Dayton Flag

Dayton

County:
Columbia County
County Seat:
Yes
Area (mi²):
1.442
State:
Washington

Dayton is a city located in Columbia County, Washington. Dayton has a 2025 population of 2,476 . It is also the county seat of Columbia County . Dayton is currently growing at a rate of 0.2% annually and its population has increased by 1.14% since the most recent census, which recorded a population of 2,448 in 2020.

The average household income in Dayton is $91,002 with a poverty rate of 11.76%. The median age in Dayton is 51.3 years: 50.2 years for males, and 52.3 years for females. For every 100 females there are 108.4 males.

2.5K
Total Population
1,717
Density (mi²)
5 0.2%
Growth

Dayton Population

Dayton Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Dayton includes 76.25% White, 5.38% other race, and smaller percentages for Black or African American, Native American, Asian and multiracial populations.

Population by Race

White (76.25%)

Two or more races (17.77%)

Other race (5.38%)

Black or African American (0.37%)

Native American (0.19%)

Asian (0.04%)

Race
Population
Percentage (of total)
White2,05576.25%
Two or more races47917.77%
Other race1455.38%
Black or African American100.37%
Native American50.19%
Asian10.04%

Dayton Marital Status

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

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Dayton's average per capita income is $57,089. Household income levels show a median of $71,687. The poverty rate stands at 11.76%.

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$104,653-
Families$94,792$115,324
Households$71,687$91,002
Non Families$46,288$46,460

$57,089

Average Income

$71,687

Median Household Income

11.76%

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)