Franklin County, Ohio

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Not to be confused with Franklin, Ohio.
Franklin County, Ohio
Franklin County Government Center
Seal of Franklin County, Ohio
Map of Ohio highlighting Franklin County
Location in the state of Ohio
Map of the United States highlighting Ohio
Ohio's location in the U.S.
Founded April 30, 1803[1]
Named for Benjamin Franklin
Seat Columbus
Largest city Columbus
 • Total 543.51 sq mi (1,408 km2)
 • Land 532.19 sq mi (1,378 km2)
 • Water 11.32 sq mi (29 km2), 2.08%
Population (Est.)
 • (2013) 1,212,263
 • Density 2,186/sq mi (844/km²)
Congressional districts 3rd, 15th
Time zone Eastern: UTC-5/-4

Franklin County is a county in the U.S. state of Ohio. According to the 2013 census estimates, it has a population of 1,212,263 making it the second-most populous county in Ohio and the 34th most populous county in the United States.[2] Its county seat is Columbus,[3] the state capital and most populous city in Ohio. The county was established on April 30, 1803, less than two months after Ohio became a state, and was named after Benjamin Franklin.[4] Franklin County originally extended all the way north to Lake Erie before Ohio subdivided further into more counties.

Franklin County is included in the Columbus, OH Metropolitan Statistical Area.

Franklin County, particularly Columbus, has been a centerpiece for presidential and congressional politics, most notably the 2000 presidential election, the 2004 presidential election, and the 2006 midterm elections. Franklin County is home to one of the largest universities in the United States, The Ohio State University, which as of fall 2011 has an enrollment of 56,867 students on its main Columbus campus.[5]


On March 30, 1803, the Ohio government authorized the creation of Franklin County. The county originally was part of Ross County. Residents named the county in honor of Benjamin Franklin.[6] In 1816, Franklin County’s Columbus became Ohio’s state capital. Surveyors laid out the city in 1812, and officials incorporated it in 1816. Columbus was not Ohio’s original capital, but the state legislature chose to move the state government there after its location for a short time at Chillicothe and at Zanesville. Columbus was chosen as the site for the new capital because of its central location within the state and access by way of major transportation routes (primarily rivers) at that time. The legislature chose it as Ohio’s capital over a number of other competitors, including Franklinton, Dublin, Worthington, and Delaware.

Before the state legislature’s decision in 1812, Columbus did not exist. The city was designed from the first as the state’s capital, preparing itself for its role in Ohio’s political, economic, and social life. In the years between first ground-breaking and the actual movement of the capital in 1816, Columbus and Franklin County grew significantly. By 1813, workers had built a penitentiary, and by the following year, residents had established the first church, school, and newspaper in Columbus. Workers completed the Ohio Statehouse in 1814. Columbus and Franklin County grew quickly in population, with the city having 700 people by 1815. Columbus officially became the county seat in 1824. By 1834, the population of Columbus was 4,000 people, officially elevating it to "city" status.


According to the 2010 census, the county has a total area of 543.51 square miles (1,407.7 km2), of which 532.19 square miles (1,378.4 km2) (or 97.92%) is land and 11.32 square miles (29.3 km2) (or 2.08%) is water.[7] The county is located in the Till Plains and the Appalachian Plateau land regions.

The county is drained by the Olentangy River and the Scioto River. Major creeks in the county include Big Darby Creek, Big Walnut Creek, and Alum Creek. There are two large reservoirs in the county, Hoover Reservoir and Griggs Reservoir.[8]

Adjacent counties[edit]

Major highways[edit]


Historical population
Census Pop.
1810 3,486
1820 10,292 195.2%
1830 14,741 43.2%
1840 25,049 69.9%
1850 42,909 71.3%
1860 50,361 17.4%
1870 63,019 25.1%
1880 86,797 37.7%
1890 124,087 43.0%
1900 164,460 32.5%
1910 221,567 34.7%
1920 283,951 28.2%
1930 361,055 27.2%
1940 388,712 7.7%
1950 503,410 29.5%
1960 682,962 35.7%
1970 833,249 22.0%
1980 869,132 4.3%
1990 961,437 10.6%
2000 1,068,978 11.2%
2010 1,163,414 8.8%
Est. 2013 1,212,263 4.2%
U.S. Decennial Census[9]
1790-1960[10] 1900-1990[11]
1990-2000[12] 2010-2013

At the time of the 2010 census, there were 1,163,414 people, 477,235 households and 278,030 families residing in the county. The population density was 2,186 per square mile (844/km²). There were 527,186 housing units at an average density of 872 per square mile (337/km²). The racial makeup of the county was 69.2% White, 21.2% Black or African American, 0.2% Native American, 3.9% Asian, 0.1% Pacific Islander, 2.3% from other races, and 3% from two or more races. 4.8% of the population were Hispanic or Latino of any race.[13] 22.8% were of German, 14.9% Irish, 8.4% English, 5.8% Italian, 2.7% Mexican, and 2.7% Polish ancestries according to 2010 census. 88.1% spoke English and 4% Spanish as their first language.[14]

There were 477,235 households of which 28% had children under the age of 18 living with them, 58.3% were married couples living together, 14.4% had a female householder with no husband present, and 41.7% were non-families. 31.9% of all households were made up of individuals and 7.9% had someone living alone who was 65 years of age or older. The average household size was 2.38 and the average family size was 3.05.[13]

25.10% of the population were under the age of 18, 11.70% from 18 to 24, 33.30% from 25 to 44, 20.10% from 45 to 64, and 9.80% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 94.50 males. For every 100 females age 18 and over, there were 91.50 males.

The median household income was $49,087 and the median family income was $60,158. The per capita income for the county was $26,909. About 8.20% of families and 11.60% of the population were below the poverty line, including 14.20% of those under age 18 and 8.60% of those age 65 or over.[15][16]


Facilities info, see: Franklin County Government Center

Seals of the Clerk of Courts and the Treasurer of Franklin County


Map of Franklin County with municipal and township labels

Franklin County is currently made up of 16 cities, 9 villages, and 17 townships.




Census-designated places[edit]

Other communities[edit]

See also[edit]


  1. ^ "Ohio County Profiles: Franklin County" (PDF). Ohio Department of Development. Retrieved 2007-04-28. 
  2. ^ . United States Census Bureau Retrieved 2014-05-18.  Missing or empty |title= (help)
  3. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  4. ^ "Franklin County data". Ohio State University Extension Data Center. Archived from the original on 2007-12-03. Retrieved 2007-04-28. 
  5. ^ "Statistical Summary". The Ohio State University. Retrieved 10 November 2011. 
  6. ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. p. 131. 
  7. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23. 
  8. ^ Query of Geographic Names Information System
  9. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved November 15, 2014. 
  10. ^ "Historical Census Browser". University of Virginia Library. Retrieved November 15, 2014. 
  11. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved November 15, 2014. 
  12. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". United States Census Bureau. Retrieved November 15, 2014. 
  13. ^ a b
  14. ^ 9.6% foreign born (64% of which weren't US citizens)
  15. ^
  16. ^
  17. ^

Further reading[edit]

External links[edit]

Coordinates: 39°58′N 83°01′W / 39.97°N 83.01°W / 39.97; -83.01