Census 2010: Washington › Rock Island

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Rock Island

Square miles: 0.8 Population per sq. mile: 1,284.9

  • 2010 population: 788
  • 2000 population: 863
  • Total change: -75 (-8.7%)

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2010 population by race/ethnicity

Diversity Index: 55.3%
The USA TODAY Diversity Index represents the probability that two people from this area will have different ethnic backgrounds. A higher number reflects a more ethnically diverse population.

Age breakdown Median: 32.5 years old

Rock Island population

Race/ethnicity2010 population2010 percentage2000 population2000 percentage2000-2010 change
American Indian/Alaska Native40.5%131.5%-69.2%
Native Hawaiian/Pacific Islander10.1%00.0%n/a
Other race25732.6%17620.4%46.0%
Two or more races172.2%212.4%-19.0%
*Hispanic origin40551.4%26430.6%53.4%

*Residents of Hispanic origin can be of any race.

Ages 0-17

Population: 253 (32.1%)

Diversity Index: 72.3%

Ages 18+

Population: 535 (67.9%)

Diversity Index: 69.5%

Race/ethnicityAges 0-17% of 0-17 totalAges 18+% of 18+ total
American Indian/Alaska Native10.4%30.6%
Native Hawaiian/Pacific Islander00.0%10.2%
Other race12348.6%13425.0%
Two or more races104.0%71.3%
*Hispanic origin19075.1%21540.2%

*Residents of Hispanic origin can be of any race.

Population420 (53.3%)
Median age32.1
Population368 (46.7%)
Median age33.1
Age breakdown by gender
AgePopulation% of totalMale% of male totalFemale% of female total
Under 1013617.3%7918.8%5715.5%
10 to 19 years14218.0%7217.1%7019.0%
20 to 29 years10112.8%5412.9%4712.8%
30 to 39 years9011.4%4611.0%4412.0%
40 to 49 years10212.9%4711.2%5514.9%
50 to 59 years9211.7%5914.0%339.0%
60 to 69 years729.1%389.0%349.2%
70 to 79 years384.8%194.5%195.2%
80 and older151.9%61.4%92.5%

*Residents of Hispanic origin can be of any race.

Household types
Families 2010
Avg. size 3.7
Households 179 (68.3%)
Non-families 2010
Avg. size 3.0
Households 83 (31.7%)
Family composition
Households ‡ 2010 % of households % of families
Husband-wife family, without children 66 25.2% ...
Husband-wife family, with children under 18 years 68 26.0% ...
Single male, no children (with other family) 8 3.0% ...
Single male, with children under 18 years 9 3.4% ...
Single female, no children (with other family) 12 4.6% ...
Single female, with children under 18 years 16 6.1% ...
Single male living alone 43 16.4% n/a
Single female living alone 26 9.9% n/a
Other non-family households (ex.: roommates) 14 5.3% n/a
Total 262 100% n/a
Family households 179 68.3% 100%
Families with children under 18 years 93 35.5% ...
Non-family households 83 31.7% n/a
All households with individuals 65 years and over 58 22.1% n/a

‡ United States Census Bureau definitions:

Household — A household includes all of the people who occupy a housing unit. People not living in households are classified as living in group quarters. (Ex: college residence halls, skilled-nursing facilities, military barracks, …)
Family — A family includes a householder and one or more people living in the same household who are related to the householder by birth, marriage, or adoption.
Non-family Household — A householder living alone or with nonrelatives only.

Note: Family households and husband-wife-couple families do not include same-sex married couples even if the marriage was performed in a state issuing marriage certificates for same-sex couples. Same-sex-couple households are included in the family households category if there is at least one additional person related to the householder by birth or adoption. Same-sex-couple households with no relatives of the householder present are tabulated in nonfamily households.

Housing Units
Avg. household size3.1
Avg. household size2.8
Vacancy Rate2010
Owner-occupied properties1.7%
Renter-occupied properties2.2%
Overall vacancy rate5.4%
Housing Units2010% of total
Vacant15 5.4%
For rent20.7%
Rented, but unoccupied00.0%
For sale31.1%
Sold, but unoccupied00.0%
Seasonal use only82.9%
Other vacant units20.7%

Credits: Ryan Pitts, Mike Tigas Special thanks: USA Today Census team