|Motto: "Home Of "The Pumpkin Show"|
|• Mayor||Don McIlroy|
|• Total||6.76 sq mi (17.51 km2)|
|• Land||6.64 sq mi (17.20 km2)|
|• Water||0.12 sq mi (0.31 km2)|
|Elevation||696 ft (212 m)|
|• Estimate (2012)||13,453|
|• Density||2,005.1/sq mi (774.2/km2)|
|Time zone||Eastern (EST) (UTC-5)|
|• Summer (DST)||EDT (UTC-4)|
|Area code(s)||740 - 420|
|GNIS feature ID||1056803|
The Delaware Indians were pushed west from Pennsylvania by the coming of the English-led settlers to that state. They were given permission by the Wyandot to settle in the Ohio country, and one of their settlements was Maguck, built by 1750 in the area of modern Circleville.
Noted frontier explorer Christopher Gist was the first recorded European visitor to the Circleville area. Gist reached "Maguck," a small town of about 10 families on the east bank of the Scioto River and the south side of Circleville, on January 20, 1751, and remained in the town until January 24.
Circleville was founded in 1810. It derived its name from the circular portion of a large Hopewell culture earthwork upon which it was built. The original town plan integrated Circleville into the preexisting land with a street layout of concentric circles. An octagonal courthouse stood directly in the center.
Dissatisfaction rose with Circleville's layout, however, and in 1837, the Ohio General Assembly authorized the "Circleville Squaring Company" to convert it into a square. By 1856, this had been completed in several phases. No remaining traces of the original earthworks remain, though a few old buildings retain curved walls that were part of the original circular layout.
On October 13, 1999, an F-3 tornado hit the city. A squall line moving through the region spawned several tornadoes in the county, including the F-3 that hit town. The tornado touched down on the north side of town doing substantial damage to a barber shop and a masonry building. A furniture store was also damaged with a hole in its roof where it was reported that items from inside the store were sucked out. Damage to nearby buildings also occurred as the tornado moved east across the north-central part of town.
The tornado then moved into a residential area in the Northwood Park neighborhood where several homes along Fairlawn Drive were destroyed. Heavy damage to trees and vehicles also occurred in this area. The tornado would lift as it crossed Edgewood Drive, but snapped the tops of some nearby trees as it lifted and moved on.
Circleville is located at (39.602990, -82.939272).
Calamus Swamp is a 19 acre public reserve located 1.5 miles (2.4 km) from the town.
Median home prices in the Circleville area as of 2009 were $120,147.
As of the census of 2010, there were 13,314 people, 5,402 households, and 3,447 families residing in the city. The population density was 2,005.1 inhabitants per square mile (774.2 /km2). There were 6,024 housing units at an average density of 907.2 per square mile (350.3 /km2). The racial makeup of the city was 95.4% White, 1.9% African American, 0.2% Native American, 0.4% Asian, 0.4% from other races, and 1.7% from two or more races. Hispanic or Latino of any race were 1.1% of the population.
There were 5,402 households of which 30.3% had children under the age of 18 living with them, 44.2% were married couples living together, 14.5% had a female householder with no husband present, 5.1% had a male householder with no wife present, and 36.2% were non-families. 30.5% of all households were made up of individuals and 13.5% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 2.90.
The median age in the city was 39.3 years. 23.3% of residents were under the age of 18; 8.9% were between the ages of 18 and 24; 24.8% were from 25 to 44; 25.4% were from 45 to 64; and 17.7% were 65 years of age or older. The gender makeup of the city was 47.9% male and 52.1% female.
As of the census of 2000, there were 13,485 people, 5,378 households, and 3,581 families residing in the city. The population density was 2,037.2 people per square mile (786.5/km²). There were 5,706 housing units at an average density of 862.0 per square mile (332.8/km²). The racial makeup of the city was 95.36% White, 2.54% African American, 0.20% Native American, 0.49% Asian, 0.06% Pacific Islander, 0.27% from other races, and 1.08% from two or more races. Hispanic or Latino of any race were 0.82% of the population.
There were 5,378 households out of which 31.1% had children under the age of 18 living with them, 49.8% were married couples living together, 12.7% had a female householder with no husband present, and 33.4% were non-families. 29.0% of all households were made up of individuals and 13.4% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 2.93.
