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Lehigh County
Old Lehigh County Courthouse in Allentown, built between 1814 and 1819
Old Lehigh County Courthouse in Allentown, built between 1814 and 1819
Flag of Lehigh County
Flag
Official seal of Lehigh County
Seal
Map of Pennsylvania highlighting Lehigh County
Location within the U.S. state of Pennsylvania
Map of the United States highlighting Pennsylvania
Pennsylvania's location within the U.S.
Country  United States
State  Pennsylvania
Founded March 6, 1812
Named for Lehigh River
Seat Allentown
Largest city Allentown
Area
 • Total 348 sq mi (900 km2)
 • Land 345 sq mi (890 km2)
 • Water 3.1 sq mi (8 km2)  0.9%%
Population
 (2020)
 • Total 374,557
 • Density 1,046/sq mi (404/km2)
Time zone UTC−5 (Eastern)
 • Summer (DST) UTC−4 (EDT)
Congressional district 7th

Lehigh County (Pennsylvania Dutch: Lechaa Kaundi) is a county in the Commonwealth of Pennsylvania. As of the 2020 census, the county's population was 374,557. Its county seat is Allentown, the state's third-largest city after Philadelphia and Pittsburgh.

Along with Northampton County to its east, the two counties combine to form the Lehigh Valley region of eastern Pennsylvania, the third-largest metropolitan area of Pennsylvania with a population of 861,889 as of 2020. Lehigh County is one of the fastest-growing counties in Pennsylvania and the more highly populated of the two counties. Both counties are part of the Philadelphia television market, the fourth-largest television market in the nation.

The county is named for the Lehigh River, a 109-mile-long (175 km) tributary of the Delaware River, which flows through Lehigh County. During the Industrial Revolution, the Lehigh River served a vital role in the nation's development by offering one of the first transportation and trading routes for mining products, including anthracite, iron, manganese, limestone, and ultimately manufactured steel products.

Lehigh County falls geographically between two Pennsylvania Appalachian mountain ridges, Blue Mountain to the county's north and South Mountain to its south. Lehigh County borders Montgomery County to its south, Bucks County to its southeast, Northampton County to its east, Carbon County to its north, Schuylkill County to its northwest, and Berks County to its southwest.

The county is located 64 miles (103 km) northwest of Philadelphia and 93 miles (150 km) west of New York City.

History

Shelter House Emmaus PA 2
Shelter House in Emmaus, constructed in 1734 by Pennsylvania German settlers, is believed to be the oldest continuously occupied building structure in both Lehigh County and the Lehigh Valley and among the oldest still-standing building structures in Pennsylvania.
2021 - Monument - Looking West - Allentown PA
The Soldiers and Sailors Monument, erected in 1899 at 7th and Hamilton streets in Center City Allentown, honors men from Allentown and its suburbs killed in their volunteer service in the 47th Pennsylvania Infantry Regiment and other Union Army units during the American Civil War.

Settlement and founding

Lehigh County was first settled around 1730 and was formed in 1812 when Northampton County was divided into two counties. The county is named after the Lehigh River, a 109-mile-long (175 km) river that runs through the county and whose name is derived from the Lenape Indian term Lechauweki or Lechauwekink, meaning "where there are forks." Shelter House, constructed in Emmaus in 1734 by Pennsylvania German settlers, is the oldest continuously occupied structure in both Lehigh County and Lehigh Valley and among the oldest still-standing building structures in the U.S. state of Pennsylvania.

American Revolution

Some of the first resistance to British colonialism, which led ultimately to the American Revolutionary War, began in present-day Lehigh County. On December 21, 1774, patriots in the area formed one of the colonies' first Committee of Observations. Following the Declaration of Independence, patriot militas pressured Tories out of Allentown and the surrounding area, and the colonial government in the area began to break down.

After Washington and the Continental Army were defeated at the Battle of Brandywine on September 11, 1777, the revolutionary capital of Philadelphia was left defenseless and Pennsylvania's Supreme Executive Council ordered that eleven Philadelphia bells, including the Liberty Bell (then known as the State House Bell), be taken down and moved to present day Allentown (then called Northampton Towne) and hidden in the basement of Zion Reformed Church on present day West Hamilton Street to protect them from being melted down by the British Army for use as munitions.

