Townapedia
Edward G. Acheson House
Edward G. Acheson House · Nyttend, Public domain
Monongahela Cemetery chapel
Monongahela Cemetery chapel · Nyttend, Public domain
PA 88-837 nb, 136 wb in Monongahela (1), May 2024
PA 88-837 nb, 136 wb in Monongahela (1), May 2024 · Mr. Matté (if there is an issue with this image, contact..., CC BY-SA 4.0
Monongahela City Hall, PA, May 2024
Monongahela City Hall, PA, May 2024 · Mr. Matté (if there is an issue with this image, contact..., CC BY-SA 4.0
PA 837 nb in Black Diamond, Monongahela, May 2024
PA 837 nb in Black Diamond, Monongahela, May 2024 · Mr. Matté (if there is an issue with this image, contact..., CC BY-SA 4.0
PA 88-837 nb, 136 wb in Monongahela (2), May 2024
PA 88-837 nb, 136 wb in Monongahela (2), May 2024 · Mr. Matté (if there is an issue with this image, contact..., CC BY-SA 4.0

Monongahela, Pennsylvania

Monongahela is a city of 4,109 people in Washington County, Pennsylvania, founded in 1770.

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Population4,109 -0.7% since 2019
Elevation755 ft 230 m
Founded1770
Land area1.9 sq mi
ZIP code15063
Nearest airportAllegheny County Airport (AGC) 11 mi

Why visit Monongahela

Townapedia lists 4 museums and landmarks, 6 parks and trails, 19 places to eat and 3 attractions in and around town.

Highlights include Charleroi-Monessen Bridge, Eldora Park, Cement City Historic District and David Longwell House.

July is the warmest month, with average highs of 85°F; January lows average 21°F.

About Monongahela

Monongahela, referred to locally as Mon City, is a third-class city in Washington County, Pennsylvania, United States. The population was 4,149 at the 2020 census. It is part of the Pittsburgh metropolitan area, about 17 miles (27 km) south of Pittsburgh proper.

From the Wikipedia article Monongahela, Pennsylvania (this version), under CC BY-SA 4.0.

Things to do3

Charleroi-Monessen Bridge

Bridge · National Register of Historic Places · 2.9 mi

Bridge in United States of America

Open in Google Maps · Wikipedia

Eldora Park

Monument and historic site · 1.9 mi

Amusement park in Washington, Pennsylvania, USA

Open in Google Maps · Wikipedia

Monongahela City Bridge

Bridge · 0.6 mi

Bridge in United States of America

Open in Google Maps · Wikipedia

Museums and landmarks4

Cement City Historic District

Monument and historic site · National Register of Historic Places · 3.3 mi

Historic district in Pennsylvania, United States

Open in Google Maps · Wikipedia

David Longwell House

Monument and historic site · National Register of Historic Places · 1.1 mi

Historic house in Pennsylvania, United States

Open in Google Maps · Wikipedia

Edward G. Acheson House

Monument and historic site · National Register of Historic Places · 1.1 mi

United States historic place

Open in Google Maps · Wikipedia

Monongahela Cemetery

Monument and historic site · National Register of Historic Places

Cemetery in Monongahela, Washington County, Pennsylvania, United States

Open in Google Maps · Wikipedia

Parks, trails and playgrounds6

Aquatorium Beach Left Side

Beach · 0.9 mi

Open in Google Maps

Aquatorium Beach Right Side

Beach · 0.8 mi

Open in Google Maps

Chess Park

Park · 1.0 mi

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Monongahela Aquatorium

Park · 0.8 mi

Open in Google Maps

Monongahela Valley Country Club

Golf course · 0.6 mi

Open in Google Maps

Mounds Park

Park · 0.7 mi

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Restaurants and cafes19

Eat'n Park

Diner · American · 1.4 mi

1250 West Main Street, Monongahela

Mo-Su 07:00-23:00

Open in Google Maps · +1-724-258-4654

Ripepi Winery and Vineyard

Brewery and winery · 0.8 mi

93 Van Voorhis Lane

Th-Sa 11:00-18:00; Su 12:00-17:00

Open in Google Maps · +1 724-292-8351

Hill's Restruant

Restaurant · Italian · 1.5 mi

Open in Google Maps · +1 724 258 5422

Dettore's Pizza

Restaurant · 1.2 mi

Open in Google Maps · +1 724 258 3306

Great Wall

Restaurant · Chinese · 0.7 mi

Open in Google Maps

Italian Village Pizza

Restaurant · Pizza · 0.7 mi

Open in Google Maps

Lenzi's Italian Restaurant

Restaurant · Italian · 0.5 mi

Open in Google Maps

Andy Sports Bar & Restaurant

Bar and pub · 1.3 mi

Open in Google Maps

Angelo's II

Restaurant · 0.8 mi

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Di's Hometown Deli

Restaurant · 0.7 mi

Open in Google Maps

Hog Father's Old-Fashioned BBQ

Restaurant · 0.5 mi

Open in Google Maps

Jim's Bar

Bar and pub · 0.7 mi

Open in Google Maps

7 more on the map.

