|Indiana County, Pennsylvania|
Indiana County Courthouse
Location within the U.S. state of Pennsylvania
Pennsylvania's location within the U.S.
|Founded||November 3, 1806|
|• Total||834 sq mi (2,160 km2)|
|• Land||827 sq mi (2,142 km2)|
|• Water||7.3 sq mi (19 km2), 0.9%|
|• ( 2017)||84,953|
|• Density||105/sq mi (41/km2)|
|Time zone||Eastern: UTC−5/ −4|
Indiana County is a county located in the central west part of the U.S. state of Pennsylvania. As of the 2010 census, the population was 88,880.  Its county seat is Indiana.  Indiana County compromises the Indiana, PA Micropolitan Statistical Area, which is also included in the Pittsburgh-New Castle-Weirton, PA-WV-OH Combined Statistical Area.
Prior to the American Revolutionary War, some settlers proposed this as part of a larger, separate colony to be known as Vandalia, but opposing interests and the war intervened. Afterward, claims to the territory by both the states of Virginia and Pennsylvania had to be reconciled. After this land was assigned to Pennsylvania by the federal government according to the Mason–Dixon line, Indiana County was created on March 30, 1803, from parts of Westmoreland and Clearfield counties and was formally organized in 1806. 
- 1 History
- 2 Geography
- 3 Demographics
- 4 Micropolitan Statistical Area
- 5 Government and politics
- 6 Education
- 7 Environment
- 8 Communities
- 9 Notable natives and residents
- 10 See also
- 11 References
- 12 External links
Indiana County (Indiana meaning "land of the Indians") derives its name from the so-called "Indiana Grant of 1768" that the Iroquois Six Nations were forced to make to "suffering traders" under the Fort Stanwix Treaty of 1768. The Iroquois had controlled much of the Ohio River valley as their hunting grounds since the 17th century, and Anglo-American colonists were moving into the area and wanted to develop it. Traders arranged to force the Iroquois to grant land under the treaty in relations to losses due to Pontiac's Rebellion. 
Some of the grantees joined forces with the Ohio Company, forming a larger development company based on enlarging their grant of land. They proposed that the entire large area would become a new British colony, possibly to be called Pittsylvania or Vandalia. It was to be bordered on the north and west by the Ohio River, and made up of what are now parts of eastern Kentucky, northern West Virginia (then part of the Virginia Colony), and western Pennsylvania. Anglo-European colonists from Virginia and Pennsylvania had already started to move into the area, which was identified by these various names as Indiana and the other above names on some maps of the late 1700s.  
Opposition from other interest groups  and the American Revolutionary War intervened before Britain approved such a colony. Afterward, some United States speculators proposed setting up a state in this area to be called Vandalia, or Westsylvania, as appears on some maps of the period.
But both the states of Virginia and Pennsylvania claimed the land based on their colonial charters. In establishing the Mason–Dixon line, the federal government assigned the Indiana Grant to Pennsylvania.  As population increased after the war, this county was made up in 1803 of territory from Westmoreland and Clearfield counties; it was formally organized in 1806. 
Kentucky and West Virginia continued to be associated with Virginia for some time, being separately admitted as states in the early 19th century and during the American Civil War, respectively. The area in Pennsylvania was unrelated to and was physically separated from the later named Indiana Territory established north of the Ohio River in 1800 by the new United States; that territory was eventually admitted to the Union as the State of Indiana.
In the 21st century, Indiana County comprises the Indiana, PA Micropolitan Statistical Area. This is included in the Pittsburgh-New Castle-Weirton, PA-WV-OH Combined Statistical Area.  It is in the defined region of the Pittsburgh media market. Indiana County is served by three different area codes: 724, 814, and 582.
According to the U.S. Census Bureau, the county has a total area of 834 square miles (2,160 km2), of which 827 square miles (2,140 km2) is land and 7.3 square miles (19 km2) (0.9%) is water.  Located in the county is the Buttermilk Falls Natural Area. 