Industrial Revolution

The opening of the Lehigh Canal beginning in 1827 transformed Allentown and Lehigh County from a rural agricultural area dominated by German-speaking people into an urbanized industrialized area and expanded the city's commercial and industrial capacity greatly. With this, Lehigh County underwent significant industrialization, ultimately becoming a major 20th century center for heavy industry and manufacturing and one of several hubs for the Industrial Revolution.

American Civil War

Following the Union Army's defeat at the Battle of Fort Sumter and Lincoln's April 15, 1861, proclamation calling for state militia to provide 75,000 volunteer troops to defend the nation's capital of Washington, D.C., Allentown deployed the Allen Infantry, also known as the Allen Guards and composed of volunteers from Allentown and its surrounding suburbs. The unit mustered in for duty on April 18, 1861. As the Civil War progressed, multiple Union Army units were drawn from Lehigh County, including roughly seventy percent of the 47th Pennsylvania Infantry Regiment.

On October 19, 1899, a monument in honor of the Lehigh County men killed in their volunteer service to preservation of the Union, the Soldiers and Sailors Monument, was erected at Seventh and Hamilton streets in Center City Allentown, where it still stands.

Geography

2017 - Hamilton Street Christmas Skyline - Allentown PA
The city skyline of Allentown, Lehigh County's largest city, at Christmas 2017
Allentown viewed from Egypt
South Mountain, part of the Appalachian Mountain range in Lehigh County, with Allentown in the foreground in December 2010
Watercourse
Lehigh River, a 109-mile-long (175 km) tributary of the Delaware River, in Lehigh County near Slatington in June 2007

Lehigh County has a total area of 348 square miles (900 km2), 345 square miles (890 km2) of which is land and 3.1 square miles (8.0 km2) (0.9%) of which is water.

Topography

Lehigh County borders two Appalachian mountain ridges. To the north, the county borders Blue Mountain, which has an altitude of 1,300 to 1,604 feet (396 to 489 m). To the south, it is bordered by South Mountain, which has an altitude of 700 to 1,100 feet (210 to 340 m) and cuts through the southern portions of both Lehigh and Northampton counties. The Lehigh County's highest point is near Germansville at Bake Oven Knob, a mass of Tuscarora conglomeratic rocks that rise about 100 feet (30 m) above the main Blue Mountain ridge in northwestern Heidelberg Township.

Lehigh County is part of the Delaware River watershed. Most of the county is drained by the Lehigh River and its tributaries, though the Schuylkill River also drains regions in the county's south through Perkiomen Creek and (in the county's northwest) through Maiden Creek.

Adjacent counties

Climate

Lehigh County's climate falls in the humid continental climate zone. The variety is hot-summer (Dfa) except in the county's higher elevation areas, where it is warm-summer (Dfb). Summers are typically hot and muggy, fall and spring are generally mild, and winter is cold. Precipitation is almost uniformly distributed throughout the year.

In Allentown, January lows average −6 °C (21 °F) and highs average 1.3 °C (34.3 °F). The lowest officially recorded temperature was −26.7 °C (−16.1 °F) in 1912. July lows average 17.6 °C (63.7 °F) and highs average 29.2 °C (84.6 °F) with an average relative humidity of 82%. The highest temperature on record was 40.6 °C (105.1 °F) in 1966. Early fall and mid-winter are generally driest with October being the driest month with only 74.7 mm of average precipitation.

Snowfall is variable with some winters bringing light snow and others bringing numerous significant snowstorms. Average snowfall is 82.3 centimetres (32.4 in) per year, with the months of January and February receiving the most now with just over 22.86 centimetres (9.00 in) in each of these months. Rainfall is generally spread throughout the year with eight to twelve wet days per month, at an average annual rate of 110.54 centimetres (43.52 in).

