Missouri Counties
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Missouri Counties

Missouri has one hundred and fourteen counties and one independent city. St. Louis City is separate from St. Louis County and is referred to as a "city not within a county." Following the Louisiana Purchase and the admittance of Louisiana into the United States in 1812, five counties were formed out of the Missouri Territory at the first general assembly. Most subsequent counties were apportioned from these five original counties.

Grundy County, Missouri

Grundy County Education, Geography, and HistoryGrundy County, Missouri Courthouse

Grundy County is a county located in the state of Missouri. Based on the 2010 census, the population was 10,261. Its county seat is Trenton. The county was organized January 2, 1841, from part of Livingston County, Missouri and named after US Attorney General Felix Grundy

Etymology - Origin of Grundy County Name

Named for Felix Grundy, Tennessee senator and United States attorney general.


County QuickFacts: CensusBureau Quick Facts

History of Grundy County

In the year 1839, the legislature passed a bill defining the limits of Grundy County. The name given it was in honor of the distinguished statesman and United States Senator, from Tennessee, the Honorable Felix Grundy. The bill passed November 12, 1839. It was not organized into a county proper until January 2, 1841. (Gannett, p. 145; RECORD OF CHARITON COUNTY, p. 15; Eaton, p. 170; HIST. GRUNDY, pp. 174-5)

Source: Adams, Orvyl Guy. "Place Names In The North Central Counties Of Missouri." M.A. thesis., University of Missouri-Columbia, 1928.


As reported by the Census Bureau, the county has a total area of 438 square miles (1,130 km2), of which 435 square miles (1,130 km2) is land and 2.8 square miles (7.3 km2) (0.6%) is water.

Neighboring Counties

Bordering counties are as follows:

  • Mercer County (north)
  • Sullivan County (east)
  • Linn County (southeast)
  • Livingston County (south)
  • Daviess County (southwest)
  • Harrison County (northwest)


Public schools

Grundy County R-V School District - Galt
Laredo R-I School District - Laredo
Pleasant View R-VI School District - Trenton
Spickard R-II School District - Spickard
Trenton R-IX School District - Trenton

Private schools

Pleasant Hill School - Jamesport (02-09) - Amish

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