Marion County Map, Missouri
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Marion County, Missouri
Marion County hugs the Mississippi River in northeast Missouri. The state of Illinois is just nextdoor to the east. Mark Twain’s boyhood home is right here in Hannibal. This is the county’s claim to fame.
Limestone bluffs and rolling hills define the landscape. The mighty river still shapes life, with barges chugging past and fishermen trying their luck. Farming dominates the rural areas, while small factories hum in the towns.
Lots of history buffs flock here to explore Twain’s haunts and antebellum mansions. Folks are friendly, with a mix of Midwestern charm and river town grit.
| Category | Details |
|---|---|
| County Name | Marion County |
| County Seat | Palmyra |
| Population | Approximately 28,000 |
| Cities, Towns, and Communities | Hannibal, Palmyra, Monroe City, Philadelphia, West Quincy, Warren |
| Interstates and Highways | I-72, US 24, US 61, MO 168 |
| FIPS Code | 29-127 |
| Total Area (Land and Water) | 444 square miles (Land: 437 sq mi, Water: 7 sq mi) |
| Adjacent Counties (and Direction) | Lewis County (North), Adams County, Illinois (Northeast), Pike County, Illinois (Southeast), Ralls County (South), Monroe County (Southwest), Shelby County (West) |
| Time Zone | Central Time Zone (CT) |
| State | Missouri |
| Coordinates | 39.8380° N, 91.5502° W |
| Etymology | Named after Francis Marion, a Revolutionary War hero |
| Major Landmarks | Mark Twain Boyhood Home & Museum, Rockcliffe Mansion, Mark Twain Cave Complex |
| Website | Marion County Website |
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