Pennsylvania

Jefferson

44,492
2020 population
1810
first census record
22
census records

About Jefferson

Jefferson, Pennsylvania, first appears in the United States federal census in 1810, when it recorded a population of 161. At the most recent census, in 2020, its population stood at 44,492.

Its recorded population peaked at 63,090 in 1910, and has since declined by roughly 29 percent.

On the ground today, 15 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202044,492
201045,200
200045,932
199046,083
198048,303
197043,695
196046,792
195049,147
194054,090
193052,114
192062,104
191063,090
190059,113
189044,005
188027,935
187021,656
186018,270
185013,518
18407,253
18302,025
1820561
1810161
Source

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

Historic places in Jefferson

National Register of Historic Places listings in Jefferson, Pennsylvania.

Brookville Historic District
Brookville
Segers, Redferd, House
Snyder Township
Kurtz, T. M., House
Punxsutawney
Jefferson Theater
Punxsutawney
Herpel Brothers Foundry and Machine Shop
Reynoldsville
Taylor, Phillip, House
Brookville
Brockwayville Passenger Depot, Buffalo, Rochester and Pittsburgh Railroad
Brockway
Brookville Presbyterian Church and Manse
Brookville
Hall, Joseph E., House
Brookville
United States Post Office-Punxsutawney
Punxsutawney
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Other counties in Pennsylvania

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Everything a full report reveals about Jefferson County, Pennsylvania

This page charts the census history of Jefferson 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 Jefferson

When does Jefferson first appear in the US census?
Jefferson, Pennsylvania first appears in the federal census in 1810, with a recorded population of 161.
What is the population of Jefferson?
At the most recent federal census (2020), Jefferson had a recorded population of 44,492.
When did Jefferson's population peak?
Jefferson's recorded population peaked at 63,090 in 1910.
How many historic places are in Jefferson?
15 sites are listed on the National Register of Historic Places in Jefferson, Pennsylvania.
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