Marion County Map, Missouri

Written and Fact-checked by | Last Updated: November 01, 2025, 14:20 ET

Map of McDonald County - McDonald County is a county located in the U.S. state of Missouri. McDonald County Map showing cities, highways, important places and water bodies. Get Where is McDonald County located in the map, major cities in McDonald county, population, areas, and places of interest.

Map of Marion County, Missouri

Map of Marion County, Missouri

About McDonald County Map, Missouri: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.

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Marion County, Missouri

Marion County is a county located in the U.S. state of Missouri. It's county seat is Palmyra. As per 2020 census, the population of Marion County is 28518 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 438 sq mi (1,134 km2). Marion County was established on 1826.

Marion County Facts

ContinentNorth America
CountryUnited States
StateMissouri
County SeatPalmyra
Largest City/TownHannibal
Established1826
Total Area444 sq mi (1,150 sq km)
Land Area437 sq mi (1,132 sq km)
Water Area7 sq mi (18 sq km)
Population28,525 (Census 2020)
Population Density65.3 people per sq mi
Time ZoneCentral Time Zone (CST/CDT)
Major HighwaysU.S. Route 24, U.S. Route 36, U.S. Route 61, Interstate 72 nearby region
Major RiversMississippi River
Neighboring CountiesLewis County, Ralls County, Shelby County, Adams County (Illinois), Pike County (Illinois)
Famous ForMark Twain heritage, Hannibal riverfront, historic sites, and Mississippi River tourism
Top AttractionsMark Twain Boyhood Home and Museum, Hannibal riverfront, cave tours, and historic downtown districts
Official WebsiteOfficial Website

About Marion County

Marion County is located in northeastern Missouri along the Mississippi River and was established in 1826. The county seat is Palmyra, while Hannibal is the largest city. The county is internationally known as the boyhood home of Mark Twain and for its scenic riverfront tourism, historic architecture, and cultural attractions.

Cities and Towns in Marion County, Missouri

City/TownPopulation (Census 2020)Latitude & Longitude
Hannibal17,10839.7084°N, 91.3585°W
Palmyra (county seat)3,59539.7945°N, 91.5232°W
Monroe City nearby region2,53139.6534°N, 91.7349°W
Philadelphia19639.8695°N, 91.7241°W
Taylor58639.9325°N, 91.4091°W
Maywood nearby area26739.9397°N, 91.6027°W

What are the Golf Courses in Marion County

Golf CourseLocationLatitude & Longitude
Norwoods Golf ClubHannibal39.7194°N, 91.3691°W
Hannibal Country ClubHannibal39.6978°N, 91.3455°W
Palmyra Golf CoursePalmyra39.8041°N, 91.5340°W

Major Roads and Highways in Marion County

Major highways connect Marion County with the Mississippi River region, Illinois, and northern Missouri communities.

  • U.S. Route 24 - major east-west transportation route through northeastern Missouri
  • U.S. Route 36 - important expressway linking Missouri and Illinois
  • U.S. Route 61 - north-south corridor along the Mississippi River
  • Interstate 72 nearby region - regional interstate access to Illinois and the Midwest

What are Neighboring Counties of Marion County

  • Lewis County (northwest)
  • Shelby County (west)
  • Ralls County (south)
  • Adams County, Illinois (east)
  • Pike County, Illinois (southeast)

What Are the Top Attractions in Marion County

The county offers literary history, Mississippi River attractions, caves, museums, and outdoor recreation.

  • Mark Twain Boyhood Home and Museum - exhibits dedicated to Samuel Clemens and literary history
  • Historic Downtown Hannibal - shops, restaurants, murals, and riverfront attractions
  • Mark Twain Cave Complex - guided cave tours and geological formations
  • Mississippi Riverfront Parks - scenic views, riverboat cruises, and recreation
  • Rockcliffe Mansion - preserved Victorian mansion and historic tours
  • Lovers Leap Overlook - panoramic Mississippi River photography location
  • Hannibal History Museum - exhibits on river trade and regional heritage
  • Palmyra Courthouse Square - historic architecture and community events
  • Community Festivals and Tom Sawyer Celebrations - cultural events and family entertainment
  • Fishing, Boating, and Outdoor Recreation Areas - Mississippi River activities and nature exploration

What Is the Distance from Marion County to Nearby Cities

The following distances are measured by road (driving).

  • Hannibal to Quincy (Adams County), Illinois - 18 mi (29 km)
  • Hannibal to Columbia (Boone County), Missouri - 116 mi (187 km)
  • Hannibal to Kirksville (Adair County), Missouri - 86 mi (138 km)
  • Hannibal to St. Louis (St. Louis City), Missouri - 115 mi (185 km)
  • Hannibal to Palmyra (Marion County), Missouri - 10 mi (16 km)
  • Hannibal to Taylor (Marion County), Missouri - 15 mi (24 km)
  • Hannibal to Springfield (Greene County), Illinois - 100 mi (161 km)
  • Hannibal to Kansas City (Jackson County), Missouri - 238 mi (383 km)
  • Hannibal to Chicago (Cook County), Illinois - 284 mi (457 km)
  • Hannibal to Des Moines (Polk County), Iowa - 220 mi (354 km)
  • Hannibal to Minneapolis (Hennepin County), Minnesota - 431 mi (694 km)
  • Hannibal to Nashville (Davidson County), Tennessee - 399 mi (642 km)
  • Hannibal to Denver (Denver County), Colorado - 738 mi (1,188 km)

FAQs about Marion County

Where is Marion County located?

Marion County is located in northeastern Missouri along the Mississippi River.

What is the population of Marion County?

Marion County had a population of 28,525 according to the 2020 United States Census.

What is Marion County known for?

Marion County is known for Mark Twain heritage, Hannibal tourism, Mississippi River attractions, and historic sites.

What are the major highways in Marion County?

The county is served by U.S. Route 24, U.S. Route 36, U.S. Route 61, and nearby Interstate 72 access.

Are there golf courses in Marion County?

Yes, Marion County includes golf facilities such as Norwoods Golf Club, Hannibal Country Club, and Palmyra Golf Course.

References

  1. QuickFacts - U.S. Census Bureau
  2. United States Census Bureau
  3. United States Geological Survey (USGS)
  4. National Geodetic Survey
  5. Official Website