Rock Island demographics profile

StatisticRock IslandWashingtonNational
Population9177,073,146318,558,162
Population density (sq mi)1,1219791
Median age35.537.637.7
Male/Female ratio1.0:11.0:11.0:1
Married (15yrs & older)60%56%55%
Families w/ Kids under 1844%44%43%
Speak English64%81%79%
Speak Spanish36%8%13%
Rock Island, WA has a population of 917 and is the 15,683rd largest city in the United States. The population density is 1,121 per sq mi which is 1059% higher than the Washington average and 1137% higher than the national average. The median age in Rock Island is 36 which is approximately 6% lower than the Washington average of 38. In Rock Island, 60% of the population over 15 years of age are married, 64% speak English and 36% speak Spanish. 59% of Rock Island residents were born in Washington, 20% were born out of state, 1% were born outside of the United States and 20% were foreign born.

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Did you know?

  • The population density in Rock Island is 1059% higher than Washington.
  • The median age in Rock Island is 6% lower than Washington.
  • In Rock Island 61.50% of the population is White.
  • In Rock Island 0.00% of the population is Black or African American.
  • In Rock Island 0.00% of the population is Asian.

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Compare Rock Island, WA Demographics To Other Cities

Rock Island population breakdown by race

RaceRock IslandWashingtonNational
White61.50%77.34%73.35%
Black or African American0.00%3.63%12.63%
Asian0.00%7.80%5.22%
American Indian2.07%1.33%0.82%
Native Hawaiian0.00%0.63%0.18%
Mixed race3.71%5.34%3.06%
Other race32.72%3.92%4.75%
In Rock Island, 42.6% of people are of Hispanic or Latino origin.
Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

Languages spoken

Place of birth by citizenship

Household income distribution

Source of income

Rock Island age breakdown

Marital status

Age of children in married couples

Source: The Rock Island, WA demographics data displayed above is derived from the 2016 United States Census Bureau American Community Survey (ACS).