Census 2010: Washington › Grant County

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

Grant County

Square miles: 2,791.3 Population per sq. mile: 33.3

  • 2010 population: 89,120
  • 2000 population: 74,698
  • Total change: 14,422 (19.3%)

See all Washington counties

2010 population by race/ethnicity

Diversity Index: 55.9%
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: 32.1 years old

Grant County population

Race/ethnicity2010 population2010 percentage2000 population2000 percentage2000-2010 change
American Indian/Alaska Native1,0881.2%8631.2%26.1%
Native Hawaiian/Pacific Islander710.1%530.1%34.0%
Other race18,15420.4%12,96717.4%40.0%
Two or more races3,1013.5%2,2473.0%38.0%
*Hispanic origin34,16338.3%22,47630.1%52.0%

*Residents of Hispanic origin can be of any race.

Ages 0-17

Population: 27,225 (30.5%)

Diversity Index: 75.7%

Ages 18+

Population: 61,895 (69.5%)

Diversity Index: 64.9%

Race/ethnicityAges 0-17% of 0-17 totalAges 18+% of 18+ total
American Indian/Alaska Native3231.2%7651.2%
Native Hawaiian/Pacific Islander230.1%480.1%
Other race7,46127.4%10,69317.3%
Two or more races1,5455.7%1,5562.5%
*Hispanic origin14,51353.3%19,65031.7%

*Residents of Hispanic origin can be of any race.

Population45,420 (51.0%)
Median age31.3
Population43,700 (49.0%)
Median age32.9
Age breakdown by gender
AgePopulation% of totalMale% of male totalFemale% of female total
Under 1015,49617.4%7,85917.3%7,63717.5%
10 to 19 years14,54316.3%7,55916.6%6,98416.0%
20 to 29 years12,10913.6%6,51614.3%5,59312.8%
30 to 39 years11,17312.5%5,63612.4%5,53712.7%
40 to 49 years10,60911.9%5,47012.0%5,13911.8%
50 to 59 years10,33111.6%5,25211.6%5,07911.6%
60 to 69 years7,7978.7%3,9008.6%3,8978.9%
70 to 79 years4,3654.9%2,1224.7%2,2435.1%
80 and older2,6973.0%1,1062.4%1,5913.6%

*Residents of Hispanic origin can be of any race.

Household types
Families 2010
Avg. size 3.4
Households 21,800 (72.6%)
Non-families 2010
Avg. size 2.9
Households 8,241 (27.4%)
Family composition
Households ‡ 2010 % of households % of families
Husband-wife family, without children 8,852 29.5% ...
Husband-wife family, with children under 18 years 7,571 25.2% ...
Single male, no children (with other family) 792 2.6% ...
Single male, with children under 18 years 1,118 3.7% ...
Single female, no children (with other family) 1,199 4.0% ...
Single female, with children under 18 years 2,268 7.5% ...
Single male living alone 3,327 11.1% n/a
Single female living alone 3,294 11.0% n/a
Other non-family households (ex.: roommates) 1,620 5.4% n/a
Total 30,041 100% n/a
Family households 21,800 72.6% 100%
Families with children under 18 years 10,957 36.5% ...
Non-family households 8,241 27.4% n/a
All households with individuals 65 years and over 7,443 24.8% 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 size2.8
Avg. household size3.1
Vacancy Rate2010
Owner-occupied properties2.1%
Renter-occupied properties7.8%
Overall vacancy rate14.4%
Housing Units2010% of total
Vacant5,042 14.4%
For rent9482.7%
Rented, but unoccupied280.1%
For sale4011.1%
Sold, but unoccupied520.1%
Seasonal use only2,6887.7%
Other vacant units9252.6%

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