Rock County, Minnesota Population 2021

Rock County, Minnesota's estimated population is 9,143 with a growth rate of -0.93% in the past year according to the most recent United States census data. Rock County, Minnesota is the 72nd largest county in Minnesota. The 2010 Population was 9,658 and has seen a growth of -5.33% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
20219,143-86-0.93%
20209,229-86-0.92%
20199,315-86-0.91%
20189,401-58-0.61%
20179,459670.71%
20169,392-50-0.53%
20159,442630.67%
20149,379-49-0.52%
20139,428-53-0.56%
20129,481-118-1.23%
20119,599-59-0.61%
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%
2021 Growth Rate
-0.93%
County Website
Founded
May 23, 1857
County Seat
2010 Population
9,658
Growth Since 2010
-5.33%
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Rock County, Minnesota Population Growth

Population by Race

Race Population Percentage
White9,06496.41%
Asian1001.06%
Two or More Races971.03%
Black or African American870.93%
American Indian and Alaska Native320.34%
Some Other Race220.23%
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Rock County, Minnesota Population by Race

Rock County, Minnesota Population Pyramid $2021

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Rock County, Minnesota Median Age

40.8


Total

40.4


Male

41.4


Female

Rock County, Minnesota Adults

There are 7,007 adults, (1,866 of whom are seniors) in Rock County, Minnesota.

Rock County, Minnesota Age Dependency

82.9

Age Dependency Ratio

36.3

Old Age Dependency Ratio

46.6

Child Dependency Ratio

Rock County, Minnesota Sex Ratio

Female

4,801

51.06%

Male

4,601

48.94%

Rock County, Minnesota Population by Age

Rock County, Minnesota Renter vs Owner Occupied by Household Type

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Rock County, Minnesota Household Types

Type Owner Renter
Married87.5%12.5%
Male76.9%23.1%
All75.5%24.5%
Female58%42%
Non Family56.4%43.6%

75.5%

Rate of Home Ownership

Rock County, Minnesota Households and Families

Type Count Average Size Owned
All3,9142.3475.5
Married2,3062.9587.5
Non Family1,2061.1756.4
Female2812.3858
Male1212.0276.9

2.82

Average Family Size

2.34

Average Household Size

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Rock County, Minnesota Households by Type

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Education Attained Count Percentage
Less Than 9th Grade2093.29%
9th to 12th Grade2193.44%
High School Graduate2,09933.01%
Some College1,41022.17%
Associates Degree91114.33%
Bachelors Degree1,08517.06%
Graduate Degree4266.70%
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Rock County, Minnesota Educational Attainment by Sex (over 25)

Rock County, Minnesota Educational Attainment by Race

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Race Total High School Bachelors
White6,0415,6391,418
Hispanic14812812
Asian565136
Black5151
2+ Races353518
Native American282727
Other Race107

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 native american people with a rate of 96.43%.

Rock County, Minnesota Educational Attainment by Race

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Name Average Male Female
Overall$39,503$46,347$31,706
Less Than 9th Grade$21,250$21,806$17,500
High School Graduate$34,396$42,446$26,875
Some College$38,675$49,141$30,208
Bachelors Degree$46,442$67,000$39,194
Graduate Degree$62,813$76,083$54,500

$39,503

Average Earnings

$46,347

Average Male

$31,706

Average Female

Rock County, Minnesota Earnings by Educational Attainment

Rock County, Minnesota Language by Age

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Rock County, Minnesota Language

97.40% of Rock County, Minnesota residents speak only English, while 2.60% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.28% of the population.

Rock County, Minnesota Language

Rock County, Minnesota Poverty by Race

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Name Total In Poverty Poverty Rate
White8,5887218.40%
Asian1004545.00%
Multiple953738.95%
Hispanic255114.31%
Black811113.58%

9.01%

Overall Poverty Rate

7.85%

Male Poverty Rate

10.12%

Female Poverty Rate

Poverty in Rock County, Minnesota

The race most likely to be in poverty in Rock County, Minnesota is Asian, with 45.00% below the poverty level.

The race least likely to be in poverty in Rock County, Minnesota is Hispanic, with 4.31% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.19%. Among those working part-time, it was 13.46%, and for those that did not work, the poverty rate was 15.24%.

Rock County, Minnesota Poverty

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Name Poverty
Less Than 9th Grade27.13%
Some College8.82%
High School6.38%
Bachelors or Greater3.91%

Rock County, Minnesota Poverty Rate by Education

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Rate Poverty
Male Unemployed25.00%
Female Employed5.34%
Female Unemployed4.76%
Male Employed3.90%

Rock County, Minnesota Poverty Rate by Employment Status and Sex

Rock County, Minnesota Income by Household Type

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Name Median Mean
Households$63,005$76,060
Families$69,929$86,762
Married Families$80,268-
Non Families$27,647$48,144
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Income by Household Type

Rock County, Minnesota Marital Status

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Marriage Rates

64.2%

Overall Marriage Rate

63.7%

Male Marriage Rate

64.7%

Female Marriage Rate

Rock County, Minnesota Married by Age and Sex

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Rock County, Minnesota Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 45-54.

Rock County, Minnesota Marital Status by Race

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Rock County, Minnesota Marital Status

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497

Number of Veterans

465

Male Veterans

32

Female Veterans

War Veterans
Vietnam170
Korea107
First Gulf War63
Second Gulf War44
World War II39

Rock County, Minnesota Veterans by War

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Age Group Veterans
75+188
65 to 74119
35 to 5492
55 to 6489
18 to 349

Rock County, Minnesota Veterans by Age

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Name Veterans % of Total
White4887.18%
2+ Races614.29%
Asian35.00%

Rock County, Minnesota Veterans by Race

Rock County, Minnesota Veterans by Education

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7.50%

Veteran Poverty Rate

29.55%

Veteran Disability Rate

Rock County, Minnesota Veterans by Education

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66.8%

Labor Force Participation

65.6%

Employment Rate

1.7%

Unemployment Rate

Rock County, Minnesota Employment by Age

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Rock County, Minnesota Employment by Race

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Rock County, Minnesota Employment by Education

Origin of Non-Citizens

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

Origin of Naturalized Citizens

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53.57%

Born in Rock County, Minnesota

98.44%

Native Born

1.56%

Foreign Born

0.55%

Non Citizen

1.01%

Naturalized

Place of Birth

98.44% of Rock County, Minnesota residents were born in the United States, with 53.57% having been born in Minnesota. 0.55% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Rock County, Minnesota Place of Birth

  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

Sources