty Rate

Poverty in Rock County, Wisconsin

The race most likely to be in poverty in Rock County, Wisconsin is Native, with 46.68% below the poverty level.

The race least likely to be in poverty in Rock County, Wisconsin is White, with 11.14% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.28%. Among those working part-time, it was 17.01%, and for those that did not work, the poverty rate was 19.69%.

Rock County, Wisconsin Poverty Rate by Education

Name Poverty
Less Than High School23.82%
High School12.26%
Some College9.73%
Bachelors or Greater3.87%

Rock County, Wisconsin Poverty Rate by Employment Status and Sex

Name Poverty
Female Unemployed40.83%
Male Unemployed24.88%
Female Employed8.50%
Male Employed6.12%

Rock County, Wisconsin Income

Rock County, Wisconsin Income by Household Type

Name Median Mean
Households$50,968$63,661
Families$61,315$73,375
Married Families$74,036$86,499
Non Families$31,413$41,076

Rock County, Wisconsin Marital Status

Rock County, Wisconsin Marital Status

Marriage Rates

49.1%

Overall Marriage Rate

50.7%

Male Marriage Rate

47.6%

Female Marriage Rate

Rock County, Wisconsin Married by Age and Sex

Rock County, Wisconsin Marriage

The age group where males are most likely to be married is Over65, while the female age group most likely to be married is 55To64.

Rock County, Wisconsin Marital Status by Race

Rock County, Wisconsin Veterans

Rock County, Wisconsin Veterans by War

11,041

Number of Veterans

10,378

Male Veterans

663

Female Veterans

Name Veterans
Vietnam4,106
First Gulf War1,457
Korea1,020
Second Gulf War999
World War II629

Rock County, Wisconsin Veterans by Age

Name Veterans
65 to 742,877
75+2,751
35 to 542,386
55 to 642,370
18 to 34657

Rock County, Wisconsin Veterans by Race

Name Veterans % of Total
White10,3899.26%
Black3318.46%
2 or More2608.85%
Hispanic1281.70%
Asian382.74%
Indian144.35%
Other90.51%

Rock County, Wisconsin Veterans by Education

6.24%

Veteran Poverty Rate

27.37%

Veteran Disability Rate

Rock County, Wisconsin Employment Status

Rock County, Wisconsin Employment by Age

65.4%

Labor Force Participation

60.6%

Employment Rate

7.4%

Unemployment Rate

Rock County, Wisconsin Employment by Race

Rock County, Wisconsin Employment by Education

Population of Cities in Rock County, Wisconsin

City 2010 Census 2016 Estimated Growth Growth Rate
Janesville63621641595380.85%
Beloit3700536757-248-0.67%
Milton55555580250.45%
Edgerton 541855521342.47%
Evansville503152652344.65%
Brodhead 32933276-17-0.52%
Clinton21532126-27-1.25%
Orfordville14421490483.33%
Footville808803-5-0.62%
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990