Mercer   County MO United States

County FIPS 29129
Largest City Princeton
State Missouri
Latitude 40.4223
Longitude -93.5686
Population 3,482
Density 7.67 people per square mile
Time Zone America/Chicago
  • All demographic data comes from the 2024 American Community Survey (5-year study).
  • Learn more about each field.
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Household Income

Median household: $62,679
Median individual: $29,750

Race

Mode: 92.4% White

Gender

 50.7% female 

Rent

  $590 / month  

Median house value: $107,452.0

Age

Median: 42.4 years old

Education

With at least college degree: 18.1%
With STEM degree: 56.4%

Marital Status

 51.3% married 

Never married: 28.0%

Labor Force Participation

 57.3% working 

Unemployed: 3.5%

Average Family Size

 3.18 people 

Commute Time

 22.6 minutes 

Health Care

 9.2% uninsured 

Poverty

 13.5%

All data comes from the SimpleMaps US Counties Database, 2026.

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