Quincy Flag

Quincy

County:
Grant County
County Seat:
No
Area (mi²):
6.687
State:
Washington

Quincy is a city located in Grant County, Washington. Quincy has a 2026 population of 8,624. Quincy is currently growing at a rate of 1.95% annually and its population has increased by 12.97% since the most recent census, which recorded a population of 7,634 in 2020.

The median household income in Quincy is $87,902 with a poverty rate of 6.2%. The median age in Quincy is 32.6 years: 33.3 years for males, and 31.7 years for females. For every 100 females there are 99.8 males.

8.6K
Total Population
1,290
Density (mi²)
165 1.95%
Growth

Quincy Population

Quincy Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20268,6241651.95%
20258,4591651.99%
20248,2941071.31%
20238,1871732.16%
20228,0141762.25%
20217,8382933.88%
20207,634-372-4.65%
20198,0062713.5%
20187,7352102.79%
20177,525961.29%
20167,429460.62%
20157,383500.68%
20147,3331351.88%
20137,1981762.51%
20127,022941.36%
20116,9281201.76%
20106,808580.86%
20005,0441,30634.94%
19903,7382136.04%
19803,5252888.9%
19703,237-32-0.98%
19603,26900%

Median Age

Overall: 32.6 years
Female: 31.7 years
Male: 33.3 years

Quincy Adults

There are 5,639 adults, (1,072 of whom are seniors) in Quincy.

Sex Ratio

Female: 4,004 (50.1%)
Male: 3,994 (49.9%)

Demographics

The racial composition of Quincy includes 43.12% other race, 24.84% White, and smaller percentages for Native American, Asian, Black or African American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
Other race3,44943.12%
Two or more races2,21727.72%
White1,98724.84%
Native American2092.61%
Asian931.16%
Black or African American430.54%
Race
Population ↓
Percentage (of total)
Other race3,44943.12%
Two or more races2,02925.37%
White4245.3%
Native American1932.41%
Race
Population ↓
Percentage (of total)
White1,56319.54%
Two or more races1882.35%
Asian931.16%
Black or African American430.54%
Native American160.2%

Quincy Marital Status

Economics and Income Statistics

Quincy 's average per capita income is $47,089. Household income levels show a median of $87,902. The poverty rate stands at 6.2%.

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$93,102-
Families$91,439$96,592
Households$87,902$92,919
Non Families$50,407$62,032

$47,089

Average Income

$87,902

Median Household Income

6.2%

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)