Quincy, Illinois
Quincy, Illinois | |
|---|---|
| Nickname: Gem City | |
Location of Quincy in Adams County, Illinois. | |
| Coordinates: 39°55′56″N 91°23′19″W / 39.93222°N 91.38861°W | |
| Country | United States |
| State | Illinois |
| County | Adams |
| Settled | 1819 |
| Incorporated (town) | 1834 |
| Incorporated (city) | 1870 |
| Government | |
| • Type | Mayor–council |
| • Mayor | Linda Moore (I) |
| Area | |
| 15.81 sq mi (40.94 km2) | |
| • Land | 15.77 sq mi (40.83 km2) |
| • Water | 0.04 sq mi (0.11 km2) |
| Elevation | 633 ft (193 m) |
| Population (2020) | |
| 39,463 | |
| • Density | 2,503.20/sq mi (966.50/km2) |
| • Metro | 75,546 |
| Time zone | UTC−6 (CST) |
| • Summer (DST) | UTC−5 (CDT) |
| ZIP codes | 62301, 62305, 62306 |
| Area codes | 217, 447 |
| FIPS code | 17-001-62380 |
| GNIS feature ID | 2396301 |
| Website | www |
Quincy (/ˈkwɪnsi/ KWIN-see) is a city in Adams County, Illinois, United States, and its county seat. Located on the Mississippi River, the population was 39,463 as of the 2020 census, down from 40,633 in 2010. The Quincy micropolitan area had 114,649 residents.
Known as Illinois's "Gem City", Quincy was a thriving transportation center as riverboats and rail service linked the city to many destinations west and along the river during the 19th century. It was Illinois' second-largest city, surpassing Peoria in 1870. The city has several historic districts, including the Downtown Quincy Historic District and the South Side German Historic District, which display the architecture of Quincy's many German immigrants from the late 19th century.