Census 2010: Washington › Richland

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Square miles: 39.1 Population per sq. mile: 1,345.5

  • 2010 population: 48,058
  • 2000 population: 38,708
  • Total change: 9,350 (24.2%)

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2010 population by race/ethnicity

Diversity Index: 31.2%
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: 39.4 years old

Richland population

Race/ethnicity2010 population2010 percentage2000 population2000 percentage2000-2010 change
American Indian/Alaska Native3910.8%2930.8%33.4%
Native Hawaiian/Pacific Islander520.1%410.1%26.8%
Other race1,2882.7%7181.9%79.4%
Two or more races1,5483.2%8932.3%73.3%
*Hispanic origin3,7287.8%1,8264.7%104.2%

*Residents of Hispanic origin can be of any race.

Ages 0-17

Population: 11,640 (24.2%)

Diversity Index: 48.5%

Ages 18+

Population: 36,420 (75.8%)

Diversity Index: 29.8%

Race/ethnicityAges 0-17% of 0-17 totalAges 18+% of 18+ total
American Indian/Alaska Native1090.9%2820.8%
Native Hawaiian/Pacific Islander180.2%340.1%
Other race4503.9%8382.3%
Two or more races8137.0%7352.0%
*Hispanic origin1,57313.5%2,1555.9%

*Residents of Hispanic origin can be of any race.

Population23,551 (49.0%)
Median age38.2
Population24,507 (51.0%)
Median age40.3
Age breakdown by gender
AgePopulation% of totalMale% of male totalFemale% of female total
Under 106,31113.1%3,17513.5%3,13612.8%
10 to 19 years6,46413.5%3,29114.0%3,17313.0%
20 to 29 years5,99412.5%3,00512.8%2,98912.2%
30 to 39 years5,64211.7%2,78611.8%2,85611.7%
40 to 49 years6,45813.4%3,15313.4%3,30513.5%
50 to 59 years7,15114.9%3,55415.1%3,59714.7%
60 to 69 years5,18410.8%2,54710.8%2,63710.8%
70 to 79 years2,8105.8%1,2935.5%1,5176.2%
80 and older2,0444.3%7473.2%1,2975.3%

*Residents of Hispanic origin can be of any race.

Household types
Families 2010
Avg. size 3.0
Households 12,974 (65.8%)
Non-families 2010
Avg. size 2.4
Households 6,733 (34.2%)
Family composition
Households ‡ 2010 % of households % of families
Husband-wife family, without children 6,239 31.7% 48.1%
Husband-wife family, with children under 18 years 3,936 20.0% n/a
Single male, no children (with other family) 349 1.8% 2.7%
Single male, with children under 18 years 478 2.4% n/a
Single female, no children (with other family) 732 3.7% 5.6%
Single female, with children under 18 years 1,240 6.3% n/a
Single male living alone 2,533 12.8% n/a
Single female living alone 3,026 15.3% n/a
Other non-family households (ex.: roommates) 1,174 6.0% n/a
Total 19,707 100% n/a
Family households 12,974 65.8% 100%
Families with children under 18 years 5,654 28.7% n/a
Non-family households 6,733 34.2% n/a
All households with individuals 65 years and over 4,991 25.3% 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 size2.6
Avg. household size2.2
Vacancy Rate2010
Owner-occupied properties1.6%
Renter-occupied properties5.4%
Overall vacancy rate5.6%
Housing Units2010% of total
Vacant1,169 5.6%
For rent3811.8%
Rented, but unoccupied670.3%
For sale2081.0%
Sold, but unoccupied720.3%
Seasonal use only2421.2%
Other vacant units1991.0%

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