Pennsylvania

Montgomery

856,553
2020 population
1790
first census record
24
census records

About Montgomery

Montgomery, Pennsylvania, first appears in the United States federal census in 1790, when it recorded a population of 22,929. At the most recent census, in 2020, its population stood at 856,553.

The county's recorded population has risen across the decades to its highest level in 2020.

On the ground today, 10 documented military engagements have been recorded within the county, among them Delaware Valley Late Woodland Conflict, Battle of Matson's Ford, Action at Valley Forge (various skirmishes), and 156 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
2020856,553
2010799,874
2000750,097
1990678,111
1980643,621
1970623,799
1960516,682
1950353,068
1940289,247
1930265,804
1920199,310
1910169,590
1900138,995
1890123,290
188096,494
187081,612
186070,500
185058,291
184047,241
183039,406
182035,793
181029,703
180024,150
179022,929
Source

Population data from the United States decennial census, U.S. Census Bureau (public domain).

Battles & engagements in Montgomery

Military engagements that took place in Montgomery, Pennsylvania.

Delaware Valley Late Woodland Conflict
1200
Battle of Matson's Ford
1777
Action at Valley Forge (various skirmishes)
1777
Skirmish at Whitemarsh
1777
Battle of Whitemarsh
1777
Action at Valley Forge Skirmishes (winter 1777–78)
1778
Battle of Barren Hill (Pennsylvania)
1778
Fries's Rebellion (Pennsylvania German Tax Revolt)
1799
Fries's Rebellion (Pennsylvania 1799)
1799
Fries' Rebellion — Quaker Resistance to Tax 1799
1799

Historic places in Montgomery

National Register of Historic Places listings in Montgomery, Pennsylvania.

West Norristown Historic District
West Norristown
Evansburg Historic District
Evansburg
Woodmont
Gladwyne
Hanging Rock
Upper Marion Township
Gwynedd Hall
Ambler
Reading Railroad Pottstown Station
Pottstown
Farmar Mill
Fort Washington
Plymouth Friends Meetinghouse
Plymouth Meeting
Plymouth Meeting Historic District
Plymouth Meeting
Horsham-Montgomery Bridge
Fort Washington
Washington Memorial Chapel
Upper Merion Township
Glencairn
Bryn Athyn
Rittenhouse, David, Junior High School
Norristown
Graeme Park
Horsham
Camptown Historic District
LaMott
Hope Lodge
Fort Washington
Kennedy Mansion
Port Kennedy
General Wayne Inn
Merion
Seville Theatre
Lower Merion Township
Cold Point Historic District
Norristown
Wentz, Peter, Homestead
Worcester
Bryn Mawr Hotel
Bryn Mawr
Strawbridge and Clothier Store
Jenkintown
Augustus Lutheran Church
Trappe
Browse all Pennsylvaniahistoric sites ›

Other counties in Pennsylvania

Explore census history and historic records for more Pennsylvania counties.

NorthumberlandPerryPhiladelphiaPikePotterSchuylkillSnyderSomersetSullivanSusquehannaTiogaUnionVenangoWarrenWashingtonWayneWestmorelandWyomingYorkAdams
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Everything a full report reveals about Montgomery County, Pennsylvania

This page charts the census history of Montgomery County, Pennsylvania. A full Aubrey report for an address here pulls together everything the historical record holds about the ground, from the earliest settlement to the twentieth century:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Frequently asked about Montgomery

When does Montgomery first appear in the US census?
Montgomery, Pennsylvania first appears in the federal census in 1790, with a recorded population of 22,929.
What is the population of Montgomery?
At the most recent federal census (2020), Montgomery had a recorded population of 856,553.
Were any battles fought in Montgomery?
10 documented military engagements took place in Montgomery, including Delaware Valley Late Woodland Conflict, Battle of Matson's Ford, Action at Valley Forge (various skirmishes).
How many historic places are in Montgomery?
156 sites are listed on the National Register of Historic Places in Montgomery, Pennsylvania.
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