The hardiness zone in the majority of the county has increased from 6b to 7a. 6b still exists in some northern and higher areas. [1]

Climate data for Allentown, Pennsylvania (Lehigh Valley International Airport) 1991-2020 normals (Records x-2021)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °F (°C) 72
(22)
81
(27)
87
(31)
93
(34)
97
(36)
100
(38)
105
(41)
100
(38)
99
(37)
93
(34)
81
(27)
72
(22)
105
(41)
Mean daily maximum °F (°C) 38.4
(3.6)
41.6
(5.3)
50.8
(10.4)
63.4
(17.4)
73.5
(23.1)
81.9
(27.7)
86.4
(30.2)
84.3
(29.1)
77.4
(25.2)
65.5
(18.6)
53.8
(12.1)
43.1
(6.2)
63.3
(17.4)
Daily mean °F (°C) 30.1
(−1.1)
32.4
(0.2)
40.7
(4.8)
51.8
(11.0)
62.0
(16.7)
70.9
(21.6)
75.6
(24.2)
73.6
(23.1)
66.3
(19.1)
54.6
(12.6)
43.9
(6.6)
35.0
(1.7)
53.1
(11.7)
Mean daily minimum °F (°C) 21.8
(−5.7)
23.2
(−4.9)
30.5
(−0.8)
40.3
(4.6)
50.6
(10.3)
59.9
(15.5)
64.7
(18.2)
62.8
(17.1)
55.2
(12.9)
43.8
(6.6)
34.1
(1.2)
26.8
(−2.9)
42.8
(6.0)
Record low °F (°C) −15
(−26)
−12
(−24)
−5
(−21)
12
(−11)
28
(−2)
39
(4)
46
(8)
41
(5)
30
(−1)
21
(−6)
3
(−16)
−8
(−22)
−15
(−26)
Average precipitation inches (mm) 3.30
(84)
2.77
(70)
3.63
(92)
3.67
(93)
3.65
(93)
4.40
(112)
5.30
(135)
4.56
(116)
4.84
(123)
4.14
(105)
3.24
(82)
3.86
(98)
47.36
(1,203)
Average snowfall inches (cm) 9.8
(25)
10.8
(27)
6.3
(16)
0.5
(1.3)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.0
(0.0)
0.2
(0.51)
0.9
(2.3)
4.6
(12)
33.1
(84)
Average precipitation days (≥ 0.01 in) 11 10 11 12 12 11 11 10 10 10 9 12 129
Average snowy days (≥ 0.1 in) 5 4 3 0 0 0 0 0 0 0 1 3 16
Source: NOAA

Demographics

Historical population
Census Pop.
1820 18,895
1830 22,256 17.8%
1840 25,787 15.9%
1850 32,479 26.0%
1860 43,753 34.7%
1870 56,796 29.8%
1880 65,969 16.2%
1890 76,631 16.2%
1900 93,893 22.5%
1910 118,832 26.6%
1920 148,101 24.6%
1930 172,893 16.7%
1940 177,533 2.7%
1950 198,207 11.6%
1960 227,536 14.8%
1970 255,304 12.2%
1980 272,349 6.7%
1990 291,130 6.9%
2000 312,090 7.2%
2010 349,497 12.0%
2020 374,557 7.2%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2019

As of the 2020 census, the county's population was 374,557. The county's population growth of 7.2% since 2010 is among the fastest in the state. The racial makeup of the county, as of the 2020 census, was 60.8% White, 26% Hispanic or Latino, 6.12% Black or African American, 3.66% Asian, 3.33% from other or mixed races, 0.02% Pacific Islander, and 0.1% Native American.

Education

Baum School of Art, Allentown PA
Baum School of Art in Allentown in January 2009
Cedar Crest College (6)
Cedar Crest College in Allentown in March 2014
Muhlenberg College 04
Muhlenberg College in Allentown in March 2014
William Allen High School, Allentown PA
Allen High School, one of Allentown's two large public high schools, in July 2008
Salisbury High School, LehighCo PA
Salisbury High School in Salisbury Township in June 2015

Four-year colleges and universities

  • Cedar Crest College, Allentown
  • DeSales University, Center Valley
  • Muhlenberg College, Allentown
  • Penn State Lehigh Valley, Center Valley

Two-year colleges and technical institutes

  • Baum School of Art, Allentown
  • Lehigh Carbon Community College, Schnecksville (main campus), and Donley Center, Allentown (satellite campus)
  • Lincoln Tech, Allentown

Public school districts

School districts include:

