Mercer County Map, Missouri

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

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

Map of Mercer County, Missouri

Map of Mercer County, Missouri

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

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Mercer County, Missouri

Mercer County is a county located in the U.S. state of Missouri. It's county seat is Princeton. As per 2020 census, the population of Mercer County is 3488 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 454 sq mi (1,176 km2). Mercer County was established on 1845.

Mercer County Facts

ContinentNorth America
CountryUnited States
StateMissouri
County SeatPrinceton
Largest City/TownPrinceton
Established1845
Total Area455 sq mi (1,178 sq km)
Land Area454 sq mi (1,176 sq km)
Water Area1 sq mi (2 sq km)
Population3,538 (Census 2020)
Population Density7.8 people per sq mi
Time ZoneCentral Time Zone (CST/CDT)
Major HighwaysU.S. Route 65, Missouri Route 136, Missouri Route 139
Major RiversWeldon River, Grand River nearby region
Neighboring CountiesPutnam County, Grundy County, Harrison County, Sullivan County, Decatur County (Iowa)
Famous ForPrairie landscapes, agriculture, hunting, and small-town rural heritage
Top AttractionsPrinceton historic district, hunting conservation areas, prairie scenic drives, and fishing lakes
Official WebsiteOfficial Website

About Mercer County

Mercer County is located in northern Missouri along the Iowa border and was established in 1845. The county seat and largest city is Princeton. The county is known for agriculture, rolling prairie landscapes, hunting, fishing, and peaceful rural communities in northern Missouri.

Cities and Towns in Mercer County, Missouri

City/TownPopulation (Census 2020)Latitude & Longitude
Princeton (county seat)1,10940.3981°N, 93.5816°W
Mercer31840.5203°N, 93.5788°W
Ravanna10840.3774°N, 93.5447°W
Powersville7440.5370°N, 93.2455°W
Modena nearby area9640.1817°N, 93.5238°W
Half Rock nearby region6140.2528°N, 93.6672°W

What are the Golf Courses in Mercer County

Golf CourseLocationLatitude & Longitude
Princeton Golf and Country ClubPrinceton40.4064°N, 93.5928°W
Mercer Recreation Golf AreaMercer40.5279°N, 93.5862°W

Major Roads and Highways in Mercer County

Major highways connect Mercer County with northern Missouri agricultural communities and southern Iowa.

  • U.S. Route 65 - important north-south transportation corridor linking Missouri and Iowa
  • Missouri Route 136 - east-west route across northern Missouri
  • Missouri Route 139 - regional connector highway serving rural communities

What are Neighboring Counties of Mercer County

  • Decatur County, Iowa (north)
  • Putnam County (east)
  • Sullivan County (south)
  • Grundy County (southwest)
  • Harrison County (west)

What Are the Top Attractions in Mercer County

The county offers prairie landscapes, hunting recreation, fishing areas, and historic rural attractions.

  • Princeton Historic District - courthouse square, local shops, and historic buildings
  • Hunting and Conservation Areas - deer hunting, turkey hunting, and wildlife recreation
  • Prairie Scenic Drives - rolling farmland and countryside photography opportunities
  • Fishing Lakes and Farm Ponds - outdoor recreation and nature viewing
  • Community Festivals and County Fair Events - seasonal celebrations and agricultural traditions
  • Historic Rural Churches and Barns - preserved pioneer and farming heritage landmarks
  • Weldon River Recreation Areas - fishing, hiking, and wildlife observation
  • Birdwatching and Wildlife Viewing Locations - prairie and wetland habitats
  • Family Parks and Recreation Facilities - sports fields and outdoor activities
  • Local Museums and Heritage Displays - exhibits on pioneer settlement and farming history

What Is the Distance from Mercer County to Nearby Cities

The following distances are measured by road (driving).

  • Princeton to Kirksville (Adair County), Missouri - 69 mi (111 km)
  • Princeton to Des Moines (Polk County), Iowa - 106 mi (171 km)
  • Princeton to St. Joseph (Buchanan County), Missouri - 122 mi (196 km)
  • Princeton to Kansas City (Jackson County), Missouri - 166 mi (267 km)
  • Princeton to Mercer (Mercer County), Missouri - 8 mi (13 km)
  • Princeton to Ravanna (Mercer County), Missouri - 3 mi (5 km)
  • Princeton to Columbia (Boone County), Missouri - 189 mi (304 km)
  • Princeton to Omaha (Douglas County), Nebraska - 177 mi (285 km)
  • Princeton to St. Louis (St. Louis City), Missouri - 328 mi (528 km)
  • Princeton to Minneapolis (Hennepin County), Minnesota - 357 mi (575 km)
  • Princeton to Chicago (Cook County), Illinois - 489 mi (787 km)
  • Princeton to Denver (Denver County), Colorado - 612 mi (985 km)
  • Princeton to Nashville (Davidson County), Tennessee - 609 mi (980 km)

FAQs about Mercer County

Where is Mercer County located?

Mercer County is located in northern Missouri along the Iowa border.

What is the population of Mercer County?

Mercer County had a population of 3,538 according to the 2020 United States Census.

What is Mercer County known for?

Mercer County is known for prairie landscapes, agriculture, hunting, and rural heritage.

What are the major highways in Mercer County?

The county is served by U.S. Route 65, Missouri Route 136, and Missouri Route 139.

Are there golf courses in Mercer County?

Yes, Mercer County includes golf facilities such as Princeton Golf and Country Club and Mercer Recreation Golf Area.

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