Location of Pennsylvania in the United States
|• Total||19.85 sq mi (51.41 km2)|
|• Land||19.77 sq mi (51.19 km2)|
|• Water||0.09 sq mi (0.22 km2)|
|Elevation||397 ft (121 m)|
|• Density||1,488.57/sq mi (574.75/km2)|
|Time zone||UTC-5 (EST)|
|• Summer (DST)||UTC-4 (EDT)|
Tredyffrin Township ( // Welsh: [trɛ'dɘfrɪn]) is a township located in eastern Chester County, Pennsylvania, United States. The population was 29,332 at the 2010 census. Originally settled in the late 17th century, Tredyffrin is bounded by Delaware and Montgomery counties. It includes on its northern boundary a small part of Valley Forge National Historical Park, where George Washington encamped during the American War of Independence. Tredyffrin and the entire Great Valley region also have many limestone deposits. Tredyffrin is the most populous township in Chester County.
Unincorporated communities within Tredyffrin Township include Chesterbrook, Strafford, a portion of Paoli, and a portion of Wayne, Howellville (the intersection of Swedesford and Howellville Roads) and East Howellville (along Howellville Road, west of the intersection of Howellville Road and the border between Tredyffrin and Easttown Townships). Tredyffrin is bordered by Easttown, East Whiteland, Willistown, Charlestown, Upper Merion, Radnor and Schuylkill townships.
According to the United States Census Bureau, the township has a total area of 19.9 square miles (52 km2), of which 19.8 square miles (51 km2) is land and 0.04 square miles (0.10 km2), or 0.15%, is water.
At the 2010 census, the township was 83.3% non-Hispanic White, 3.3% Black or African American, 0.1% Native American, 9.8% Asian, and 1.4% were two or more races. 2.2% of the population were of Hispanic or Latino ancestry.
As of the censusof 2000, there were 29,062 people, 12,223 households, and 7,834 families residing in the township. The population density was 1,464.9 people per square mile (565.6/km2). There were 12,551 housing units at an average density of 632.6 per square mile (244.3/km2). The racial makeup of the township was 90.88% White, 2.84% African American, 0.11% Native American, 5.12% Asian, 0.01% Pacific Islander, 0.29% from other races, and 0.74% from two or more races. Hispanic or Latino of any race were 1.20% of the population.
There were 12,223 households, out of which 29.0% had children under the age of 18 living with them, 55.9% were married couples living together, 6.2% had a female householder with no husband present, and 35.9% were non-families. 30.1% of all households were made up of individuals, and 9.1% 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 2.99.
In the township the population was spread out, with 23.3% under the age of 18, 4.7% from 18 to 24, 30.1% from 25 to 44, 27.2% from 45 to 64, and 14.7% who were 65 years of age or older. The median age was 40 years. For every 100 females there were 89.9 males. For every 100 females age 18 and over, there were 86.7 males.
The median income for a household in the township was $82,258, and the median income for a family was $105,183 (these figures had risen to $90,915 and $121,809 respectively as of a 2007 estimate). Males had a median income of $76,393 versus $46,124 for females. The per capita income for the township was $47,584. About 2.2% of families and 3.7% of the population were below the poverty line, including 4.6% of those under age 18 and 2.8% of those age 65 or over.
Tredyffrin is governed by a seven-member Board of Supervisors. Four members are elected from the township at-large, while three members are elected from specific districts, though all supervisors are treated equally once on the Board.
|Eastern District||Julie Gosse||Democratic||2023|
|Middle District||Kevin O'Nell||Democratic||2021|
|Western District||K.S. Bhaskar||Democratic||2023|
Party registration as of July 2010 were 45% Republican, 39% Democratic, and 16% Independent and third parties. In the 2008 Presidential election, Tredyffrin voters gave 58% of its votes to Democratic candidate Barack Obama over John McCain, a significant change from previous elections. Mitt Romney vastly improved upon John McCain's performance, but still fell short as Barack Obama carried the township with 52% of the vote in the 2012 Presidential election. Party registration as of December, 2019 stands at 43% Democratic, 39% Republican, 18% Independent and third parties.
On 13 March 1684, William Penn decided to set aside a portion of Pennsylvania for the Welsh to settle in. This area, known as the "Welsh Tract", was surveyed in 1684 and included several modern-day townships, including Tredyffrin. Although the Welsh Tract was originally meant to be a self-ruling municipality, it was divided between Chester County and Philadelphia when that county was created in 1685, and the Welsh subsequently submitted to the authority of Chester County. In 1707, Tredyffrin was incorporated as a township. This name comes from the Welsh tre(f) , which means "town", joined to dyffryn , which means "wide, cultivated valley". Tredyffrin was quick to develop into a thriving township. In 1710, the first mill in Tredyffrin was started by Thomas Jerman on what is now North Valley Road. Swedesford Road, one of the first roads in the township, was created by 1718.
