|Delaware County, Ohio|
Location within the U.S. state of Ohio
Ohio's location within the U.S.
|Founded||February 10, 1808 |
|Named for||the Delaware Indians|
|• Total||457 sq mi (1,184 km2)|
|• Land||443 sq mi (1,147 km2)|
|• Water||14 sq mi (36 km2), 3.1%|
|• ( 2017)||200,464|
|• Density||393/sq mi (152/km2)|
|Time zone||Eastern: UTC−5/ −4|
|Footnotes: *Based on population just within the county. |
Delaware County is a county in the U.S. state of Ohio. As of the 2010 census, the population was 174,214.  Its county seat is Delaware, Ohio.  The county was formed in 1808 from Franklin County, Ohio. Both the county and its seat are named after the Delaware Indian tribe. 
Delaware County is included in the Columbus, Ohio Metropolitan Area.
- 1 History
- 2 Geography
- 3 Demographics
- 4 Politics
- 5 Education
- 6 Transportation
- 7 Media
- 8 Points of interest
- 9 Communities
- 10 Notable residents
- 11 See also
- 12 References
- 13 Further reading
- 14 External links
According to the U.S. Census Bureau, the county has a total area of 457 square miles (1,180 km2), of which 443 square miles (1,150 km2) is land and 14 square miles (36 km2) (3.1%) is water.  The county has an even terrain and a fertile soil. 
- Morrow County (north)
- Knox County (northeast)
- Licking County (east)
- Franklin County (south)
- Union County (west)
- Marion County (northwest)
The major rivers of the county are the Scioto River, Olentangy River, Alum Creek, and the Big Walnut Creek. These waterways run from north to south across the county. The Alum Creek Lake  and the Delaware Lake  are reservoirs created on Alum Creek and the Olentangy River, respectively.
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2017 
As of the census of 2000, there were 109,989 people, 39,674 households, and 30,668 families residing in the county. The population density is 249 people per square mile (96/km²). There were 42,374 housing units at an average density of 96 per square mile (37/km²). The racial makeup of the county was 94.25% White, 2.52% Black or African American, 0.14% Native American, 1.54% Asian, 0.03% Pacific Islander, 0.38% from other races, and 1.14% from two or more races. Hispanic or Latino of any race were 1.01% of the population. 26.8% were of German, 11.7% Irish, 11.3% English, 10.7% American and 6.9% Italian ancestry according to 2000 census.
There were 39,674 households out of which 40.10% had children under the age of 18 living with them, 67.70% were married couples living together, 6.70% had a female householder with no husband present, and 22.70% were non-families. 18.10% of all households were made up of individuals and 5.30% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.09.
In the county, the population was spread out with 28.20% under the age of 18, 7.60% from 18 to 24, 32.60% from 25 to 44, 23.30% from 45 to 64, and 8.20% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 98.00 males. For every 100 females age 18 and over, there were 94.90 males.
The median income for a household in the county was $67,258, and the median income for a family was $76,453. Males had a median income of $51,428 versus $33,041 for females. The per capita income for the county was $31,600. About 2.90% of families and 3.80% of the population were below the poverty line, including 4.40% of those under the age of 18 and 4.80% of those 65 and older.
By 2007, the median income for a household and for a family had risen to $80,526 and $94,099 respectively.
As of the 2010 United States Census, there were 174,214 people, 62,760 households, and 47,977 families residing in the county.  The population density was 393.2 inhabitants per square mile (151.8/km2). There were 66,378 housing units at an average density of 149.8 per square mile (57.8/km2).  The racial makeup of the county was 89.7% white, 4.3% Asian, 3.4% black or African American, 0.1% American Indian, 0.6% from other races, and 1.8% from two or more races. Those of Hispanic or Latino origin made up 2.1% of the population.  In terms of ancestry, 34.2% were German, 16.3% were Irish, 14.0% were English, 8.1% were Italian, and 5.7% were American. 
Of the 62,760 households, 41.9% had children under the age of 18 living with them, 65.8% were married couples living together, 7.3% had a female householder with no husband present, 23.6% were non-families, and 19.0% of all households were made up of individuals. The average household size was 2.74 and the average family size was 3.16. The median age was 37.4 years. 
The median income for a household in the county was $87,908 and the median income for a family was $101,698. Males had a median income of $70,949 versus $48,913 for females. The per capita income for the county was $40,682. About 3.4% of families and 4.6% of the population were below the poverty line, including 4.8% of those under age 18 and 5.4% of those age 65 or over. 
Delaware County is one of the Republican party's major strongholds in Ohio.  It last voted for a Democratic presidential candidate in 1916.
The following school districts are located in Delaware County.
- 1 Mainly in Knox County, with portions in Delaware County
- 2 Mainly in Franklin County, with portions in Delaware County and Union County
- 3 Mainly in Marion County, with portions in Delaware County
- 4 Mainly in Morrow County, with portions in Delaware County
- 5 Mainly in Licking County, with portions in Delaware County
- 6 Mainly in Union County, with portions in Delaware County
- 7 Mainly in Franklin County, with portions in Delaware County
The area is served by the Delaware Municipal Airport,  which is strategically located to serve the rapidly developing southern Delaware County area and the north portion of the Franklin County and Columbus areas. The airport contains a 5,000 foot runway, flight terminal, lounges, and weather briefing areas. It is home to approximately 80 aircraft and an estimated 40,000 operations take place per year. Several smaller airports are located in the county.
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The Delaware Gazette, a morning daily founded in 1885, is the dominant local newspaper in Delaware County, while the Sunbury News, a weekly community newspaper, serves eastern Delaware County and residents of the Big Walnut Local School District. Both publications are owned by Brown Publishing Company.
