On its age, its old homes and the National Register, Sullivan is more historic than 65% of U.S. towns. Its share of homes from before 1940 holds the grade up; its National Register listings pull it down.
B+
HistoryA character grade: shown, never part of Sullivan’s overall grade.
Maine towns list more on the Register than most of the country (a typical Maine town has 15.9 per 10,000 residents, the U.S. 2.4), so Sullivan’s 8.0 sits near the middle of its state (37% of Maine towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±4.6 points).
Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →
What stands out about Sullivan’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Lost post offices, old corners and burying grounds
Sullivan had its own post office from 1794 to 1972. Another post office, East Sullivan, opened and closed inside today’s town.
Sullivan
1794–1972
West Sullivan
1848–today
East Sullivan
1849–1975
North Sullivan
1897–today
17901910today
Hamlets and corners on the map
East SullivanNorth SullivanSchoodicTunk LakeWest Sullivan
12cemeteries and burying grounds inside Sullivan
Birch TreeBlaisdellDoyleDyerGordonHallJohnsonSalterSimpsonSumnerUrannYork Hill
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
The story so far
Sullivan, in brief
Wikipedia doesn’t have a history of Sullivan yet. The photos, dates and memories neighbors add here are how it gets written.
Sullivan is a town in Hancock County, Maine, United States. The population was 1,219 at the 2020 census. The town was named for Daniel Sullivan, an early settler. Colloquially referred to as "Sully" or "the Sullivans"—like many Maine municipalities composed of villages with geographic designations of the town proper—the municipality was incorporated in 1789. Located in the Upper Schoodic Peninsula sub-region of Maine's Downeast Acadia region, the municipality has been known as "Waukeag", "New Bristol", and later Sullivan; and once included the nearby communities of Hancock, Sorrento, and what would later be (parts of Gouldsboro Point TWP, Tunk Lake TWP, the Schoodic Foothills, Hog Bay, and …
Its population held steady between the last two censuses: 1,236 in 2010, 1,219 in 2020.
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Sullivan, 1794 to 1975
Woven from the archive, old maps, post office records, the National Register and the people born here.
Sullivan is more historic than 65% of U.S. towns. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.
What is on the National Register in Sullivan?
One place: the Granite Store (listed 1974).
How old are the homes in Sullivan?
22% of Sullivan’s homes were built before 1940 (Census estimate, ±4.6 points), against a typical 19% for a Maine town; the median home was built in 1981.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021).
From Wikimedia Commons (4), the National Register of Historic Places (1), Wikidata and Wikipedia for famous people, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.