As the population of the township grew, with 30 resident landowners in 1722 and 83 in 1774, churches sprung up to meet the demand by religious residents. In 1710, the Baptist minister Hugh Davis moved to the Great Valley from Britain and, there being several Baptist families in this area, the Great Valley Baptist Church was formed on 22 April 1711. The church originally met in Radnor. However, there were enough members of this Baptist church that by 1722, a log building was erected in Tredyffrin to serve the congregation.
As Tredyffrin includes part of Valley Forge National Historical Park, there are many Revolutionary War-related sites in the township, especially the park and houses where various generals were quartered.
Development in the township was sparked in the 19th century by construction and advertisement of the "Main Line" railroad service, which terminated in Paoli, which straddles the western border of the township.
Tredyffrin-Easttown school district was unusual for the area in being integrated during the early part of the century.In the 1932, the district planned to segregate after building a new school, and African-Americans in the township boycotted the school system for two years in protest (the "School Fight"). In 1934 a negotiated settlement was reached whereby the schools remained integrated, and helped kill school segregation in Pennsylvania.
During the Cold War, a Nike anti-aircraft missile site was active in the township.
County Bridge No. 171, Cramond, Cressbrook Farm, Federal Barn, Great Valley Mill, Greenwood Farm, David Havard House, Lafayette's Quarters, Maj. Gen. Lord Stirling Quarters, Strafford Railroad Station, Valley Forge National Historical Park, Joseph Walker House, Van Leer Cabin and Wetherby-Hampton-Snyder-Wilson-Erdman Log House are listed on the National Register of Historic Places. In addition, the Wharton Esherick Museum is listed as a National Historic Landmark; it was built starting in 1926.
Other notable buildings are:
The rocks of Tredyffrin were laid down in the upper Paleozoic, meaning that they are primarily metamorphic. Limestone is often at the surface in the Great Valley, so many limestone kilns were created in the 18th century. Mine owner William Rennyson sold the fizzy water from his Howellville limestone quarry as "Tredyffrin Water" around 1900.The northern edge of the township is a ridge of quartzite and sandstone (the Cambrian Chickies Formation) including Valley Forge Mountain (or Mount Misery), which was mined for quartz in the 18th century through the mid-19th century.
Tredyffrin Township lies within the Tredyffrin/Easttown School District.Students residing within township boundaries attend Hillside Elementary School, New Eagle Elementary School, and Valley Forge Elementary School for grades K-4. Tredyffrin/Easttown Middle School and Valley Forge Middle School serve students in grades 5–8, and Conestoga High School serves students in grades 9-12.
Private schools in Tredyffrin Township include:
Tredyffrin Township Libraries operates Tredyffrin Public Library and Paoli Library.
The Tredyffrin Library, with 18,000 square feet (1,700 m2) of space as of 1977, is located in the Strafford community. The architectural firm Mitchell/Giurgola developed the Tredyffrin Library. It has an amphitheater that is focused on a park in a southward direction. The library has a single large reading room. The library building has a larger two-story end, while the other end has only one story at the upper level. The facility has toilets, workrooms, and offices at the main level are in a separate element of the structure from the main reading room, and this structure juts out from the flue. Architectural Record said that this "allows direct access to the reading room from the public entrance." In 1990 a new Children's Library was created on the lower level of the building in previously unfinished space.
As the community continued to grow and change, plans were finalized in 2004 to renovate and expand Tredyffrin Library. In September 2007, the library broke ground for a $6 million renovation and expansion. On January 31, 2009, the entire expanded building was open to the public for the first time.
Architectural Record stated that Tredyffrin Library and the library built in Condon Hall of the University of Washington School of Law, which was also designed by Mitchell/Giurgola, have common underlying concepts. According to the publication, the shared concepts were "unusual sensitivity in using natural light to best advantage while warding off the sun," a "quickly apparent organization of functions," and being "responsive to the varying situations in which it is built."
Chester County, colloquially known as Chesco, is a county in the U.S. state of Pennsylvania. As of the 2010 census, the population was 498,886, increasing by 5.2% to a census-estimated 524,989 residents as of 2019. The county seat is West Chester. Chester County was one of the three original Pennsylvania counties created by William Penn in 1682. It was named for Chester, England.
Charlestown Township is a township in Chester County, Pennsylvania, United States. The population was 5,671 at the 2010 census.
Chesterbrook is a census-designated place (CDP) in Chester County, Pennsylvania, United States, just south of Valley Forge National Historical Park. The population was 4,589 at the 2010 census.
East Whiteland Township is a township in Chester County, Pennsylvania, United States. The population was 10,650 at the 2010 census. Mailing addresses associated with East Whiteland include Malvern, Frazer, and a small area of Exton.
