Rock County, Minnesota Population 2020

Rock County, Minnesota's estimated population is 9,336 with a growth rate of -0.42% in the past year according to the most recent United States census data. Rock County, Minnesota is the 71st largest county in Minnesota.

Year Population Growth Growth Rate
20209,336-39-0.42%
20199,375-39-0.41%
20189,414-39-0.41%
20179,453700.75%
20169,383-54-0.57%
20159,437600.64%
20149,377-50-0.53%
20139,427-53-0.56%
20129,480-118-1.23%
20119,598-60-0.62%
20109,658-148-1.51%
19909,806-897-8.38%
198010,703-643-5.67%
197011,346-518-4.37%
196011,8645865.20%
195011,2783453.16%
194010,933-29-0.26%
193010,962-3-0.03%
192010,9657437.27%
191010,2225545.73%
19009,6682,85141.82%
18906,8173,14885.80%
18803,6693,5312558.70%
1870138115500.00%
1860230.00%
2020 Growth Rate
-0.42%
County Website
Founded
May 23, 1857 (created) 1870 (organized)[1]
County Seat

Rock County, Minnesota Population Growth

Population by Race

Race Population Percentage
White9,05496.19%
Black or African American1071.14%
Asian971.03%
American Indian and Alaska Native680.72%
Two or More Races440.47%
Some Other Race430.46%

Rock County, Minnesota Population Pyramid 2020

Rock County, Minnesota Median Age

40.9


Total

40.4


Male

41.5


Female

Rock County, Minnesota Adults

There are 7,059 adults, (1,849 of whom are seniors) in Rock County, Minnesota.

Rock County, Minnesota Age Dependency

80.7

Age Dependency Ratio

35.5

Old Age Dependency Ratio

45.2

Child Dependency Ratio

Rock County, Minnesota Sex Ratio

Female

4,788

50.87%

Male

4,625

49.13%

Rock County, Minnesota Households and Families

Rock County, Minnesota Renter vs Owner Occupied by Household Type

Rock County, Minnesota Household Types

Type Owner Renter
Married86.8%13.2%
All74.5%25.5%
Female68.9%31.1%
Non Family55.1%44.9%
Male53.1%46.9%

74.5%

Rate of Home Ownership

Type Count Average Size Owned
All3,9782.374.5
Married2,3242.9286.8
Non Family1,2371.1155.1
Female2702.4468.9
Male1472.2853.1

2.79

Average Family Size

2.3

Average Household Size

5.9%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

Rock County, Minnesota Education

Education Attained Count Percentage
Less Than 9th Grade2574.02%
9th to 12th Grade2664.16%
High School Graduate2,14433.50%
Some College1,38821.69%
Associates Degree87113.61%
Bachelors Degree1,05216.44%
Graduate Degree4226.59%

Rock County, Minnesota Educational Attainment by Race

Name Total High School Bachelors
White6,0555,5701,429
Hispanic1381123
Black9090
Native American595920
Asian534121
Other Race2721
Multiple Races551

The highest rate of high school graduation is among black people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 39.62%.

Name Average Male Female
Overall$37,474$45,718$31,217
Less Than High School$18,750$21,042$13,889
High School Grad$32,467$40,812$26,613
Some College$37,679$48,381$30,625
Bachelors Degree$43,704$65,179$37,104
Graduate Degree$55,000$69,018$53,011

$37,474

Average Earnings

$45,718

Average Male

$31,217

Average Female

Rock County, Minnesota Language

Rock County, Minnesota Language by Age

Rock County, Minnesota Language

97.30% of Rock County, Minnesota residents speak only English, while 2.70% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.23% of the population.

Rock County, Minnesota Poverty

Rock County, Minnesota Poverty by Race

Name Total In Poverty Poverty Rate
White8,6257578.78%
Native663756.06%
Asian973637.11%
Hispanic2593513.51%
Black1022120.59%
Multiple422150.00%
Other421330.95%

9.74%

Overall Poverty Rate

7.90%

Male Poverty Rate

11.52%

Female Poverty Rate

Poverty in Rock County, Minnesota

The race most likely to be in poverty in Rock County, Minnesota is Native, with 56.06% below the poverty level.

The race least likely to be in poverty in Rock County, Minnesota is White, with 8.78% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.61%. Among those working part-time, it was 13.26%, and for those that did not work, the poverty rate was 19.91%.

Name Poverty
Less Than High School29.83%
Some College9.36%
High School8.31%
Bachelors or Greater3.76%
Name Poverty
Male Unemployed15.91%
Female Employed5.34%
Male Employed3.25%
Female Unemployed2.00%

Rock County, Minnesota Income

Rock County, Minnesota Income by Household Type

Name Median Mean
Households$59,890$74,349
Families$68,704$84,674
Married Families$76,570-
Non Families$26,901$45,193

Rock County, Minnesota Marital Status

Rock County, Minnesota Marital Status

Marriage Rates

63.8%

Overall Marriage Rate

63.3%

Male Marriage Rate

64.4%

Female Marriage Rate

Rock County, Minnesota Married by Age and Sex

Rock County, Minnesota Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Rock County, Minnesota Marital Status by Race

Rock County, Minnesota Veterans

504

Number of Veterans

476

Male Veterans

28

Female Veterans

War Veterans
Vietnam183
Korea114
First Gulf War66
Second Gulf War45
World War II29
Age Group Veterans
75+193
65 to 74123
35 to 5487
55 to 6482
18 to 3419
Name Veterans % of Total
White5017.38%
2 or More18.33%
Asian11.47%
Indian11.64%

$Rock County, Minnesota Veterans by Education

9.05%

Veteran Poverty Rate

32.13%

Veteran Disability Rate

Rock County, Minnesota Employment Status

66.3%

Labor Force Participation

64.9%

Employment Rate

1.9%

Unemployment Rate

Rock County, Minnesota Place of Birth

Origin of Non-Citizens

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

55.19%

Born in Minnesota

98.26%

Native Born

1.74%

Foreign Born

0.79%

Non Citizen

Place of Birth

98.26% of Rock County, Minnesota residents were born in the United States, with 55.19% having been born in Minnesota. 0.79% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

  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