Quincy Population 2026
Quincy has a population of 40,780, making it the #1091 biggest city in 🇺🇸 United States, located in Illinois. It is about 216× smaller than New York City, the country's biggest city.
Population (city proper)
40,780
Rank in United States
#1091
Coordinates
39.94°N, 91.41°W
~173 m elevation · America/Chicago
Distance to capital (Washington)
1,239 km
769 miles, straight line
Other big cities in Illinois
| City | Population | Rank in United States |
|---|---|---|
| Chicago | 2,664,452 | #3 |
| Aurora | 200,661 | #125 |
| Rockford | 148,278 | #184 |
| Joliet | 147,861 | #186 |
| Naperville | 147,100 | #190 |
| Peoria | 115,070 | #259 |
| Springfield | 114,394 | #262 |
| North Peoria | 113,004 | #266 |
Cities near Quincy
- Hannibal17,839 people · ~26 km away
- Macomb18,547 people · ~86 km away
- Burlington25,410 people · ~100 km away
- Jacksonville19,103 people · ~103 km away
- Kirksville17,520 people · ~104 km away
- Wentzville35,603 people · ~134 km away
FAQ
What is the population of Quincy?
Quincy has a population of 40,780 (city proper, latest official figure via GeoNames), making it the #1091 biggest city in United States.
What state is Quincy in?
Quincy is located in Illinois, United States.
Is Quincy the capital of United States?
No, the capital of United States is Washington D.C., about 1,239 km away.
Sources & notes
Population refers to the city proper (municipal boundaries), not the metropolitan area. Source: GeoNames (CC BY 4.0), retrieved 2026-07-07. Country data: UN World Population Prospects 2024.
← All biggest cities in United States · United States population by year