Census 2010: Washington › Whitman County

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

Whitman County

Square miles: 2,177.6 Population per sq. mile: 20.7

  • 2010 population: 44,776
  • 2000 population: 40,740
  • Total change: 4,036 (9.9%)

See all Washington counties

2010 population by race/ethnicity

Diversity Index: 32.2%
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: 24.4 years old

Whitman County population

Race/ethnicity2010 population2010 percentage2000 population2000 percentage2000-2010 change
American Indian/Alaska Native3080.7%2980.7%3.4%
Native Hawaiian/Pacific Islander1030.2%1090.3%-5.5%
Other race6491.4%4981.2%30.3%
Two or more races1,6303.6%1,0722.6%52.1%
*Hispanic origin2,0404.6%1,2193.0%67.4%

*Residents of Hispanic origin can be of any race.

Ages 0-17

Population: 6,741 (15.1%)

Diversity Index: 40.0%

Ages 18+

Population: 38,035 (84.9%)

Diversity Index: 33.0%

Race/ethnicityAges 0-17% of 0-17 totalAges 18+% of 18+ total
American Indian/Alaska Native691.0%2390.6%
Native Hawaiian/Pacific Islander70.1%960.3%
Other race1071.6%5421.4%
Two or more races4406.5%1,1903.1%
*Hispanic origin4616.8%1,5794.2%

*Residents of Hispanic origin can be of any race.

Population22,806 (50.9%)
Median age24
Population21,970 (49.1%)
Median age24.9
Age breakdown by gender
AgePopulation% of totalMale% of male totalFemale% of female total
Under 103,7888.5%1,9778.7%1,8118.2%
10 to 19 years7,86117.6%3,86116.9%4,00018.2%
20 to 29 years15,01533.5%8,06135.3%6,95431.7%
30 to 39 years4,1309.2%2,1329.3%1,9989.1%
40 to 49 years3,8678.6%1,9078.4%1,9608.9%
50 to 59 years4,1799.3%2,1179.3%2,0629.4%
60 to 69 years3,0226.7%1,4686.4%1,5547.1%
70 to 79 years1,6013.6%7583.3%8433.8%
80 and older1,3132.9%5252.3%7883.6%

*Residents of Hispanic origin can be of any race.

Household types
Families 2010
Avg. size 2.9
Households 8,130 (46.5%)
Non-families 2010
Avg. size 2.2
Households 9,338 (53.5%)
Family composition
Households ‡ 2010 % of households % of families
Husband-wife family, without children 4,078 23.3% ...
Husband-wife family, with children under 18 years 2,633 15.1% ...
Single male, no children (with other family) 256 1.5% ...
Single male, with children under 18 years 211 1.2% ...
Single female, no children (with other family) 345 2.0% ...
Single female, with children under 18 years 607 3.5% ...
Single male living alone 2,813 16.1% n/a
Single female living alone 2,897 16.6% n/a
Other non-family households (ex.: roommates) 3,628 20.8% n/a
Total 17,468 100% n/a
Family households 8,130 46.5% 100%
Families with children under 18 years 3,451 19.8% ...
Non-family households 9,338 53.5% n/a
All households with individuals 65 years and over 3,047 17.4% 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 size2.4
Avg. household size2.1
Vacancy Rate2010
Owner-occupied properties2.7%
Renter-occupied properties8.2%
Overall vacancy rate9.6%
Housing Units2010% of total
Vacant1,855 9.6%
For rent8584.4%
Rented, but unoccupied320.2%
For sale2221.1%
Sold, but unoccupied550.3%
Seasonal use only1961.0%
Other vacant units4922.5%

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