- Jefferson County (north)
- Clearfield County (northeast)
- Cambria County (southeast)
- Westmoreland County (south)
- Armstrong County (west)
|U.S. Decennial Census
1790-1960  1900-1990 
1990-2000  2010-2017 
As of the census  of 2000, there were 89,605 people, 34,123 households, and 22,521 families residing in the county. The population density was 108 people per square mile (42/km²). There were 37,250 housing units at an average density of 45 per square mile (17/km²). The racial makeup of the county was 96.87% White, 1.57% Black or African American, 0.08% Native American, 0.74% Asian, 0.01% Pacific Islander, 0.16% from other races, and 0.58% from two or more races. 0.51% of the population were Hispanic or Latino of any race. 25.9% were of German, 11.6% Italian, 10.7% Irish, 8.6% American, 7.1% English and 6.8% Polish ancestry.
There were 34,123 households out of which 27.90% had children under the age of 18 living with them, 54.30% were married couples living together, 8.20% had a female householder with no husband present, and 34.00% were non-families. 26.50% of all households were made up of individuals and 11.80% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.99.
In the county, the population was spread out with 21.10% under the age of 18, 16.60% from 18 to 24, 24.80% from 25 to 44, 22.70% from 45 to 64, and 14.90% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 94.00 males. For every 100 females age 18 and over, there were 90.60 males.
The United States Office of Management and Budget  has designated Indiana County as the Indiana, PA Micropolitan Statistical Area (µSA). As of the 2010 U.S. Census  the micropolitan area ranked 4th most populous in the State of Pennsylvania and the 50th most populous in the United States with a population of 88,880. Indiana County is also a part of the Pittsburgh-New Castle-Weirton, PA-OH-WV Combined Statistical Area (CSA), which combines the population of Indiana, as well as the Allegheny, Armstrong, Beaver, Butler, Fayette, Lawrence, Washington and Westmoreland county areas in Pennsylvania. In West Virginia the counties included are Brooke and Hancock. And in Ohio, Jefferson County. The Combined Statistical Area ranked 4th in the State of Pennsylvania and 20th most populous in the United States with a population of 2,660,727.
Indiana County has been strongly Republican in presidential elections for most of its history, only backing Democratic party candidates five times in presidential elections from 1888 to the present day.
As of the 2016 primary election held April 26, 2016, there were 48,710 registered voters across Indiana County's 69 precincts: 20,089 Democrats (41.24%); 22,134 Republicans (45.44%); and 6,487 Independents (13.32%).  This represents a slight demographic shift since November 2008, when a total of 58,077 registered voters were 45.89% (26,653) Democrat, 41.60% (24,159) Republican, and 12.51% (7,265) Independent. 
- Michael Baker, Chairman, Republican
- Rodney Ruddock, Republican
- Sherene Hess, Democrat
- Coroner, Jerry L Overman Jr, Republican
- District Attorney, Patrick Dougherty, Democrat
- Prothonotary, Randy Degenkolb, Republican
- Recorder of Deeds and Register of Wills, Patricia Streams-Warman, Republican
- Sheriff, Robert Fyock, Republican
- Treasurer, Kimberly McCullough, Republican
State representatives 
- Joseph A. Petrarca, Democrat, 55th district
- Jeff Pyle, Republican, 60th district
- David Reed, Republican, 62nd district
- Cris Dush, Republican, 66th district
State senator 
- Armstrong School District (part)
- Apollo-Ridge School District (part)
- Blairsville-Saltsburg School District (part)
- Harmony Area School District (part)
- Homer-Center School District
- Indiana Area School District
- Marion Center Area School District
- Penns Manor Area School District
- Punxsutawney Area School District (part)
- Purchase Line School District (part)
- United School District
- Cambria-Rowe Business College – Indiana
- Indiana University of Pennsylvania – Indiana
- Westmoreland County Community College – Indiana
- WyoTech – Blairsville
The county is the site of the Homer City Generating Station, a coal-burning power plant. In 2002 the plant was ranked as second in emissions in the Toxics Release Inventory (TRI) in Pennsylvania.  In 2003, the plant ranked high in the emissions of both sulfur dioxide and carbon dioxide, ranking 4th and 28th, respectively, in the nation.  Such toxic emissions are injurious to people and other living things.
Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and, in at most two cases, towns. The following boroughs and townships are located in Indiana County:
Census-designated places are geographical areas designated by the U.S. Census Bureau for the purposes of compiling demographic data. They are not actual jurisdictions under Pennsylvania law. Other unincorporated communities, such as villages, may be listed here as well.
