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Montgomery County, Tennessee facts for kids

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Montgomery County
County of Montgomery
Montgomery County Courthouse in Clarksville
Montgomery County Courthouse in Clarksville
Official seal of Montgomery County
Official logo of Montgomery County
Map of Tennessee highlighting Montgomery County
Location within the U.S. state of Tennessee
Map of the United States highlighting Tennessee
Tennessee's location within the U.S.
Country  United States
State  Tennessee
Founded 9 April 1796
Named for John Montgomery
Seat Clarksville
Largest city Clarksville
 • Total 544 sq mi (1,410 km2)
 • Land 539 sq mi (1,400 km2)
 • Water 4.7 sq mi (12 km2)  0.9%%
 • Total 220,069 Increase
 • Density 388/sq mi (150/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)

Montgomery County is a county in the U.S. state of Tennessee. As of the 2020 United States census, the population was 220,069. The county seat (and only incorporated municipality) is Clarksville. The county was created in 1796. Montgomery County is included in the Clarksville, TN–KY Metropolitan Statistical Area.


The county was named for John Montgomery, a soldier in the American Revolutionary War and an early settler who founded the city of Clarksville. It was organized in 1796 when Tennessee County, North Carolina, was split, and Tennessee became a state. (The federal government had reached an agreement with certain of the original colonies, such as North Carolina, to give up their western claims across the Appalachians.) The same year, much of the eastern portion of the county was combined with land taken from Sumner County to form [[Robertson County, Tennessee. Later acts of the Tennessee General Assembly further reduced the county by 1871 to its current size and boundaries.

Montgomery County was the site of several early saltpeter mines. Saltpeter is the main ingredient of gunpowder and was obtained by leaching the earth from several local caves. Bellamy Cave, located near Stringtown, still contains the remains of two dozen saltpeter leaching vats. It appeared to have a large operation. Cooper Creek Cave also shows evidence of extensive mining and contains the remains of "many saltpeter hoppers". Both were probably mined during the War of 1812. Dunbar Cave is reported to have been mined for saltpeter during the Mexican War of 1848, but commercial development has destroyed any evidence of this. Little mining is likely to have happened here during the Civil War, since the Union Army captured and occupied this part of Tennessee in early 1862.


According to the U.S. Census Bureau, the county has a total area of 544 square miles (1,410 km2), of which 539 square miles (1,400 km2) is land and 4.7 square miles (12 km2) (0.9%) is water.

Dunbar Cave

Montgomery County lies in a region of well-developed karst topography. A large cave system is named Dunbar Cave. Dunbar Cave is the centerpiece of Dunbar Cave State Park, which encompasses approximately 110 acres and is one of the most visited units in the Tennessee State Park System.

Dunbar Cave was extensively used by prehistoric Indians, who inhabited this area for thousands of years before European encounter. Remains of their cane torches have been found in the cave, and archaeologists have excavated numerous artifacts inside the entrance. During a research trip into the cave on January 15, 2005, Park Ranger Amy Wallace, History professor Joe Douglas, local historian Billyfrank Morrison, and Geologist Larry E. Matthews, discovered Indian glyphs on the walls of the cave. Subsequent investigations by archaeologists from the University of Tennessee at Knoxville confirmed that these drawings were left by people of the Mississippian culture, which was active about 1000-1300 CE. These Indian glyphs were featured for a few years on the tour of the cave.

In 2009 Tennessee closed Dunbar Cave to the public because White Nose Syndrome was diagnosed in a bat and they did not want the disease to spread. The above ground portion of the Park is still open to the public.

Adjacent counties

State protected areas


Historical population
Census Pop.
1800 2,899
1810 8,021 176.7%
1820 12,219 52.3%
1830 14,349 17.4%
1840 16,927 18.0%
1850 21,045 24.3%
1860 20,895 −0.7%
1870 24,747 18.4%
1880 28,481 15.1%
1890 29,697 4.3%
1900 36,017 21.3%
1910 33,672 −6.5%
1920 32,265 −4.2%
1930 30,882 −4.3%
1940 33,346 8.0%
1950 44,186 32.5%
1960 55,645 25.9%
1970 62,721 12.7%
1980 83,342 32.9%
1990 100,498 20.6%
2000 134,768 34.1%
2010 172,331 27.9%
2020 220,069 27.7%
US Decennial Census
1790-1960 1900-1990
1990-2000 2010-2014
USA Montgomery County, Tennessee.csv age pyramid
Age pyramid Montgomery County

2020 census

Montgomery County racial composition
Race Number Percentage
White (non-Hispanic) 131,294 59.66%
Black or African American (non-Hispanic) 43,349 19.7%
Native American 757 0.34%
Asian 5,039 2.29%
Pacific Islander 936 0.43%
Other/Mixed 15,760 7.16%
Hispanic or Latino 22,934 10.42%

As of the 2020 United States census, there were 220,069 people, 76,974 households, and 53,563 families residing in the county.




Unincorporated communities

See also

Kids robot.svg In Spanish: Condado de Montgomery (Tennessee) para niños

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