Greene County, Pennsylvania
|Founded||February 9, 1796|
|Named for||Nathanael Greene|
|• Total||578 sq mi (1,500 km2)|
|• Land||576 sq mi (1,490 km2)|
|• Water||2.0 sq mi (5 km2) 0.4%%|
| • Estimate |
|• Density||65/sq mi (25/km2)|
|Time zone||UTC−5 (Eastern)|
|• Summer (DST)||UTC−4 (EDT)|
Greene County is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 38,686. Its county seat is Waynesburg. Greene County was created on February 9, 1796, from part of Washington County and named for General Nathanael Greene.
According to the U.S. Census Bureau, the county has a total area of 578 square miles (1,500 km2), of which 576 square miles (1,490 km2) is land and 2.0 square miles (5.2 km2) (0.4%) is water. It has a humid continental climate (Dfa/Dfb) and average monthly temperatures in Waynesburg range from 28.9 °F in January to 71.9 °F in July. 
- Washington County (north)
- Fayette County (east)
- Monongalia County, West Virginia (south)
- Wetzel County, West Virginia (southwest)
- Marshall County, West Virginia (west)
As of the census of 2010, there were 38,686 people, 14,724 households, and 9,970 families residing in the county. The population density was 67 people per square mile (25.9/km2). There were 16,678 housing units at an average density of 29 per square mile (11/km2). The racial makeup of the county was 94.6 percent White, 3.3 percent Black or African American, 0.2% Native American, 0.3 percent Asian, 0.0 percent Pacific Islander, 0.7 percent from other races, and 1.0% from two or more races. 1.2 percent of the population were Hispanic or Latino of any race.
There were 14,724 households, out of which 29.3 percent had children under the age of 18 living with them, 51.5 percent were married couples living together, 10.9 percent had a female householder with no husband present, and 32.3 percent were non-families. 27.0 percent of all households were made up of individuals, and 11.7 percent had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.91.
In the county, the population was spread out, with 19.9 percent under the age of 18, 9.9 percent from 18 to 24, 25.5 percent from 25 to 44, 29.3 percent from 45 to 64, and 15.3 percent who were 65 years of age or older. The median age was 41.1 years. For every 100 females there were 106.2 males. For every 100 females age 18 and over, there were 105.6 males.
Government and politics
Greene County was long a Democratic stronghold, due to the strong unionization of the county's steel mills; between 1932 and 2000, the Democratic presidential candidate won the county in every election except in the Republican landslide of 1972. Due to the decline of the Pittsburgh area's steel industry (in lockstep with most other Appalachian counties), and the Democratic Party's shift on cultural issues like the environment and guns, the county has shifted towards the Republican Party, and in 2016 Donald Trump won the county with 68.4% of the vote.
As of November 7, 2017, there were 21,671 registered voters in the county. The number of registered Democrats outnumbers the number of registered Republicans by a margin of 3,621 voters (16.71%); there was 11,659 registered Democrats, 8,038 registered Republicans, 1,858 voters registered to other parties, 64 to the Libertarian Party and 52 voters registered to the Green Party.
|Voter registration and party enrollment|
|Party||Number of voters||Percentage|
- Mike Belding, Republican
- Betsy McClure, Republican
- Blair Zimmerman, Democrat
Other county officials
- President Judge, Hon. Louis Dayich
- Associate Judge, Vacant
- District Attorney, David Russo, Republican
- Sheriff, Marcus Simms, Democrat
- Coroner, Gene Rush, Republican
- Clerk of Courts, Sherry Wise, Democrat
- Prothonotary, Susan White, Democrat
- Recorder of Deeds and Register of Wills, Donna Tharp, Democrat
- Treasurer, Cory Grandel, Democrat
- Controller, Ami Cree, Democrat
United States Senate
This section needs expansion. You can help by adding to it. (July 2016)
Greene County's development commission has assisted area business since 1998.
The Meadow Ridge office park has served the county since the early 2000s.
Two power plant construction projects are underway in Greene County. Hill Top Energy Center, a natural gas-fired power plant with a generating capacity of 625 megawatts, is scheduled to begin operations in the summer of 2021. A new 1,000-megawatt natural gas power plant on the site of the former Hatfield's Ferry power station is scheduled to begin operations in mid-2022. 
Colleges and universities
Public school districts
- Carmichaels Area School District
- Central Greene School District
- Jefferson-Morgan School District
- Southeastern Greene School District
- West Greene School District
Some schools within the five above districts include:
- Open Door Christian School in Waynesburg (grades K-12)
- Greene Valley Christian Academy in Rices Landing (grades K-8)
- Eva K Bowlby Public Library in Waynesburg
- Flenniken Public Library in Carmichaels, Pennsylvania
- Greene County Library System in Jefferson, Pennsylvania
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 Greene 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)|
- Greene Connections: Greene County, Pennsylvania Archives Project
- National Register of Historic Places listings in Greene County, Pennsylvania
- Martines, Jamie. A Pennsylvania county went from bust to boom times with natural gas. Now, it’s nearly broke. Spotlight PA. March 8, 2021
- White-Nockleby, Caroline; Wahid, Mimi; Boone, Caroline; Delhees, Benjamin. Changes in the contribution of coal to tax revenues in Greene County, PA, 2010-2019 Massachusetts Institute of Technology Environmental Solutions Initiative. March 2021.
- Ohio River Valley Institute. Appalachia's Natural Gas Counties: Contributing more to the U.S. economy and getting less in return. The Natural Gas Fracking Boom and Appalachia's Lost Economic Decade February 12, 2021.
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- Niedbala, Bob. "Company receives final permit for natural gas power plant at Hatfield's Ferry". Observer-Reporter, Washington PA. Retrieved 10 May 2021.
- Tony, Mike (March 20, 2019). "Groundwater pollutants at former Hatfield's Ferry Power Station cited in environmental report". Herald-Standard, Uniontown PA. Retrieved 10 May 2021.
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- "Open Door Christian School Profile (2018-19) - Waynesburg, PA". Private School Review. Retrieved 26 November 2018.
- "Explore Open Door Christian School in Waynesburg, PA". GreatSchools.org. Retrieved 26 November 2018.
- "Explore Greene Valley Christian Academ in Rices Landing, PA". GreatSchools.org. Retrieved 26 November 2018.
- FAA Airport Form 5010 for WAY PDF. Federal Aviation Administration. Effective May 31, 2012.
- "2010 U.S. Census website". United States Census Bureau. Retrieved 2013-02-10.