Maine

Sagadahoc

36,699
2020 population
1860
first census record
17
census records

About Sagadahoc

Sagadahoc, Maine, first appears in the United States federal census in 1860, when it recorded a population of 21,790. At the most recent census, in 2020, its population stood at 36,699.

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

On the ground today, 3 documented military engagements have been recorded within the county, among them Raid on Merry Meeting Bay 1722, Raid on Arrowsic Island 1722, Bath, Maine German U-boat Incident (1918), and 62 places are listed on the National Register of Historic Places.

Population by decade

Census YearPopulationChart
202036,699
201035,293
200035,214
199033,535
198028,795
197023,452
196022,793
195020,911
194019,123
193016,927
192023,021
191018,574
190020,330
189019,452
188019,272
187018,803
186021,790
Source

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

Battles & engagements in Sagadahoc

Military engagements that took place in Sagadahoc, Maine.

Raid on Merry Meeting Bay 1722
1722
Raid on Arrowsic Island 1722
1722
Bath, Maine German U-boat Incident (1918)
1918

Historic places in Sagadahoc

National Register of Historic Places listings in Sagadahoc, Maine.

Butterfield-Sampson House
Bowdoinham
U.S. Customhouse and Post Office
Bath
Merritt, Captain, House
Bath
Grey Havens Inn
Georgetown
Cold Spring Farm
Phippsburg
Percy and Small Shipyard
Bath
Wallace-Haskell Homestead
Phippsburg
Ingraham, Charles H., Cottage
Phippsburg
Topsham Fairgrounds Grandstand
Topsham
Doubling Point Light Station
Bath
Fiddler's Reach Fog Signal
Arrowsic
Hunter Site
Topsham
Trufant Historic District
Bath
Perkins Island Light Station
Georgetown
Kennebec River Light Station
Bath
Riggs-Zorach House
Georgetown
Riggs, Benjamin, House
Georgetown
Manley, Joseph and Susan, Summer Cottage
Small Point
Peacock Tavern
Richmond
Seguin Island Light Station
Georgetown
Purinton Family Farm
Topsham
Donnell, William T., House
Bath
Pejepscot Paper Company
Topsham
Carr, Robert P., House
Bowdoinham
Browse all Mainehistoric sites ›

Other counties in Maine

Explore census history and historic records for more Maine counties.

HancockKennebecKnoxLincolnOxfordPenobscotPiscataquisSomersetWaldoWashingtonYorkAndroscogginAroostookCumberlandFranklin
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Everything a full report reveals about Sagadahoc County, Maine

This page charts the census history of Sagadahoc County, Maine. 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 Sagadahoc

When does Sagadahoc first appear in the US census?
Sagadahoc, Maine first appears in the federal census in 1860, with a recorded population of 21,790.
What is the population of Sagadahoc?
At the most recent federal census (2020), Sagadahoc had a recorded population of 36,699.
Were any battles fought in Sagadahoc?
3 documented military engagements took place in Sagadahoc, including Raid on Merry Meeting Bay 1722, Raid on Arrowsic Island 1722, Bath, Maine German U-boat Incident (1918).
How many historic places are in Sagadahoc?
62 sites are listed on the National Register of Historic Places in Sagadahoc, Maine.
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