Williamstown, Washington County, Pennsylvania

Williamstown: Borough in northeastern Dauphin County, Pennsylvania, United States


Williamstown is a city located in the county of Washington in the U.S. state of Pennsylvania. Its population at the 2010 census was 1,387 and a population density of 2,066 people per km². After 10 years in 2020 city had an estimated population of 1,386 inhabitants.

The city was created 154 years ago in 1868.

Quick Facts about Williamstown

Population : 1,386 (2020)
Country : United States of America
State : Pennsylvania (United States)
County : Washington County
Postal code : 17098
Area : 0.67 km2
Altitude : 866 feet / 264 meters
Establishment : January 01, 1869 (154 years ago)
Time Zone : America/New_York
Local time : 20:33:46 (29th January 2023)
Density : 2,065 Pop. per km² as of 2020
Population growth : -0.07% (2010-2020)
Williamstown locator map
Location of Williamstown on Pennsylvania map.
Dauphin County Pennsylvania incorporated and unincorporated areas Williamstown highlighted locator map image
Dauphin County Pennsylvania incorporated and unincorporated areas Williamstown highlighted
Dauphin County Pennsylvania incorporated and unincorporated areas Williamstown highlighted locator map image


Williamstown is located at 39°58'45"N 80°2'27"W (39.9792400, -80.0408900).

Williamstown map


According to census records, the population of Williamstown decreased by 0.07% in 10 years.

Year Population % Change Method
2010 1,387 - census
2011 1,390 0.22% estimation process
2012 1,388 -0.14% estimation process
2013 1,387 -0.07% estimation process
2014 1,385 -0.14% estimation process
2015 1,389 0.29% estimation process
2016 1,387 -0.14% estimation process
2017 1,387 0% estimation process
2018 1,388 0.07% estimation process
2019 1,386 -0.14% estimation process
2020 1,386 0% estimation process

Williamstown zip code is 17098. County name: Dauphin, County fips: 42043

People born in Williamstown (3)

People born in Williamstown, including football player Gary Collins, mathematician Arthur Byron Coble, ice hockey executive Jay Feaster, .


Schools in Williamstown

College & universities near Williamstown, PA

Code Name City ZIP
260363 Greene County Career and Technology Center Waynesburg (PA) 15370-8281

Stations (9)

Amtrak & bus stations near Williamstown, PA

Code Name Address Type
COV Connellsville station North Water Street and West Peach Street RAIL
PGH Union Station 1100 Liberty Avenue RAIL
GNB Greensburg Harrison Ave. and Seton Hill Dr. RAIL
LAB Latrobe station 329 McKinley Ave RAIL
GTV Grantsville, MD 3000 Chestnut Ridge Road BUS

Post offices near Williamstown

Post Office Name City ZIP
Clarksvill Post Office Clarksville (PA) 15322

Other places with the same name (7)

Other cities in Washington County

Cities, Towns, Neighborhoods & Other Populated Places in Washington County , PA. (more)

City Name Population Title
McMurray 66,573 Census-designated place in Peters Township, Washington County, Pennsylvania (USA)
South Strabane 9,449 Township in Washington County, Pennsylvania
Canonsburg 8,751 Borough in Washington County, Pennsylvania
Maple Glen 7,635 City in Pennsylvania, United States of America
Donora 4,546 Borough in Washington County, Pennsylvania
Monongahela 4,090 City of Pennsylvania
Charleroi 3,887 Borough in Pennsylvania, United States
Wolfdale 2,888 Census designated place
Gastonville 2,818 Census designated place
McGovern 2,742 Census designated place
Bentleyville 2,479 Village in Cuyahoga County, Ohio, United States of America
Hickory 2,373 Census-designated place in Mount Pleasant Township, Washington County, Pennsylvania, United States
Lowhill 2,360 Township in Lehigh County, Pennsylvania
New Eagle 2,079 Borough of Pennsylvania
Buffalo 2,011 Township in northeastern Perry County, Pennsylvania
East Washington 1,801 Borough of Pennsylvania

Distance to Other Cities

Williamstown distances to largest Pennsylvania cities