Lehigh County , Pennsylvania

Lehigh County: County in Pennsylvania, United States of America

Lehigh County locator map
Location of Lehigh County on Pennsylvania map.


Lehigh County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 349,497 and a population density of 387 people per km². After 9 years in 2019 county had an estimated population of 369,318 inhabitants. Its county seat is Allentown. The county was created 209 years ago in 1812.


Lehigh County is located at 40°36'46"N 75°35'33"W (40.6127100, -75.5923700). It has 5 neighbors: Berks County, Bucks County, Montgomery County, Northampton County and Schuylkill County.

2011 - Old Lehigh County Courthouse image
2011 - Old Lehigh County Courthouse

The largest city of Lehigh County is Allentown with a population of 121,442. Other cities include, Whitehall Township population 24,896, Fullerton population 14,925, Emmaus population 11,467 and Catasauqua population 6,599. See all Lehigh County cities & populated places.

2011 - Old Lehigh County Courthouse image

Lehigh County map

Lehigh County Quick Facts

Population : 369,318 (2019)
Country : United States of America
State : Pennsylvania (United States)
Area : 902 km2
Water as percent of area : 0.9%
Land as percent of area : 99.1%
Named for : Lehigh River
Altitude : 541 feet / 165 meters
Capital : Allentown
Establishment : March 03, 1812
Time Zone : America/New_York
Local time : 06:52:53 (4th August 2021)
Density : 409 Pop. per km² as of 2019
Population growth : 5.37% (2010-2019)

Lehigh County has 5 neighbours.


The population of Lehigh County increased by 5.37% in 9 years.

Year Population % Change Method
2010 349,497 - census
2011 353,436 1.11% estimation process
2012 354,759 0.37% estimation process
2013 355,341 0.16% estimation process
2014 357,636 0.64% estimation process
2015 359,710 0.58% estimation process
2016 362,298 0.71% estimation process
2017 365,577 0.9% estimation process
2018 368,359 0.76% estimation process
2019 369,318 0.26% estimation process

Comitatul Lehigh, Comte de Lehigh, Comté de Lehigh, Condado de Lehigh, Condado han Lehigh, Contae Lehigh, Contea di Lehigh, Hrabstwo Lehigh, Konteth Lehigh, Lechaa Kaundi, Lehay srjan, Lehigh, Lehigh Comitatus, Lehigh Kun, Lehigh Kūn, Lehigh konderria, Lehigh megye, Ligaj, Likhaj, Okrug Likhaj, Quan Lehigh, Quận Lehigh, leha'i ka'unti, li ha yi xian, rihai jun, Лихай, Лігай, Округ Лихај, Լեհայ շրջան, شهرستان له‌های، پنسیلوانیا, لی ہائی کاؤنٹی, لیہائی کاؤنٹی، پنسلوانیا, مقاطعة ليهاي, লেহাই কাউন্টি, リーハイ郡, 利哈伊縣

People born in Lehigh County (7)

People born in Lehigh County, including politician Constantine Jacob Erdman, mathematician George Abram Miller, Recipient of the Purple Heart medal Forrest Guth, you can see a list of people who born in Lehigh County.

Lehigh County Populated Places (more)

Cities, Towns, Neighborhoods & Other Populated Places in Lehigh County.

City Name Population Title
Allentown 121,442 County seat city in Lehigh County, Pennsylvania, USA
Whitehall Township 24,896 Township in Lehigh County, Pennsylvania
Fullerton 14,925
Emmaus 11,467 Borough in Lehigh County, Pennsylvania
Ancient Oaks 6,661 Census designated place
Catasauqua 6,599 Borough of Pennsylvania
Wescosville 5,872
Weisenberg 5,276 Township in Lehigh County, Pennsylvania
Fountain Hill 4,699 City in Ashley County, Arkansas, United States of America
Dorneyville 4,406
Slatington 4,307 Borough of Pennsylvania
Breinigsville 4,138
Hokendauqua 3,378 Census designated place in Whitehall Township, Lehigh County, Pennsylvania
Coplay 3,214 Borough of Pennsylvania
Macungie 3,178 Borough of Pennsylvania
Schnecksville 2,935 Census designated place

Pennsylvania Other Counties (more counties)

County Name Population Title
Pennsylvania 12,801,989 State in the northeastern United States
Philadelphia County 1,584,064 County in Pennsylvania, United States
Philadelphia 1,584,064 Largest city in Pennsylvania, United States
Allegheny County 1,216,045 County in the southwestern part of the U.
Montgomery County 830,915 County in Pennsylvania, United States
Bucks County 628,270 County in Pennsylvania, United States
Delaware County 566,747 County in Pennsylvania, United States
Lancaster County 545,724 County in Pennsylvania, United States
Chester County 524,989 County in Pennsylvania, United States
York County 449,058 County in Maine, United States
Berks County 421,164 County in Pennsylvania, United States
Croydon 385,346 London borough in South London
Westmoreland County 348,899 County in Pennsylvania, United States
Luzerne County 317,417 County in Pennsylvania, United States
Northampton County 305,285 County in Pennsylvania, United States
Pittsburgh 300,286 County seat in Allegheny County, Pennsylvania, United States

Next page