Census 2010: Washington › Whatcom County

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

Whatcom County

Square miles: 2,503.5 Population per sq. mile: 95.5

  • 2010 population: 201,140
  • 2000 population: 166,814
  • Total change: 34,326 (20.6%)

See all Washington counties

2010 population by race/ethnicity

Diversity Index: 33.1%
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: 36.6 years old

Whatcom County population

Race/ethnicity2010 population2010 percentage2000 population2000 percentage2000-2010 change
American Indian/Alaska Native5,6832.8%4,7092.8%20.7%
Native Hawaiian/Pacific Islander4920.2%2350.1%109.4%
Other race6,5773.3%4,1592.5%58.1%
Two or more races7,5533.8%4,4392.7%70.2%
*Hispanic origin15,7567.8%8,6875.2%81.4%

*Residents of Hispanic origin can be of any race.

Ages 0-17

Population: 42,205 (21.0%)

Diversity Index: 53.8%

Ages 18+

Population: 158,935 (79.0%)

Diversity Index: 32.1%

Race/ethnicityAges 0-17% of 0-17 totalAges 18+% of 18+ total
American Indian/Alaska Native1,6904.0%3,9932.5%
Native Hawaiian/Pacific Islander1240.3%3680.2%
Other race2,3355.5%4,2422.7%
Two or more races3,2297.7%4,3242.7%
*Hispanic origin6,11114.5%9,6456.1%

*Residents of Hispanic origin can be of any race.

Population99,635 (49.5%)
Median age35.4
Population101,505 (50.5%)
Median age37.8
Age breakdown by gender
AgePopulation% of totalMale% of male totalFemale% of female total
Under 1022,60211.2%11,66911.7%10,93310.8%
10 to 19 years27,96413.9%14,00414.1%13,96013.8%
20 to 29 years34,29617.1%17,47317.5%16,82316.6%
30 to 39 years23,82611.8%12,03812.1%11,78811.6%
40 to 49 years25,85112.9%12,81712.9%13,03412.8%
50 to 59 years27,62513.7%13,36513.4%14,26014.0%
60 to 69 years21,09610.5%10,42010.5%10,67610.5%
70 to 79 years10,4715.2%5,0065.0%5,4655.4%
80 and older7,4093.7%2,8432.9%4,5664.5%

*Residents of Hispanic origin can be of any race.

Household types
Families 2010
Avg. size 3.0
Households 48,862 (60.8%)
Non-families 2010
Avg. size 2.4
Households 31,508 (39.2%)
Family composition
Households ‡ 2010 % of households % of families
Husband-wife family, without children 23,811 29.6% ...
Husband-wife family, with children under 18 years 14,766 18.4% ...
Single male, no children (with other family) 1,490 1.9% ...
Single male, with children under 18 years 1,702 2.1% ...
Single female, no children (with other family) 2,885 3.6% ...
Single female, with children under 18 years 4,208 5.2% ...
Single male living alone 10,293 12.8% n/a
Single female living alone 12,064 15.0% n/a
Other non-family households (ex.: roommates) 9,151 11.4% n/a
Total 80,370 100% n/a
Family households 48,862 60.8% 100%
Families with children under 18 years 20,676 25.7% ...
Non-family households 31,508 39.2% n/a
All households with individuals 65 years and over 19,079 23.7% 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 size2.5
Avg. household size2.3
Vacancy Rate2010
Owner-occupied properties2.2%
Renter-occupied properties5.1%
Overall vacancy rate11.4%
Housing Units2010% of total
Vacant10,295 11.4%
For rent1,6561.8%
Rented, but unoccupied1740.2%
For sale1,1131.2%
Sold, but unoccupied2510.3%
Seasonal use only5,6906.3%
Other vacant units1,4111.6%

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