  • Allentown School District
    • William Allen High School, Allentown
    • Louis E. Dieruff High School, Allentown
    • Francis D. Raub Middle School, Allentown
    • Harrison-Morton Middle School, Allentown
    • South Mountain Middle School, Allentown
    • Trexler Middle School, Allentown
  • Bethlehem Area School District
  • Catasauqua Area School District
  • East Penn School District
    • Emmaus High School, Emmaus
    • Eyer Middle School, Macungie
    • Lower Macungie Middle School, Macungie
  • Northern Lehigh School District
    • Northern Lehigh High School, Slatington
    • Northern Lehigh Middle School, Slatington
  • Northwestern Lehigh School District
    • Northwestern Lehigh High School, New Tripoli
    • Northwestern Lehigh Middle School, New Tripoli
  • Parkland School District
    • Parkland High School, South Whitehall Township
    • Orefield Middle School, Orefield
    • Springhouse Middle School, Allentown
  • Salisbury Township School District
    • Salisbury High School, Salisbury Township
    • Salisbury Middle School, Allentown
  • Southern Lehigh School District
    • Southern Lehigh High School, Center Valley
    • Southern Lehigh Middle School, Center Valley
  • Whitehall-Coplay School District
    • Whitehall High School, Whitehall Township
    • Whitehall-Coplay Middle School, Whitehall Township

Public charter schools

  • Lincoln Leadership Academy Charter School, Allentown
  • Roberto Clemente Charter School, Allentown
  • Seven Generations Charter School, Emmaus

Private high schools

  • Allentown Central Catholic High School, Allentown
  • Salem Christian School, Macungie

Vocational high school

  • Lehigh Career and Technical Institute, Schnecksville

Transportation and infrastructure

Air

ABE terminal (2)
Lehigh Valley International Airport, Pennsylvania's fourth-busiest airport, in Hanover Township in Lehigh County

Lehigh County's primary commercial airport is Lehigh Valley International Airport (IATA: ABEICAO: KABE), located in Hanover Township in the county. The county is also served by Allentown Queen City Municipal Airport, a two-runway general aviation facility located off Lehigh Street in Allentown used predominantly by private aviation.

Bus

Public bus service in Lehigh County is available through LANta. Several private bus lines, including Trans-Bridge Lines, provide bus service from Allentown to New York City's Port Authority Bus Terminal, Philadelphia's Greyhound Terminal and 30th Street Station, Atlantic City's Bus Terminal, and other regional locations.

Major highways

2022-09-23 11 09 58 View east along Interstate 78 and south along Pennsylvania State Route 309 from the overpass for Rock Road in Upper Saucon Township, Lehigh County, Pennsylvania
The merger of I-78 East and PA Route 309 South in Lehigh County in September 2022
  • I-78
  • I-476 / Penna Turnpike NE Extension
  • US 22
  • US 222
  • PA 29
  • PA 100
  • PA 143
  • PA 145
  • PA 222
  • PA 309
  • PA 329
  • PA 378
  • PA 863
  • PA 873
  • PA 987
  • Cedar Crest Boulevard
  • Lehigh Street
  • Tilghman Street

Media

Newspapers

The Morning Call (in Allentown), The Express-Times (in Easton), and The Times News (in Lehighton) each cover Lehigh County.

Radio

Lehigh County-area radio stations include WAEB-AM in Allentown (talk and news), B104 in Allentown (contemporary hits), WZZO in Bethlehem (classic rock), WHOL in Allentown (rhythmic contemporary), and others. Some major New York City stations and every major Philadelphia station are received in the county.

Television

Lehigh County is part of the Philadelphia broadcast media market, the nation's fourth-largest media market. Numerous New York City radio and television stations are also carried in the county. Three television stations are based in the county, WBPH-TV Channel 60, WLVT Channel 39 (the Lehigh Valley's PBS affiliate), and WFMZ Channel 69 (an independent television station).

The four major Philadelphia-based network stations serving Lehigh County are KYW-TV (the CBS affiliate), WCAU (the NBC affiliate), WPVI (the ABC affiliate), and WTXF (the Fox affiliate). The four major New York City-based network stations serving Lehigh County are WABC (the ABC affiliate), WCBS-TV (the CBS affiliate), WNBC (the NBC affiliate), and WNYW (the Fox affiliate). The four major Scranton-Wilkes-Barre-based network stations serving Lehigh County are WNEP-TV (the ABC affiliate), WBRE-TV (the NBC affiliate), WYOU (the CBS affiliate), and WOLF-TV (the Fox affiliate).

Telecommunications

From 1947 until 1994, Lehigh County was served exclusively by the 215 area code. With the county's growing population, area code 610 was also allocated to the county in 1994. Today, Lehigh County is covered largely by the 610 area code. An overlay area code, 484, was added to the 610 service area in 1999. A plan to introduce area code 835 as an additional overlay was rescinded in 2001. It has since been reintroduced and will begin use once 610 and 484 extensions are exhausted, possibly as early as September 2022.


