Hannibal, Missouri

Hannibal, Missouri
Nickname: 
America's Hometown
Location within Marion County (left) and Missouri (right)
Hannibal
Location within Missouri
Hannibal
Location within the United States
Coordinates: 39°42′35″N 91°23′38″W / 39.70972°N 91.39389°W / 39.70972; -91.39389
CountryUnited States
StateMissouri
CountiesMarion, Ralls
Platted1819
Incorporated1845
Government
  TypeCity manager and council
  MayorDarrell McCoy
  City managerLisa Peck
Area
  Total
16.47 sq mi (42.66 km2)
  Land16.00 sq mi (41.44 km2)
  Water0.47 sq mi (1.21 km2)
Elevation
646 ft (197 m)
Population
 (2020)
  Total
17,108
  Estimate 
(2023)
16,838
  Density1,052.2/sq mi (406.3/km2)
Time zoneUTC-6 (CST)
  Summer (DST)UTC-5 (CDT)
ZIP code
63401
Area code573
FIPS code29-30214
GNIS feature ID2394287
Websitewww.hannibal-mo.gov

Hannibal is a city along the Mississippi River in Marion and Ralls counties in the U.S. state of Missouri. According to the 2020 U.S. Census, the population was 17,108, making it the largest city in Marion County. The bulk of the city is in Marion County, with a tiny sliver in the south extending into Ralls County.

Nestled on the Mississippi River, commerce and traffic has long been an integral part of Hannibal's development, including by river, rail and the interstate/highway system. Today the city is intersected by Interstate 72 and U.S. Routes 24, 36, and 61. Hannibal is approximately 110 miles (180 km) northwest of St. Louis (also bordering the Mississippi), 195 miles (314 km) east-northeast of Kansas City and 194 miles (312 km) miles east of Saint Joseph (both cities on the Missouri River), and approximately 100 miles (160 km) west of Springfield, Illinois.

Hannibal is not the county seat, but it has one of two county courthouses. There is also one in Palmyra, the county seat of Marion County, which is located more centrally in the county. Hannibal is the principal city of the Hannibal, Missouri micropolitan area, which consists of both Marion and Ralls counties.