Additional local print publications include ThisWeek Delaware News, which covers the city of Delaware and the villages of Galena and Sunbury; and ThisWeek Olentangy Valley News, which covers Powell and the Olentangy Local School District. The two weekly papers are among 21 published by ThisWeek Community News, headquartered in southern Delaware County. ThisWeek is owned by GateHouse Media, which also owns the Columbus Dispatch. The Village of Shawnee Hills in Southwestern Delaware County is served by a monthly newspaper - The Village Gazette. The Village Gazette is independent/
Delaware, Ohio is famous for The Little Brown Jug, an internationally famous harness race which is part of the Triple Crown of harness racing.
Additional notable places include:
- Delaware Municipal Airport Annual Air Fair 
- Columbus Zoo and Aquarium
- Zoombezi Bay waterpark
- Safari Golf club
- The Germain Amphitheater, formerly the Polaris Amphitheater, closed at the end of 2007 
- Alum Creek State Park  and the Delaware State Park  bring millions of local, national, and international visitors to the area each year.[ citation needed]
- The site of the first Ohio State University football game 
- The Hamburger Inn at 16 N. Sandusky 
- Historical Marker of Rutherford B. Hayes' home on E. William St. 
- The Strand Theater. 
- Polaris centers of commerce (Big commercial business area including Americas 2nd largest low rise office building - the chase McCoy center - and the high end Polaris fashion place mall)
- Perkins Observatory
- Columbus (partly in Franklin County and Fairfield County)
- Delaware (county seat)
- Dublin (partly in Franklin County and Union County)
- Westerville (partly in Franklin County)
- Alum Creek
- Center Village
- East Liberty
- Kingston Center
- Lewis Center
- Olive Green
- Vans Valley
- White Sulphur
Notable natives include Rutherford B. Hayes, who was the 19th President of the United States (1877–1881). His wife, Lucy Webb Hayes, was one of the most popular of first ladies. She strongly supported the Temperance movement, and no alcohol was served in the White House during the Hayes administration. This prompted the press to call her "Lemonade Lucy." She also brought the annual Easter egg roll to the White House lawn.
Among the famous who have inhabited or been associated with the county are:
- Horace Newton Allen, diplomat
- Ben Curtis, professional golfer
- Amos Dolbear, physicist and inventor
- Charles W. Fairbanks, the 26th Vice President of the United States
- Arthur Sherwood Flemming, statesman
- Reuben James, U. S. Naval hero
- Clare Kramer, actress
- Norman Vincent Peale, author
- John Purdue  founding benefactor of Purdue University
- Branch Rickey, Major League Baseball executive
- Buck Rodgers, professional baseball player
- William Rosecrans, U. S. Army Major General
- Frank Sherwood Rowland, Nobel laureate
- Ezra Vogel, professor emeritus, Harvard University
- Jack Hanna, zookeeper, media personality, Director Emeritus of the Columbus Zoo and Aquarium
- Lou Ferrigno, actor and bodybuilder, two-time Mr. Universe winner
- "Ohio County Profiles: Delaware County" (PDF). Ohio Department of Development. Retrieved 2014-05-11.
- "Delaware County data (population)". Ohio State University Extension Data Center. Retrieved 2007-05-10.[ permanent dead link]
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 9, 2011. Retrieved February 7, 2015.
- "Find a County". National Association of Counties. Archived from the original on 2011-05-31. Retrieved 2011-06-07.
- "Delaware County". Ohio History Central. Ohio Historical Society. Retrieved 2014-05-11.
- "America's Best Places To Raise A Family". Forbes. June 30, 2008.
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Archived from the original on May 4, 2014. Retrieved February 7, 2015.
- Ripley, George; Dana, Charles A., eds. (1879). The American Cyclopædia. .
- "Alum Creek State Park". Archived from the original on 2007-06-30. Retrieved 2007-09-12.
- "Delaware State Park". Retrieved 2014-05-11.
- "Population and Housing Unit Estimates". Retrieved June 9, 2017.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved February 7, 2015.
- "Historical Census Browser". University of Virginia Library. Retrieved February 7, 2015.
- Forstall, Richard L., ed. (March 27, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved February 7, 2015.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved February 7, 2015.
- "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Retrieved 2015-12-27.
- "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Retrieved 2015-12-27.
- "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Retrieved 2015-12-27.
- "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Retrieved 2015-12-27.
- Chinni, Dante; Davis, Bob (20 July 2016). "Donald Trump Divides Republicans in Key Ohio County". Wall Street Journal. Retrieved 22 July 2016.
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved 2018-05-01.
- "Delaware Airport". Archived from the original on 2007-08-26. Retrieved 2007-09-12.
- "End of the Road for Germain Amphitheater?". Archived from the original on 2011-05-23. Retrieved 2008-05-19.
- "News & Media - Ohio Wesleyan University". Ohio Wesleyan University.
- "Delaware Ohio Landmark Adds Hours". delawareohrealestate.com. 5 September 2010.
- http://drc.owu.edu/handle/2374.OWES/759[ permanent dead link]
- "Home". The Strand Theatre.
- "Library of Congress Online Catalog". Retrieved 2007-09-12.
- Buckingham, Ray, E. Delaware County Then and Now, History Book, Inc., 1976
- History of Delaware County and Ohio. Chicago: O. L. Baskin & Co., 1880
- Lytle, A. R., History of Delaware County Ohio, Delaware, 1908
- Memorial Record of the Counties of Delaware, union and Morrow, Ohio, Chicago, The Lewis Publishing Company, 1895
- Delaware County Government official site
- Delaware County Memory - Digital archive of historical documents and artifacts from Delaware County