Quincy
cityQuincy, Illinois, nestled on the Mississippi River in Adams County, serves as the county seat and a vital economic and cultural hub for West-Central Illinois. With a population of approximately 39,109 in 2024, the city blends its rich history with modern development. Known as the "Gem City," Quincy has a diverse economy rooted in agriculture and manufacturing, and a growing presence in healthcare and technology. Quincy's economy is supported by key industries such as healthcare, manufacturing, and agriculture. Major institutions like Blessing Hospital, Quincy University, and John Wood Community College contribute significantly to the local economy and provide employment opportunities. The city's strategic location on the Mississippi River has historically facilitated trade and transportation, and continues to play a role in its economic activities. Quincy distinguishes itself through its significant historical role, particularly during the 19th century. It provided refuge for Mormons in the winter of 1838-39 and was a stop on the Underground Railroad. The city hosted one of the Lincoln-Douglas debates in 1858, further cementing its place in American history. Today, Quincy maintains a strong sense of community, celebrates its German heritage, and offers a high quality of life with its extensive park system and performing arts organizations.
Quincy, Illinois
- Classification
- City
- Country
- United States
- County
- Adams
- Region
- West-Central Illinois
- Elevation
- 633 ft
- Total Area
- 15.81 sq mi
- Land Area
- 15.77 sq mi
- Water Area
- 0.04 sq mi
- Latitude
- 39.93111
- Longitude
- -91.37222
- Climate
- Quincy experiences a humid continental climate with four distinct seasons. Summers are warm and humid, while winters are cold with occasional snowfall.
- Notable Features
- Mississippi River · Quincy Bay · Bluffs
- Neighboring Areas
- West Quincy, Missouri · North Quincy · Hickory Grove · Marblehead
- Population (2020)
- 39,463
- Est. Population (2024)
- 39,109
- Median Age
- 39.7
- Median Income
- $56,480
- Poverty Rate
- 16.7%
- Family Households
- 51.3%
- Owner-Occupied
- 63.6%
- Racial & Ethnic Composition
- The racial makeup of Quincy is approximately 86% White, 4.2% Black or African American, 6% Two or More Races, 2.5% Hispanic, and 1% Asian.
- Government Type
- Mayor-Council
- Governing Body
- City Council
- School District
- Quincy Public School District 172
- Municipal Services
- Police · Fire · Public Works · Parks & Recreation · Utilities · Engineering · Central Services



















- Unemployment Rate
- 4.6%
- Economic Profile
- Diverse · Manufacturing · Healthcare · Agriculture
- Employment Sectors
- Health Care & Social Assistance · Manufacturing · Retail Trade
- Major Employers
- Blessing Hospital · Knapheide Manufacturing Company · Quincy University · John Wood Community College
- Schools
- 10
- Students
- 6,100
- School Districts
- Quincy Public School District 172
- Colleges & Universities
- Quincy University · John Wood Community College · Blessing Rieman College of Nursing and Health Sciences
- Transportation
- Interstate access · Rail service · Barge Dock
- Utilities
- Municipal water · Sewer · Storm water
- Major Facilities
- Blessing Hospital · Quincy Regional Airport
- Outdoor Access
- Yes
- Major Recreation Areas
- Quincy Park District Parks · Bill Klingner Trail · Moorman Park · Quinsippi Island Park
- Parks & Trails
- Quincy Park District with 28 parks · Bill Klingner Trail System
- Founded
- 1819
- Incorporated
- 1840
- Named After
- John Quincy Adams
- Historical Significance
- Quincy played a significant role in 19th-century Illinois history, particularly during the slavery debates and westward expansion. It was once the second-largest city in Illinois and a major transportation hub.
- Key Events
- Settled by John Wood in 1819 · Became Adams County seat in 1825 · Refuge for Mormons in 1838-39 · Stop on the Underground Railroad · Site of a Lincoln-Douglas debate in 1858
