Census 2010: Washington › Columbia County

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

Columbia County

Square miles: 873.5 Population per sq. mile: 4.7

  • 2010 population: 4,078
  • 2000 population: 4,064
  • Total change: 14 (0.3%)

See all Washington counties

2010 population by race/ethnicity

Diversity Index: 20.9%
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: 48.3 years old

Columbia County population

Race/ethnicity2010 population2010 percentage2000 population2000 percentage2000-2010 change
American Indian/Alaska Native581.4%391.0%48.7%
Native Hawaiian/Pacific Islander140.3%20.0%600.0%
Other race711.7%1112.7%-36.0%
Two or more races1092.7%771.9%41.6%
*Hispanic origin2546.2%2586.3%-1.6%

*Residents of Hispanic origin can be of any race.

Ages 0-17

Population: 823 (20.2%)

Diversity Index: 37.9%

Ages 18+

Population: 3,255 (79.8%)

Diversity Index: 19.5%

Race/ethnicityAges 0-17% of 0-17 totalAges 18+% of 18+ total
American Indian/Alaska Native151.8%431.3%
Native Hawaiian/Pacific Islander20.2%120.4%
Other race182.2%531.6%
Two or more races506.1%591.8%
*Hispanic origin10012.2%1544.7%

*Residents of Hispanic origin can be of any race.

Population2,022 (49.6%)
Median age47.7
Population2,056 (50.4%)
Median age49
Age breakdown by gender
AgePopulation% of totalMale% of male totalFemale% of female total
Under 1041310.1%21510.6%1989.6%
10 to 19 years47711.7%23411.6%24311.8%
20 to 29 years3408.3%1708.4%1708.3%
30 to 39 years3598.8%1819.0%1788.7%
40 to 49 years55313.6%28213.9%27113.2%
50 to 59 years64815.9%32516.1%32315.7%
60 to 69 years65616.1%32215.9%33416.2%
70 to 79 years3719.1%1879.2%1848.9%
80 and older2616.4%1065.2%1557.5%

*Residents of Hispanic origin can be of any race.

Household types
Families 2010
Avg. size 2.8
Households 1,156 (65.6%)
Non-families 2010
Avg. size 2.3
Households 606 (34.4%)
Family composition
Households ‡ 2010 % of households % of families
Husband-wife family, without children 669 38.0% ...
Husband-wife family, with children under 18 years 257 14.6% ...
Single male, no children (with other family) 30 1.7% ...
Single male, with children under 18 years 38 2.2% ...
Single female, no children (with other family) 67 3.8% ...
Single female, with children under 18 years 95 5.4% ...
Single male living alone 251 14.2% n/a
Single female living alone 266 15.1% n/a
Other non-family households (ex.: roommates) 89 5.1% n/a
Total 1,762 100% n/a
Family households 1,156 65.6% 100%
Families with children under 18 years 390 22.1% ...
Non-family households 606 34.4% n/a
All households with individuals 65 years and over 644 36.5% 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 size2.3
Avg. household size2.3
Vacancy Rate2010
Owner-occupied properties1.9%
Renter-occupied properties7.1%
Overall vacancy rate17.5%
Housing Units2010% of total
Vacant374 17.5%
For rent371.7%
Rented, but unoccupied30.1%
For sale251.2%
Sold, but unoccupied70.3%
Seasonal use only2029.5%
Other vacant units1004.7%

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