The Quincy–Hannibal, IL–MO Combined Statistical Area, as defined by the United States Census Bureau, is an area consisting of one county in Western Illinois and three counties in northeast Missouri, anchored by the cities of Quincy and Hannibal.

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Quincy, IL Quincy, Illinois Micropolitan Statistical Area
Micropolitan Statistical Area
Downtown Quincy
Map of Quincy–Hannibal, IL–MO CSA   City of Quincy, IL   Quincy, IL µSA   City of Hannibal, MO   Hannibal, MO µSA
Country	United States
State	Illinois Missouri
Principal city	Quincy, Illinois
Largest city	Hannibal, Missouri
Population  (2020)
• Total	114,649
Time zone	UTC−6 (CST)
• Summer (DST)	UTC−5 (CDT)

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As of the 2020 census, the μSA had a population of 114,649.^[1]

In Illinois

• Adams

In Missouri

• Lewis
• Marion
• Ralls

All populations are based on the 2012 census.

As of the census^[2] of 2000, there were 78,771 people, 30,816 households, and 20,705 families residing within the μSA. The racial makeup of the μSA was 95.21% White, 3.00% African American, 0.16% Native American, 0.37% Asian, 0.01% Pacific Islander, 0.33% from other races, and 0.92% from two or more races. Hispanic or Latino of any race were 0.82% of the population.

The median income for a household in the μSA was $32,718, and the median income for a family was $39,937. Males had a median income of $29,475 versus $20,381 for females. The per capita income for the μSA was $16,320.

In 2015 Quincy, Illinois was named as a finalist for the All-American City.^[3]

Quincy, IL is home to institutions of higher education including John Wood Community College,^[4] and Quincy University.^[5]

Quincy Transit Lines serves the Quincy area. The Carl Sandburg and Illinois Zephyr Amtrak trains serve Quincy station.

• Illinois statistical areas
• Hannibal, Missouri micropolitan area
• Greater St. Louis