What is the population of Watertown?

The population of Watertown, OH is 1,521.

Where is Watertown located?

Watertown, OH is located at latitude 39.4659100 and longitude -81.6331800. It is in United States.

What is the area of Watertown?

The area of Watertown, OH is 36.5 km².

What is the elevation of Watertown?

Watertown, OH has an elevation of 216 meters (709 feet) above sea level.

What time zone is Watertown in?

Watertown, OH is in the America/New_York time zone.

What state is Watertown in?

Watertown is in the state of Ohio, United States.

What county is Watertown, OH in?

Watertown is in Washington County, Ohio.

How has the population of Watertown changed?

The population of Watertown, OH has decreased from 1,579 (2010) to 1,521 (2020), a change of -3.7%.

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Watertown, Ohio

Watertown: township in Washington County, Ohio

About

Watertown is a township located in the county of Washington in the U.S. state of Ohio. Its population at the 2010 census was 1,579 and a population density of 43 people per km². After 10 years in 2020 city had an estimated population of 1,521 inhabitants.

Watertown locator map — Location of Watertown on Ohio map.

Quick Facts about Watertown

Population	1,521 (2020)
Country	United States of America
State	Ohio (United States)
County	Washington County
Area	36.5 km²
Latitude & Longitude	39.4659,-81.6332
Altitude	764 feet / 233 meters
Time Zone	America/New_York
Local time	21:32:39 (18th April 2026)
Postal code	45787
Density	42 Pop. per km² as of 2020
Population growth	-3.81% (2010-2020)
Weather	84℉ Showers And Thunderstorms Likely 7-days weather

Harra Covered Bridge image

Geography

Watertown is located at 39°27'57"N 81°37'59"W (39.4659100, -81.6331800).

Watertown map

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Weather

84°F

Showers And Thunderstorms Likely

3 to 13 mph S Saturday

A chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 84. Chance of precipitation is 60%...

7-Day Forecast

Demographics

According to census records, the population of Watertown decreased by 3.81% in 10 years.

Year	Population	% Change	Method
2010	1,579	-	census
2011	1,576	-0.19%	estimation process
2012	1,570	-0.38%	estimation process
2013	1,566	-0.26%	estimation process
2014	1,562	-0.26%	estimation process
2015	1,559	-0.19%	estimation process
2016	1,550	-0.58%	estimation process
2017	1,541	-0.58%	estimation process
2018	1,533	-0.52%	estimation process
2019	1,530	-0.2%	estimation process
2020	1,521	-0.59%	estimation process

Watertown zip code is 45787. County name: Washington, County fips: 39167

Nearby Schools and Colleges

Schools and campuses linked to Watertown, OH. Select a name to open its map and contact details.

Code	Name	City	ZIP
418250	Washington County Career Center-Adult Technical Training	Marietta (OH)	45750

Nearby Post Offices

Closest post offices linked to Watertown.

Post Office Name	City	ZIP
Waterford Post Office	Waterford (OH)	45786

Other places with the same name (9)

Watertown, Massachusetts city in Middlesex County, Massachusetts, United States with a population of 36,125 people.
Watertown, South Dakota city in and county seat of Codington County, South Dakota, United States with a population of 22,303 people.
Watertown, Connecticut town in Litchfield County, Connecticut, United States with a population of 21,517 people.
Watertown, New York town in Jefferson County, New York with a population of 4,426 people.
Watertown, Michigan township in Sanilac County, Michigan, United States with a population of 2,060 people.
Watertown, Wisconsin city in Jefferson County, New York with a population of 2,039 people.
Watertown, Tennessee city in Wilson County, Tennessee, United States with a population of 1,536 people.
Watertown, Tennessee city in Wilson County, Tennessee, United States with a population of 1,517 people.
Watertown, Minnesota township in Carver County, Minnesota with a population of 1,189 people.

Other cities in Washington County

Cities, towns, neighborhoods & other populated places in Washington County , OH.

City Name	Population	Title
Marietta	4,422	City in and county seat of Washington County, Ohio
Belpre	3,759	City in Washington County, Ohio
Waterford	3,642	Township in Washington County, Ohio
Devola	2,652	Census-designated place in Washington County, Ohio
Barlow	2,520	Town
Dunham	2,505	Township in Washington County, Ohio
Newport	1,909	City in Washington County, Minnesota, United States
Beverly	1,336	Town
Bloomfield	1,235	Township in Trumbull County, Ohio
New Matamoras	1,135	City in Washington County, Ohio, United States of America
Lowell	529	Village in Washington County, Ohio, United States
Ludlow	315	Township of Washington County, Ohio, United States
Macksburg	181	Human settlement in Washington County, Ohio, United States of America
Lower Salem	82	Human settlement in Washington County, Ohio, United States of America

Distance to Other Cities

Watertown distances to largest Ohio cities