What is the population of Williamstown?

The population of Williamstown, PA is 1,386.

Where is Williamstown located?

Williamstown, PA is located at latitude 39.9792400 and longitude -80.0408900. It is in United States.

What is the area of Williamstown?

The area of Williamstown, PA is 0.671347 km².

What is the elevation of Williamstown?

Williamstown, PA has an elevation of 256 meters (840 feet) above sea level.

What time zone is Williamstown in?

Williamstown, PA is in the America/New_York time zone.

What state is Williamstown in?

Williamstown is in the state of Pennsylvania, United States.

What county is Williamstown, PA in?

Williamstown is in Washington County, Pennsylvania.

How has the population of Williamstown changed?

The population of Williamstown, PA has decreased from 1,387 (2010) to 1,386 (2020), a change of -0.1%.

Williamstown, Pennsylvania

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

About

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 157 years ago in 1868.

Williamstown locator map — Location of Williamstown on Pennsylvania map.

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
Latitude & Longitude	39.9792,-80.0409
Altitude	866 feet / 264 meters
Establishment	January 01, 1869 (157 years ago)
Time Zone	America/New_York
Local time	11:07:02 (19th April 2026)
Density	2,065 Pop. per km² as of 2020
Population growth	-0.07% (2010-2020)
Weather	53℉ Rain Showers Likely 7-days weather

Dauphin County Pennsylvania incorporated and unincorporated areas Williamstown highlighted locator map image

Geography

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

Williamstown map

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Weather

53°F

Rain Showers Likely

8 to 14 mph NW Sunday

Rain showers likely. Partly sunny, with a high near 53. Northwest wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New...

7-Day Forecast

Official website of Williamstown

Official Website

Demographics

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, .

More notable people

Nearby Schools and Colleges

Schools and campuses linked to Williamstown, PA. Select a name to open its map and contact details.

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

Nearby Transit Stations (9)

Rail and bus stations connected to Williamstown, PA. Select a station to open its map and address details.

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

Nearby Post Offices

Closest post offices linked to Williamstown.

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

Other places with the same name (6)

Williamstown, New Jersey town in Massachusetts with a population of 15,567 people.
Williamstown, Massachusetts town in Massachusetts with a population of 7,631 people.
Williamstown, Kentucky city in Kentucky with a population of 3,939 people.
Williamstown, Vermont town in Orange County, Vermont, United States with a population of 3,530 people.
Williamstown, West Virginia city in Wood County, West Virginia, United States of America with a population of 2,860 people.
Williamstown, New York human settlement in Oswego County, New York, United States of America with a population of 1,241 people.

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