|Founded||March 28, 1781|
|Named for||George Washington|
|• Total||861 sq mi (2,230 km2)|
|• Land||857 sq mi (2,220 km2)|
|• Water||3.9 sq mi (10 km2) 0.5%%|
| • Estimate |
|• Density||243/sq mi (94/km2)|
|Time zone||UTC−5 (Eastern)|
|• Summer (DST)||UTC−4 (EDT)|
Washington County is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 207,820.Its county seat is Washington.
Washington County is part of the Pittsburgh, PA Metropolitan Statistical Area.
The county is home to Washington County Airport, three miles (5 km) southwest of Washington.
The county was created on March 28, 1781, from part of Westmoreland County. The city and county were both named after American Revolutionary War leader George Washington, who eventually became the first President of the United States. The town of Charleroi got its name from the Belgian city of Charleroi. There lived many Belgian immigrants in the Monongahela area at the end of the 19th century, some of whom were glass makers.
According to the U.S. Census Bureau, the county has a total area of 861 square miles (2,230 km2), of which 857 square miles (2,220 km2) is land and 3.9 square miles (10 km2) (0.5%) is water.
Washington County has a humid continental climate (Köppen Dfb), with warm summers and cold, snowy winters. Precipitation is highest in the summer months, with an annual average of 38.87 in (987 mm). Snow usually falls between November and April, with an average of 37.8 in (96 cm).
|Climate data for Washington, Pennsylvania (3mi NE) (1981–2010 normals, extremes 1975–present)|
|Record high °F (°C)||70|
|Average high °F (°C)||35.1|
|Daily mean °F (°C)||26.0|
|Average low °F (°C)||16.8|
|Record low °F (°C)||−25|
|Average precipitation inches (mm)||2.87|
|Average snowfall inches (cm)||10.5|
|Average precipitation days (≥ 0.01 in)||16||14||14||14||15||12||12||11||11||13||14||15||162|
|Average snowy days (≥ 0.1 in)||12||10||5||1||0||0||0||0||0||0||3||8||38|
|U.S. Decennial Census |
1990–2000 2010–2019 2010-2020
As of the census mile (39/km2). The racial makeup of the county was 95.27% White, 3.26% Black or African American, 0.09% Native American, 0.36% Asian, 0.02% Pacific Islander, 0.19% from other races, and 0.82% from two or more races. 0.58% of the population were Hispanic or Latino of any race. 18.3% were of German, 17.2% Italian, 10.6% Irish, 8.6% English, 7.9% Polish and 6.2% American ancestry.of 2000, there were 202,897 people, 81,130 households, and 56,060 families residing in the county. The population density was 237 people per square mile (91/km2). There were 87,267 housing units at an average density of 102 per square
There were 81,130 households, out of which 28.40% had children under the age of 18 living with them, 55.20% were married couples living together, 10.30% had a female householder with no husband present, and 30.90% were non-families. 27.00% of all households were made up of individuals, and 13.20% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.96.
In the county, the population was spread out, with 22.20% under the age of 18, 7.70% from 18 to 24, 27.20% from 25 to 44, 25.00% from 45 to 64, and 17.90% who were 65 years of age or older. The median age was 41 years. For every 100 females there were 92.40 males. For every 100 females age 18 and over, there were 89.00 males.
As of 1800, this county was largely settled by people of Scot-Irish heritage because "prime lands" were already taken by the Germans and the Quakers.
The County of Washington is governed by a three-member publicly elected commission. The three commissioners serve in both executive and legislative capacities. By state law, the commission must have a minority party guaranteeing a political split on the commission. Each term is for four years.
The three current commissioners for Washington County are Lawrence Maggi (Democrat), Diana Irey (Republican), and Nick Sherman (Republican).
Maggi was the Democratic nominee for Pennsylvania's 18th congressional district against Republican incumbent Tim Murphy in 2012. Maggi lost to Murphy and earned only 36 percent of the vote. Irey was the Republican candidate for Pennsylvania's 12th congressional district and lost to the late Democratic incumbent John Murtha in the 2006 election.