History

Monongahela was founded in 1769 on a tract of land near the confluence of Pigeon Creek and the Monongahela River. It is the oldest settlement in the Monongahela River Valley and most likely the oldest in Washington County. The word Monongahela is Native American in origin, meaning "falling banks". The Monongahela tribe was also indigenous to the area prior to the settlement of the city.

The original tract of land was actually owned by three different men, who named their land areas Eden, Paradise, and Gloucester. Joseph Parkison, who operated a ferry on the west bank of the Monongahela River, is recognized as the founder of the city. Parkison built the town's first post office, and in 1782 the town was officially recognized as Parkison's Ferry. Adam Wickerham took claim to 130 acres (0.53 km2) on the Parkison Ferry tract on July 1, 1788. On this tract he laid out Georgetown in 1807. Georgetown was made part of Williamsport by Wickerham on February 23, 1816. In 1833, the first borough officers were elected for Williamsport. On April 1, 1837, Williamsport was given the name Monongahela City and in 1893 shortened to Monongahela.

The city contains a number of streets which are named in honor of prominent Civil War figures including: Lincoln, Grant, Sherman, Stanton, Meade, Hancock, Thomas, Howard, Geary, and Sheridan.

From the History section of Monongahela, Pennsylvania on Wikipedia, under CC BY-SA 4.0.

Churches and places of worship14

Shopping7

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Gas and EV charging2

Schools, colleges and libraries20

Healthcare7

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Map of Monongahela

82 places. The map loads OpenStreetMap tiles when you open it.

Climate by month

20°40°60°80°January: 3.2 in of rainFebruary: 2.8 in of rainMarch: 3.4 in of rainApril: 3.5 in of rainMay: 3.9 in of rainJune: 4.3 in of rainJuly: 4.0 in of rainAugust: 3.5 in of rainSeptember: 3.3 in of rainOctober: 2.9 in of rainNovember: 2.9 in of rainDecember: 3.3 in of rainJanuary: 39°FFebruary: 42°FMarch: 51°FApril: 64°FMay: 74°FJune: 81°FJuly: 85°FAugust: 84°FSeptember: 78°FOctober: 66°FNovember: 54°FDecember: 43°FJanuary: 21°FFebruary: 22°FMarch: 29°FApril: 39°FMay: 51°FJune: 60°FJuly: 64°FAugust: 62°FSeptember: 56°FOctober: 44°FNovember: 34°FDecember: 27°FJFMAMJJASOND
Average high Average low Rain
Monthly table
MonthHighLowRainSnow
Jan39°F21°F3.2 in3.8 in
Feb42°F22°F2.8 in2.7 in
Mar51°F29°F3.4 in2.1 in
Apr64°F39°F3.5 in0.0 in
May74°F51°F3.9 in0.0 in
Jun81°F60°F4.3 in0.0 in
Jul85°F64°F4.0 in0.0 in
Aug84°F62°F3.5 in0.0 in
Sep78°F56°F3.3 in0.0 in
Oct66°F44°F2.9 in0.0 in
Nov54°F34°F2.9 in0.2 in
Dec43°F27°F3.3 in1.5 in

U.S. Climate Normals 1991-2020 for Charleroi Lock 4 (3 mi away), NOAA NCEI.

People and cost of living

$59,861median household income
$114,300median home value
$818median monthly rent
43.0median age
22.8%of adults have a bachelor's degree or higher
69.1%of homes are owner-occupied
29.0 minaverage commute
Age of residents
Under 1816%18 to 3424%35 to 6439%65 and over22%

American Community Survey 5-year estimates, 2020-2024, U.S. Census Bureau. Estimates have margins of error, larger for small towns.

Disaster history

Washington County has had 7 federal disaster declarations since 2000, most often for hurricanes.

  • 2020-03-30: Covid-19 Pandemic (Biological)
  • 2020-03-13: Covid-19 (Biological)
  • 2012-10-29: Hurricane Sandy (Hurricane)
  • 2005-09-10: Hurricane Katrina (Hurricane)
  • 2004-09-19: Tropical Depression Ivan (Hurricane)
  • 2004-09-19: Severe Storms And Flooding Associated With Tropical Depression Frances (Severe Storm)

OpenFEMA disaster declarations summaries.

Getting there and nearby towns

Allegheny County Airport (AGC) is the nearest airport with scheduled flights listed in OpenStreetMap, 11 miles away.

Drive times are estimates from straight-line distance, not routes.

Reviews, tips and questions

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Sources and licences

Photo credits

Page built October 30, 2026. Spotted a mistake? Tell us or suggest a place.