Idaho

Franklin

14,194
2020 population
1920
first census record
11
census records

About Franklin

Franklin, Idaho, first appears in the United States federal census in 1920, when it recorded a population of 8,650. At the most recent census, in 2020, its population stood at 14,194.

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

On the ground today, 4 documented military engagements have been recorded within the county, among them Bear River Massacre, Battle of Bear River Massacre, Battle of Bear River (Idaho 1863), and 10 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202014,194
201012,786
200011,329
19909,232
19808,895
19707,373
19608,457
19509,867
194010,229
19309,379
19208,650
Source

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

Battles & engagements in Franklin

Military engagements that took place in Franklin, Idaho.

Bear River Massacre
1863
Battle of Bear River Massacre
1863
Battle of Bear River (Idaho 1863)
1863
Bear River Massacre (January 29, 1863)
1863

Historic places in Franklin

National Register of Historic Places listings in Franklin, Idaho.

Weston Canyon Rock Shelter
Weston
Oneida Stake Academy
Preston
Cowley, Matthias, House
Preston
Franklin County Courthouse
Preston
Bear River Battleground
Preston
US Post Office-Preston Main
Preston
Franklin City Hall
Franklin
Browse all Idahohistoric sites ›

Other counties in Idaho

Explore census history and historic records for more Idaho counties.

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Everything a full report reveals about Franklin County, Idaho

This page charts the census history of Franklin County, Idaho. 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 Franklin

When does Franklin first appear in the US census?
Franklin, Idaho first appears in the federal census in 1920, with a recorded population of 8,650.
What is the population of Franklin?
At the most recent federal census (2020), Franklin had a recorded population of 14,194.
Were any battles fought in Franklin?
4 documented military engagements took place in Franklin, including Bear River Massacre, Battle of Bear River Massacre, Battle of Bear River (Idaho 1863).
How many historic places are in Franklin?
10 sites are listed on the National Register of Historic Places in Franklin, Idaho.
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