Recreation

Dorney Park Steel Force Thunderhawk
Dorney Park & Wildwater Kingdom's Steel Force and Thunderhawk roller coasters in Allentown; Steel Force is the eighth-tallest steel roller coaster in the world with a first drop of 205 feet (62 m) and a top speed of 75 miles per hour (121 km/h).
Cokepark allentown
Coca-Cola Park in Allentown, home of the Lehigh Valley IronPigs, the Triple-A affiliate of the Philadelphia Phillies
Lehigh Parkway
Little Lehigh Creek in Allentown's Lehigh Parkway in September 2012
XMAS AT LEHIGH COUNTY ZOO
Christmas lights at Lehigh Valley Zoo in Schnecksville in December 2020

Amusement parks

Dorney Park & Wildwater Kingdom, one of the largest amusement and water parks on the U.S. East Coast, is located in South Whitehall Township in the county. It is open May through the end of October.

Fairs and festivals

The Great Allentown Fair, one of the nation's largest and longest ongoing city fairs, is held annually at Allentown Fairgrounds on North 17th Street in Allentown the end of August and beginning of September. Mayfair Festival of the Arts, an arts and festival fair, is held annually in May on the campus of Cedar Crest College in Allentown.

Golf

Lehigh County is home to multiple golf courses, including Brookside Country Club in Macungie, Lehigh Country Club on Cedar Crest Boulevard in Allentown, Olde Homestead Golf Club in New Tripoli, Saucon Valley Country Club in Upper Saucon Township, Shepherd Hills Golf Club in Wescosville, and Wedgewood Golf Course in Coopersburg.

Museums and history

The county has several museums, including Allentown Art Museum, America on Wheels, Da Vinci Science Center, George Taylor House, Lehigh County Historical Society at Trout Hall, Museum of Indian Culture, The 1803 House, and others.

Parks and zoo

Lehigh County also has 25 acres (100,000 m2) of public parks, including:

Communities

2007 - Nineteenth Street Theatre District
Young people gather on 19th Street in Allentown's West End in July 2007
Emmaus Theater 4th Street Lehigh Co PA
The historic Emmaus Theatre on South Fourth Street in Emmaus in October 2012
Bear-creek-lodge
Bear Creek Mountain Resort in Longswamp Township in January 2012
Lynn Township farm
A farm in Lynn Township in the northwest corner of Lehigh County in February 2008

Under Pennsylvania law, there are four types of incorporated municipalities: cities, boroughs, townships, and, in only one case, towns. The following cities, boroughs, and townships are located in Lehigh County:

Cities

Boroughs

Townships

  • Hanover Township
  • Heidelberg Township
  • Lower Macungie Township
  • Lower Milford Township
  • Lowhill Township
  • Lynn Township
  • North Whitehall Township
  • Salisbury Township
  • South Whitehall Township
  • Upper Macungie Township
  • Upper Milford Township
  • Upper Saucon Township
  • Washington Township
  • Weisenberg Township
  • Whitehall Township

Census-designated places

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.

Unincorporated communities

Population ranking

Lehigh County's largest cities, townships, boroughs, and other communities, based on the 2020 census, include:

county seat

Rank City/Town/etc. Municipal type Population (2020 Census)
1 Allentown City 125,845
2 Bethlehem (mostly in Northampton County) City 74,982
4 Emmaus Borough 11,652
5 Ancient Oaks CDP 6,995
6 Catasauqua Borough 6,518
7 Wescosville CDP 6,039
8 Fountain Hill Borough 4,878
9 Dorneyville CDP 4,406
10 Slatington Borough 4,232
11 Breinigsville CDP 4,138
13 Coplay Borough 3,192
14 Macungie Borough 3,074
15 Schnecksville CDP 2,935
17 Coopersburg Borough 2,386
18 Alburtis Borough 2,361
19 Cetronia CDP 2,115
20 Trexlertown CDP 1,988
22 Laurys Station CDP 1,243
24 DeSales University CDP 953
25 New Tripoli CDP 898
26 Slatedale CDP 455

Notable people

Since its founding in 1812, Lehigh County has been the birthplace or home to several notable Americans, including:

See also

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