Rock Island, Washington Population 2020

1,172

Rock Island is a city located in Washington. With a 2020 population of 1,172, it is the 196th largest city in Washington and the 9683rd largest city in the United States. Rock Island is currently growing at a rate of 5.40% annually and its population has increased by 48.73% since the most recent census, which recorded a population of 788 in 2010. Spanning over 1 miles, Rock Island has a population density of 1,429 people per square mile.

The average household income in Rock Island is $49,630 with a poverty rate of 11.89%. The median rental costs in recent years comes to $709 per month, and the median house value is $149,600. The median age in Rock Island is 31.1 years, 31.2 years for males, and 30.9 years for females. For every 100 females there are 101.5 males.

Rock Island Demographics

According to the most recent ACS, the racial composition of Rock Island was:

  • White: 53.72%
  • Other race: 40.59%
  • Two or more races: 3.93%
  • Native American: 1.76%
  • Black or African American: 0.00%
  • Asian: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
The current population of Rock Island, Washington is 1,172, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 1,052.The last official US Census in 2010 recorded the population at 788.

Rock Island, Washington Population 2020

Population by Race

Race Population Percentage
White64253.72%
Some Other Race48540.59%
Two or More Races473.93%
American Indian and Alaska Native211.76%

Rock Island Population Pyramid 2020

Rock Island Median Age

31.1


Total

31.2


Male

30.9


Female

Rock Island Adults

There are 808 adults, (125 of whom are seniors) in Rock Island.

Rock Island Age Dependency

75

Age Dependency Ratio

18.3

Old Age Dependency Ratio

56.7

Child Dependency Ratio

Rock Island Sex Ratio

Female

593

49.62%

Male

602

50.38%

Rock Island Households and Families

Rock Island Renter vs Owner Occupied by Household Type

Rock Island Household Types

Type Owner Renter
Married81.6%18.4%
Female78.6%21.4%
All76.6%23.4%
Non Family71.2%28.8%
Male61.1%38.9%

76.6%

Rate of Home Ownership

Type Count Average Size Owned
All3853.176.6
Married1793.981.6
Non Family1321.5471.2
Female564.4178.6
Male182.6161.1

3.77

Average Family Size

3.1

Average Household Size

10.1%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

Rock Island Education

Education Attained Count Percentage
Less Than 9th Grade14521.55%
9th to 12th Grade11016.34%
High School Graduate23534.92%
Some College12718.87%
Associates Degree334.90%
Bachelors Degree131.93%
Graduate Degree101.49%

Rock Island Educational Attainment by Race

Name Total High School Bachelors
White35830915
Hispanic284898
Other Race234756
Native American2110
Multiple Races1010

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

The highest rate of bachelors degrees is among white people with a rate of 4.19%.

Name Average Male Female
Overall$27,500$27,830$26,042
Less Than High School$26,484$29,219$21,477
High School Grad$28,393$28,017$37,813
Some College$$$51,667
Bachelors Degree$47,917$$
Graduate Degree$$$

$27,500

Average Earnings

$27,830

Average Male

$26,042

Average Female

Rock Island Language

Rock Island Language by Age

Rock Island Language

46.57% of Rock Island residents speak only English, while 53.43% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 52.96% of the population.

Rock Island Poverty

Rock Island Poverty by Race

Name Total In Poverty Poverty Rate
White47011424.26%
Hispanic660131.97%
Native211152.38%
Other48591.86%

11.89%

Overall Poverty Rate

10.26%

Male Poverty Rate

13.54%

Female Poverty Rate

Poverty in Rock Island

The race most likely to be in poverty in Rock Island is Native, with 52.38% below the poverty level.

The race least likely to be in poverty in Rock Island is Other, with 1.86% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.86%. Among those working part-time, it was 12.94%, and for those that did not work, the poverty rate was 16.67%.

Name Poverty
High School13.19%
Bachelors or Greater13.04%
Some College11.88%
Less Than High School9.80%
Name Poverty
Female Unemployed0.00%
Male Unemployed26.47%
Male Employed8.73%
Female Employed4.35%

Rock Island Income

Rock Island Income by Household Type

Name Median Mean
Households$48,438$49,630
Families$55,234$60,033
Married Families$62,821-
Non Families$23,214$27,786

Rock Island Marital Status

Rock Island Marital Status

Marriage Rates

45.4%

Overall Marriage Rate

48.0%

Male Marriage Rate

42.7%

Female Marriage Rate

Rock Island Married by Age and Sex

Rock Island Marriage

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

Rock Island Marital Status by Race

Rock Island Veterans

68

Number of Veterans

55

Male Veterans

13

Female Veterans

War Veterans
Vietnam48
First Gulf War10
World War II7
Korea
Second Gulf War

$Rock Island Veterans by Education

19.12%

Veteran Poverty Rate

97.06%

Veteran Disability Rate

Rock Island Employment Status

55.4%

Labor Force Participation

51.4%

Employment Rate

7.2%

Unemployment Rate

Rock Island 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

55.73%

Born in Washington

73.47%

Native Born

26.53%

Foreign Born

20.33%

Non Citizen

Place of Birth

73.47% of Rock Island residents were born in the United States, with 55.73% having been born in Washington. 20.33% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Year Population Growth Annual Growth Rate
20201,172605.40%
20191,112605.70%
20181,052313.04%
20171,021606.24%
2016961485.26%
2015913212.35%
201489250.56%
201388760.68%
201288150.57%
20118760.00%
20108760.00%