The Washington County Court of Common Pleas, the Twenty-Seventh Judicial District of Pennsylvania, is the state trial court, sitting in and for Washington County. It serves as the court of original jurisdiction for the region. There are five judges, which the county's citizens elect to ten year terms, under the laws of the Commonwealth. The President Judge is Katherine B. Emery; she is the most senior member of the bench. Judges of the court are:
Additionally, magisterial district judges (MDJs) serve throughout the county to hear traffic citations, issue warrants, and decide minor civil matters.
The Democratic Party has been historically dominant in county-level politics and national politics, only voting Republican for president in Richard Nixon's 1972 landslide victory over George McGovern between 1928 & 2008. However, like much of Appalachian coal country, Washington has trended strongly Republican in recent years. In 2000, Democrat Al Gore won 53% of the vote and Republican George W. Bush won 44%. In 2004, Democrat John Kerry received 50.14% of the vote and Bush received 49.57% a difference of 552 votes. In 2008, Republican John McCain won 51% to Democrat Barack Obama's 46% and each of the three state row office winners carried Washington County.
As of November 1, 2021, there are 142,119 registered voters in the county. Registered Republicans have a plurality of 65,230 registered voters, compared to 59,506 registered Democrats, 13,226 registered non-affiliated voters, and 4,157 voters registered to other parties.
|Voter registration and party enrollment|
|Party||Number of voters||Percentage|
Pony League baseball was founded in Washington County in 1951 for 13 and 14 year old boys and its headquarters are located here. As of 2016, more than a half-million youth in the U.S. and 40 other nations participate. The televised Pony League World Series held annually in August at Washington's Lew Hays Pony Field attracts teenage teams from around the world.
Washington County is also the home of the Pennsylvania Trolley Museum.Washington County is also famous for its Rock Shelters at Meadowcroft Village, which are one of the best preserved and oldest Pre-Clovis Native American dwellings in the country. The county has 21 covered bridges still standing.
The Whiskey Rebellion culminated in Washington. The home of David Bradford, one of the rebellion leaders, is located in Washington and is a national landmark.Just a couple blocks away is the F. Julius LeMoyne House, which serves as the headquarters of the Washington County Historical Society.
Washington County is the home of the first crematory in the United States.
In 1981, the Pennsylvania Historical and Museum Commission installed a historical marker noting the historic importance of the county.
Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and, in at most two cases, towns. The following cities, boroughs and townships are located in Washington 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.
The population ranking of the following table is based on the 2010 census of Washington County.
|Rank||City/Town/etc.||Municipal type||Population (2010 Census)|
|18||McDonald (partially in Allegheny County )||Borough||2,149|
Allegheny County is located in the southwest of the U.S. state of Pennsylvania. As of the 2020 census, the population was 1,250,578, making it the state's second-most populous county, following Philadelphia County. The county seat is Pittsburgh. Allegheny County is included in the Pittsburgh, PA Metropolitan Statistical Area, and in the Pittsburgh Designated Market Area.
Armstrong County is a county located in the U.S. state of Pennsylvania. As of the 2020 census, the population was 65,558. The county seat is Kittanning. The county was organized on March 12, 1800, from parts of Allegheny, Westmoreland and Lycoming Counties. It was named in honor of John Armstrong, who represented Pennsylvania in the Continental Congress and served as a major general during the Revolutionary War.
Westmoreland County is a county located in the U.S. state of Pennsylvania. At the 2010 census, the population was 365,169. The county seat is Greensburg. Formed from, successively, Lancaster, Northumberland, and later Bedford counties, Westmoreland County was founded on February 26, 1773, and was the first county in the colony of Pennsylvania whose entire territorial boundary was located west of the Allegheny Mountains. Westmoreland County originally included the present-day counties of Fayette, Washington, Greene, and parts of Beaver, Allegheny, Indiana, and Armstrong counties. It is named after Westmorland, a historic county of England.
