Pennsylvania

Mifflin

46,143
2020 population
1790
first census record
24
census records

About Mifflin

Mifflin, Pennsylvania, first appears in the United States federal census in 1790, when it recorded a population of 7,562. At the most recent census, in 2020, its population stood at 46,143.

Its recorded population peaked at 46,908 in 1980, and has since declined by roughly 2 percent.

On the ground today, 4 documented military engagements have been recorded within the county, among them Battle of Juniata Crossings, Raid on Pennsylvania Path Valley (1756), Raid on Fort Granville PA 1756, and 10 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202046,143
201046,682
200046,486
199046,197
198046,908
197045,268
196044,348
195043,691
194042,993
193040,335
192031,439
191027,785
190023,160
189019,996
188019,577
187017,508
186016,340
185014,980
184013,092
183021,690
182016,618
181012,132
180013,609
17907,562
Source

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

Battles & engagements in Mifflin

Military engagements that took place in Mifflin, Pennsylvania.

Battle of Juniata Crossings
1756
Raid on Pennsylvania Path Valley (1756)
1756
Raid on Fort Granville PA 1756
1756
Raid on Fort Granville 1756
1756

Historic places in Mifflin

National Register of Historic Places listings in Mifflin, Pennsylvania.

McCoy House
Lewistown
Wollner Building
Lewistown
Lewistown Armory
Lewistown
Embassy Theatre
Lewistown
Pennsylvania Main Line Canal, Juniata Division, Canal Section
Granville Township
Mifflin County Courthouse
Lewistown
Montgomery Ward Building
Lewistown
Old Stone Arch Bridge
Lewistown
Browse all Pennsylvaniahistoric sites ›

Other counties in Pennsylvania

Explore census history and historic records for more Pennsylvania counties.

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Everything a full report reveals about Mifflin County, Pennsylvania

This page charts the census history of Mifflin 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 Mifflin

When does Mifflin first appear in the US census?
Mifflin, Pennsylvania first appears in the federal census in 1790, with a recorded population of 7,562.
What is the population of Mifflin?
At the most recent federal census (2020), Mifflin had a recorded population of 46,143.
When did Mifflin's population peak?
Mifflin's recorded population peaked at 46,908 in 1980.
Were any battles fought in Mifflin?
4 documented military engagements took place in Mifflin, including Battle of Juniata Crossings, Raid on Pennsylvania Path Valley (1756), Raid on Fort Granville PA 1756.
How many historic places are in Mifflin?
10 sites are listed on the National Register of Historic Places in Mifflin, Pennsylvania.
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