† county seat
|Rank||City/Town/etc.||Municipal type||Population (2010 Census)
|4||Chevy Chase Heights||CDP||1,502|
- Edward Abbey, environmentalist and author
- James H. Brady, Governor of Idaho 1909-11, U.S. Senator 1913-18, born in Indiana County
- John Buccigross, ESPN anchor, former co-host of NHL 2Night
- Samuel Kier, "Grandfather of the American Oil Industry"
- Mary D. Lowman, one of first women mayors in Kansas; county native
- Ben McAdoo, head coach, New York Giants
- Jim Nance, football player, running back for Syracuse University and professionally with New England/Boston Patriots
- James Stewart, iconic actor, born in Indiana Borough
- Indiana County Transit Authority
- National Register of Historic Places listings in Indiana County, Pennsylvania
- "State & County QuickFacts". United States Census Bureau. Archived from the original on July 11, 2011. Retrieved November 17, 2013.
- "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
- "Pennsylvania: Individual County Chronologies". Pennsylvania Atlas of Historical County Boundaries. The Newberry Library. 2008. Retrieved March 12, 2015.
- Anderson, James Donald, "Vandalia: The First West Virginia?" West Virginia History, Volume 40, No. 4 (Summer 1979), pp. 375-92 online
- David W. Miller. The Taking of American Indian Lands in the Southeast: A History of Territorial Cessions and Forced Relocations, 1607-1840. McFarland, 2011. p. 41. ISBN 978-0-7864-6277-3
- Gipson, Lawrence Henry, The British Empire Before the American Revolution, 15 vols. New York: Alfred A. Knopf, 1946-1970, IX 457-88
- "Archived copy" (PDF). Archived from the original (PDF) on March 19, 2013. Retrieved January 4, 2017.CS1 maint: Archived copy as title ( link)
- "'Tis the season for tree farmers". Pittsburgh Tribune-Review. December 20, 2004. Archived from the original on October 22, 2006. Retrieved May 16, 2006.
- "2010 Census Gazetteer Files". United States Census Bureau. August 22, 2012. Retrieved March 7, 2015.
- "Buttermilk Falls Natural Area". Indiana County Parks and Trails.
- "Population and Housing Unit Estimates". Retrieved October 16, 2018.
- "U.S. Decennial Census". United States Census Bureau. Archived from the original on May 12, 2015. Retrieved October 16, 2018.
- "Historical Census Browser". University of Virginia Library. Retrieved October 16, 2018.
- Forstall, Richard L., ed. (March 24, 1995). "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved October 16, 2018.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. April 2, 2001. Retrieved March 6, 2015.
- "American FactFinder". United States Census Bureau. Archived from the original on September 11, 2013. Retrieved January 31, 2008.
- "Office of Management and Budget". whitehouse.gov. Retrieved March 28, 2018.
- "Archived copy". Archived from the original on December 21, 2013. Retrieved February 13, 2016.CS1 maint: Archived copy as title ( link)
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved March 28, 2018.
- 2016 Primary Election Results Indiana County, Pennsylvania. Official Website. 2016 Unofficial Election Results. Retrieved on September 5, 2016.
- Running for Office Archived November 26, 2008, at the Wayback Machine. Dos.state.pa.us. Retrieved on July 23, 2013.
- Center, Legislativate Data Processing. "Find Your Legislator". The official website for the Pennsylvania General Assembly. Retrieved May 3, 2017.
- "Figure 3. Mobile Source Contribution to Smog-Forming Emissions in Counties Recommended for Nonattainment under New EPA Ozone Standards". Surface Transportation Policy Project. April 16, 2004. Archived from the original on September 27, 2006. Retrieved May 16, 2006.
- "Pa. ranks among worst states for toxic emissions". Pittsburgh Tribune-Review. November 18, 2002. Archived from the original on May 24, 2007. Retrieved May 16, 2006.
- Environmental Integrity Project & Public Citizen’s Congress Watch (May 2004). "America's Dirtiest Power Plants: Plugged into the Bush Administration" (PDF). Archived from the original (PDF) on April 13, 2006. Retrieved May 16, 2006.
|Wikisource has the text of an 1879 American Cyclopædia article about Indiana County, Pennsylvania.|
- Indiana County official website
- The Indiana County Tourist Bureau
- The Historical & Genealogical Society of Indiana County