Easttown Township is a township in Chester County, Pennsylvania, United States. The population was 10,477 at the 2010 census.
Malvern is a borough in Chester County, Pennsylvania, United States. It is twenty-five miles (40 km) west of Philadelphia. The population was 2,998 at the 2010 census. The borough is bordered by Paoli Pike on the south, Sugartown Road on the west, Willistown Township on the east, and East Whiteland Township on the north. It is south of US 30 and easily accessible to Route 202. The main road through the Borough is King Street, intersected by Warren Avenue. The Malvern ZIP code covers Malvern, and all or parts of East Whiteland, Charlestown, Willistown, East Goshen, East Pikeland, and Tredyffrin Townships. Malvern Borough is between Paoli on the east, and Immaculata University and Exton on the west. It is also a train stop on the SEPTA Paoli/Thorndale Line.
Paoli is a census-designated place in Chester County near Philadelphia, Pennsylvania, United States. It is situated in portions of two townships: Tredyffrin and Willistown. At the 2010 census, it had a total population of 5,575.
Willistown Township is a township in Chester County, Pennsylvania, United States. The population was 10,497 at the 2010 census. At the 1860 census, the population of Willistown was 1,521, and in 1980 it was 8,269.
Newtown Township is a township in Delaware County, Pennsylvania, United States. Prior to 1789 it was part of Chester County. The population was 12,216 as of the 2010 census, and was 19,705 as of 2017.
Radnor Township, often called simply Radnor, is a first class township with home rule status in Delaware County, Pennsylvania, United States. As of the 2019 United States census estimate, the township population is 31,875. Radnor Township is the largest municipality in Delaware County by land area and the fourth-largest by population, following Upper Darby Township, Haverford Township, and Chester.
The Philadelphia Main Line, known simply as the Main Line, is an informally delineated historical and social region of suburban Philadelphia, Pennsylvania. Lying along the former Pennsylvania Railroad's once prestigious Main Line, it runs northwest from Center City Philadelphia parallel to Lancaster Avenue.
Berwyn is a census-designated place (CDP) in Chester County, Pennsylvania, United States. The population was 3,631 at the 2010 census. The area is part of Philadelphia's Main Line suburbs.
Devon is a census-designated place (CDP) located in Easttown Township, Chester County, Pennsylvania, United States. The population was 1,515 at the 2010 census. The area is part of Philadelphia's Main Line suburbs.
Wayne is an unincorporated community centered in Delaware County, Pennsylvania, on the Main Line, a series of highly affluent Philadelphia suburbs located along the railroad tracks of the Pennsylvania Railroad and one of the wealthiest areas in the nation. While the center of Wayne is in Radnor Township, Wayne extends into both Tredyffrin Township in Chester County and Upper Merion Township in Montgomery County. The center of Wayne was designated the Downtown Wayne Historic District in 2012. Considering the large area served by the Wayne post office, the community may extend slightly into Easttown Township, Chester County, as well.
Strafford station is a commuter rail station located in the western suburbs of Philadelphia at Old Eagle School Road and Crestline Road, in Tredyffrin Township, and it is served by most Paoli/Thorndale Line trains.
Tredyffrin/Easttown School District is a school district based in Tredyffrin Township, Chester County, Pennsylvania in the United States.
Strafford is an unincorporated community in the southeastern part of the U.S. state of Pennsylvania, located partly in Tredyffrin Township, Chester County, and partly in Radnor Township, Delaware County. It is served by its own stop on the SEPTA Paoli/Thorndale Line regional rail train. The SEPTA station at Strafford is one of the few buildings that survives from the 1876 Centennial Exposition at Philadelphia. It is also the site of the Strafford School, and the Old Eagle School. It is in the Eastern Standard time zone. Elevation is 440 feet.
Pennsylvania Route 252 is a north–south route that connects PA 320 in Nether Providence Township at its southern terminus to PA 23 in Valley Forge at its northern terminus. The route runs through various townships and boroughs in Delaware and Chester, and Montgomery counties, including Nether Providence Township, Media, Upper Providence Township, Marple Township, Newtown Township, Easttown Township, Tredyffrin Township, and Upper Merion Township. The route intersects many roads including U.S. Route 1 north of Media, PA 3 in Newtown Square, US 30 in Paoli, and US 202 in Tredyffrin Township.
Daylesford is an unincorporated community in Tredyffrin Township, Chester County, Pennsylvania, United States, in the southeastern part of the state, near Philadelphia. Located near the end of the Main Line, it is served by its own stop on the SEPTA Paoli/Thorndale Line.
The David Havard House, also known as the Former Quarters of Lee and Bradford, is a historic home located near Valley Forge in Tredyffrin Township, Chester County, Pennsylvania. During the American Revolutionary War, it served as quarters for several of George Washington's senior officers.
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