City in Grant County, Washington · 6.7 sq mi · 1,297 people per sq mi
8,673 people live in Quincy. The typical household earns $87,902, and the median resident is 32.6 years old.
2026 projection
From 7,543 in 2020
Poverty rate 6.2%
Men 33.3 · Women 31.7
1910–2026
8,673
2026 projection
15% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1910–2026
8,673
2026 projection
15% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 8,673 | +163 | 1.92% |
|---|---|---|---|
| 2025 | 8,510 | +221 | 2.67% |
| 2024 | 8,289 | +117 | 1.43% |
| 2023 | 8,172 | +168 | 2.10% |
| 2022 | 8,004 | +168 | 2.14% |
| 2021 | 7,836 | +293 | 3.88% |
| 2020 | 7,543 | +238 | 3.26% |
| 2019 | 7,305 | +195 | 2.74% |
| 2018 | 7,110 | +134 | 1.92% |
| 2017 | 6,976 | +21 | 0.30% |
Showing 10 of 27 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Quincy is growing faster than Grant County, Washington, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 80 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 16 residents
53% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 53% | 52% | 53% |
| Never married | 32% | 35% | 29% |
| Divorced | 6% | 10% | 3% |
| Widowed | 5% | 1% | 9% |
| Separated | 4% | 2% | 6% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources