Arlington Flag

Arlington

County Seat:
No
Area (mi²):
9.97
State:
Washington

Arlington is a city located in Snohomish County, Washington. Arlington has a 2025 population of 21,982. Arlington is currently growing at a rate of 1.8% annually and its population has increased by 9.68% since the most recent census, which recorded a population of 20,042 in 2020.

The average household income in Arlington is $112,741 with a poverty rate of 10.95%.The median age in Arlington is 37.1 years: 36.6 years for males, and 38.5 years for females.

22K
Total Population
2,205
Density (mi²)
388 1.8%
Growth

Arlington Population

Arlington Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Arlington includes 75.64% White, 6.6% other race, 5.46% Asian, and smaller percentages for Black or African American, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White15,58275.64%
Two or more races2,08910.14%
Other race1,3606.6%
Asian1,1255.46%
Black or African American2741.33%
Native American1120.54%
Native Hawaiian or Pacific Islander570.28%

Arlington Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Arlington's average per capita income is $56,598. Household income levels show a median of $84,919. The poverty rate stands at 10.95%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$134,357-
Families$107,143$133,043
Households$84,919$112,741
Non Families$52,832$65,575

$56,598

Average Income

$84,919

Median Household Income

10.95%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)