Quincy, Illinois — interactive Google street map, satellite and terrain views, Street View, live National Weather Service conditions and 7-day forecasts, real-time local and world news, and an editorial description of Quincy, Adams County.
| City | Quincy |
| State | Illinois (IL) |
| County | Adams |
| Country | United States of America |
| Timezone | Central Time (America/Chicago) |
| Latitude | 39.935602 |
| Longitude | -91.409873 |
| Population | 39,109 |
| Density | 950.3 /km² |
| Incorporated | N/A |
| ZIP Code(s) | 62301, 62305, 62306 |
| Area Code | 217 |
| County Seat | Quincy |
| School District | Quincy School District 172 |
Quincy is a locality in Adams County, Illinois, United States. It has a population of 39,109. The population density is 950.3 people per km². Quincy is located at 39.9356°N, 91.4099°W. It observes the Central Time (America/Chicago) timezone. ZIP code: 62305.
Quincy rises from the rolling landscape of western Illinois, a place where the sky feels vast and the Mississippi River, a constant, powerful presence, shapes the very air. It lies 83.2 miles north-north-west of Wentzville, MO (from Wentzville, MO: bearing 339°T), and is situated 8.7 miles south-south-east of La Grange. The terrain here is a study in gentle slopes and broad horizons, the rich, dark soil of the Mississippi Valley giving way to clusters of sturdy trees, their branches often laden with the scent of damp earth after a spring rain. Even in the summer heat, a certain coolness seems to emanate from the river, a subtle reminder of its immense body of water, and the way it carves its path through the land. The houses, many of them with wide porches and mature shade trees, seem to settle comfortably into this landscape, their windows reflecting the wide, ever-changing sky. Quincy's story is deeply intertwined with the Mississippi, a vital artery for commerce and connection since its founding. This was a hub for steamboats in the 19th century, a place where goods and people flowed in both directions, shaping its economy and its character. The legacy of that era can still be felt in the sturdy brick architecture of its older districts, a testament to a time of robust trade and ambitious growth. Today, while industry has diversified, agriculture remains a cornerstone, the fertile land supporting a robust farming community that feeds into the town’s markets and processing plants. The presence of the river also brings with it a distinct cultural flavor, a blend of Midwestern pragmatism and a certain openness that comes from being a gateway to the wider world.
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This page provides an interactive Google map of Quincy, Illinois with street, satellite and terrain views and integrated Street View imagery. Live weather conditions are sourced directly from the National Weather Service, with current observations and a 7-day forecast also powered by Open-Meteo. Real-time local news and world news feeds keep the page current, while a Wikipedia summary or an editorially written description provides background on Quincy and Adams County.
Detailed location data for Quincy includes the ZIP code (62301), telephone area code (217), county seat of Adams County (Quincy), and school district assignment (Quincy School District 172). These are among the most commonly searched location details for any US city or town.
Location data is drawn from the USGS Geographic Names Information System (GNIS) and cross-verified against 2020 US Census records by coordinate proximity — ensuring the correct Quincy is identified even where the name is shared across multiple counties or states. Population figures are sourced from the 2020 US Census.
| Page generated | June 2026 |
| Location data | SimpleMaps US Cities Database; coordinates matched to USGS GNIS definitive data |
| Wikipedia validation | Article content matched to USGS GNIS coordinates via Wikipedia geosearch API. Location verified by proximity — not name matching alone. |