Warren County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 41,815. Its county seat is Warren. The county was formed in 1800 from parts of Allegheny and Lycoming counties; attached to Crawford County until 1805 and then to Venango County until Warren was formally organized in 1819.
Northampton County is a county in the northeastern section of the U.S. state of Pennsylvania. As of the 2020 census, the population was 312,951. Its county seat is Easton. The county was formed in 1752 from parts of Bucks County. Its namesake was Northamptonshire, England. The county seat of Easton was named for the country house Easton Neston in that shire.
McKean County is a rural county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 43,450. Its county seat is Smethport. The county was created in 1804 and organized in 1826. It was named in honor of former Pennsylvania Governor and Declaration of Independence signer Thomas McKean.
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.
Elk County is a county in the U.S. state of Pennsylvania. As of the 2020 United States Census, the population was 30,990. Its county seat is Ridgway. The county was created on April 18, 1843, from parts of Jefferson, Clearfield and McKean Counties, and is named for the eastern elk that historically inhabited the region.
Butler County is located in the western part of the U.S. state of Pennsylvania. As of the 2020 census, the population was 193,763. Its county seat is Butler. Butler County was created on March 12, 1800, from part of Allegheny County and named in honor of General Richard Butler, a hero of the American Revolution.
Blair County is a county located in the U.S. Commonwealth of Pennsylvania. As of the 2020 census, the population was 122,822. Its county seat is Hollidaysburg. The county was created on February 26, 1846, from parts of Huntingdon and Bedford counties.
Burgettstown is a borough in Washington County, Pennsylvania, United States. It is a part of the Pittsburgh metropolitan area. The population was 1,424 according to the 2020 census. The borough is best known as the home of The Pavilion at Star Lake, a 23,000-seat outdoor amphitheater that hosts many of the Pittsburgh area’s headlining concerts.
Charleroi is a borough in Washington County, Pennsylvania, along the Monongahela River, 21 miles south of Pittsburgh. Charleroi was settled by Walloons in 1890 and incorporated in 1891. The 2020 census recorded a population of 4,210.
Donora is a borough in Washington County, Pennsylvania, United States, approximately 20 miles (32 km) south of Pittsburgh on the Monongahela River.
Rostraver Township is a township in Westmoreland County, Pennsylvania, United States. The population was 11,374 at the 2020 census.
Pennsylvania Route 88 is a 68-mile-long (109 km) north–south state highway located in southwestern Pennsylvania. The southern terminus of the route is at U.S. Route 119 (US 119) in Point Marion less than 2 miles (3 km) from the Pennsylvania-West Virginia border. The northern terminus is at PA 51 in Pittsburgh. PA 88 runs parallel to the Monongahela River for almost its entire length.
Pennsylvania Route 837 is a state route located in western Pennsylvania. The southern terminus of the route is at Pennsylvania Route 88 in the Carroll Township hamlet of Wickerham Manor. The northern terminus is at U.S. Route 19 and PA 51 near downtown Pittsburgh at the junction of the Ohio, Allegheny and Monongahela rivers. The highway parallels the Monongahela River for all of its route with the exceptions of its extreme north and south ends. Popular amusement park Kennywood is located along this route.
Pennsylvania Route 906 is a 10.6-mile-long (17.1 km) state highway located in Fayette, Westmoreland, and Allegheny Counties in Pennsylvania. The southern terminus is at PA 201 in Washington Township. The northern terminus is at PA 136 in Forward Township.
Pennsylvania State Senate District 46 includes parts of Beaver County and Washington County and all of Greene County. More specifically, it includes the following areas:
Mid Mon Valley Transit Authority is a public transportation service located in Washington County, Westmoreland County, and a small portion of Fayette County in Pennsylvania. It provides inter-city bus and paratransit service to select communities within the area. The Mon Valley region is located within the metropolitan area of Pittsburgh; however, daily bus routes are provided to the city, with hourly service for much of the day on Monday through Friday.
Lawrence County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 91,108. The county seat is New Castle.