Census 2010: Washington › Clark County

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(Mapping 100 largest census tracts, by 2010 population.)

Clark County

Square miles: 656.2 Population per sq. mile: 676.2

  • 2010 population: 425,363
  • 2000 population: 345,238
  • Total change: 80,125 (23.2%)

See all Washington counties

2010 population by race/ethnicity

Diversity Index: 33.2%
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: 36.7 years old

Clark County population

Race/ethnicity2010 population2010 percentage2000 population2000 percentage2000-2010 change
American Indian/Alaska Native3,6240.9%2,9100.8%24.5%
Native Hawaiian/Pacific Islander2,7080.6%1,2740.4%112.6%
Other race12,4852.9%6,8572.0%82.1%
Two or more races17,2194.0%10,6413.1%61.8%
*Hispanic origin32,1667.6%16,2484.7%98.0%

*Residents of Hispanic origin can be of any race.

Ages 0-17

Population: 112,575 (26.5%)

Diversity Index: 50.0%

Ages 18+

Population: 312,788 (73.5%)

Diversity Index: 31.6%

Race/ethnicityAges 0-17% of 0-17 totalAges 18+% of 18+ total
American Indian/Alaska Native9930.9%2,6310.8%
Native Hawaiian/Pacific Islander9520.8%1,7560.6%
Other race4,8134.3%7,6722.5%
Two or more races9,3108.3%7,9092.5%
*Hispanic origin13,57212.1%18,5945.9%

*Residents of Hispanic origin can be of any race.

Population209,954 (49.4%)
Median age35.9
Population215,409 (50.6%)
Median age37.6
Age breakdown by gender
AgePopulation% of totalMale% of male totalFemale% of female total
Under 1060,56814.2%31,03714.8%29,53113.7%
10 to 19 years62,86114.8%32,36515.4%30,49614.2%
20 to 29 years50,80111.9%25,14812.0%25,65311.9%
30 to 39 years58,15813.7%28,66913.7%29,48913.7%
40 to 49 years61,44914.4%30,54414.5%30,90514.3%
50 to 59 years58,55913.8%28,63613.6%29,92313.9%
60 to 69 years41,1459.7%19,9069.5%21,2399.9%
70 to 79 years19,1104.5%8,9324.3%10,1784.7%
80 and older12,7123.0%4,7172.2%7,9953.7%

*Residents of Hispanic origin can be of any race.

Household types
Families 2010
Avg. size 3.2
Households 110,672 (70.0%)
Non-families 2010
Avg. size 2.7
Households 47,427 (30.0%)
Family composition
Households ‡ 2010 % of households % of families
Husband-wife family, without children 47,567 30.1% ...
Husband-wife family, with children under 18 years 37,185 23.5% ...
Single male, no children (with other family) 3,632 2.3% ...
Single male, with children under 18 years 4,455 2.8% ...
Single female, no children (with other family) 7,197 4.6% ...
Single female, with children under 18 years 10,636 6.7% ...
Single male living alone 16,393 10.4% n/a
Single female living alone 20,133 12.7% n/a
Other non-family households (ex.: roommates) 10,901 6.9% n/a
Total 158,099 100% n/a
Family households 110,672 70.0% 100%
Families with children under 18 years 52,276 33.1% ...
Non-family households 47,427 30.0% n/a
All households with individuals 65 years and over 35,395 22.4% 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 size2.7
Avg. household size2.5
Vacancy Rate2010
Owner-occupied properties2.1%
Renter-occupied properties6%
Overall vacancy rate5.6%
Housing Units2010% of total
Vacant9,314 5.6%
For rent3,4502.1%
Rented, but unoccupied1740.1%
For sale2,2201.3%
Sold, but unoccupied4060.2%
Seasonal use only8680.5%
Other vacant units2,1961.3%

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