In the city the population was spread out with 26.7% under the age of 18, 8.6% from 18 to 24, 26.7% from 25 to 44, 22.0% from 45 to 64, and 16.1% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 94.8 males. For every 100 females age 18 and over, there were 85.8 males.
The median income for a household in the city was $34,572, and the median income for a family was $41,943. Males had a median income of $32,342 versus $26,115 for females. The per capita income for the city was $17,220. About 11.1% of families and 13.3% of the population were below the poverty line, including 21.4% of those under age 18 and 6.5% of those age 65 or over.
Employers and Industry
Manufacturing makes up a significant proportion of area industry and employment; in the 2010 census, 3075 county residents (13.4%) were employed in manufacturing. Circleville is home to the largest DuPont chemical plant in Ohio. Opened in the 1950s, it produces Mylar and Tedlar plastic films, the latter used extensively in the production of photovoltaic modules. A GE Lighting plant, recently expanded to produce energy-efficient compact fluorescent lamps, opened in 1948 and currently employs more than 200 people. Other manufacturing concerns in Circleville or surrounding Pickaway County include Aleris, a producer of rolled and extruded aluminum products, and Florida Production Engineering, Inc. (FPE), producing plastic injection molded components for the automotive industry. The former Jefferson-Smurfit paper mill, a 300 acre site, is being redeveloped. Georgia-Pacific, a manufacturer of paperboard containers and other paper products, has a plant located south of town. The PPG Industries Circleville plant is the company's center for polymer resin production, primarily for automotive applications. Fastenal Company distributes industrial, safety and construction supplies from its facility on US Highway 23 west of Circleville.
Circleville hosts the Circleville Pumpkin Show every October.
- Caleb Atwater - known as the "Father of Ohio's Public School System"
- Tony Laubach - storm chaser and meteorologist
- Ted Lewis - Vaudeville performer and bandleader during the "Roaring Twentys". There is a Ted Lewis Museum in the city, as well as a local park that bears his name
- Conchata Ferrell - Actress, best known for playing Berta the housekeeper in the CBS sitcom Two and a Half Men
- Pat Colangeli - ABC World News Person of the Week 
- Ohio Christian University (formerly Circleville Bible College)
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- "Find a County". National Association of Counties. Retrieved 2011-06-07.
- R. Douglas Hurt, The Ohio Frontier: Crucible of the Old Northwest, 1720-1830 (Bloomington: Indiana University Press, 1998) p. 17
- Darlington, William, Christopher Gist's Journals
- History of Circleville. City of Circleville. Retrieved 12 January 2008.
-  NWS Wilmington Damage Survey
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "Number of Inhabitants: Ohio". 18th Census of the United States. U.S. Census Bureau. Retrieved 22 November 2013.
- "Ohio: Population and Housing Unit Counts". U.S. Census Bureau. Retrieved 22 November 2013.
- "Incorporated Places and Minor Civil Divisions Datasets: Subcounty Population Estimates: April 1, 2010 to July 1, 2012". U.S. Census Bureau. Retrieved 25 November 2013.
-  2009 Circleville Home Sales Report
- "Demographics and Income plus other local statistics for Pickaway County P3 Ohio". Pickawayprogress.com. Retrieved 2013-09-22.
- Tuesday, May 22, 2012 8:57 pm (2012-05-22). "DuPont celebrates Tedlar expansion - Circleville Herald: News". Circlevilletoday.com. Retrieved 2013-09-22.
- "News & Events for Pickaway Progress Business Development Project Central Ohio". Pickawayprogress.com. 2010-01-18. Retrieved 2013-09-22.
- Thursday, August 22, 2013 5:00 pm (2013-08-22). "GE plant to add 50 jobs - Circleville Herald: News". Circlevilletoday.com. Retrieved 2013-09-22.
- "Plastic Injection Molding from 100 tons to 3000 tons in Florida, Kentucky and Ohio". Fpe-inc.com. Retrieved 2013-09-22.
- "Projects - Green Investment Group, Inc". Greeninvgroup.com. Retrieved 2013-09-22.
- "Circleville, OH - Life At PPG - College Recruiting". Ppg.com. Retrieved 2013-09-22.
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