Founding year: Wikipedia. First post office: 1812.The full story ↓
History grade
What drives Orrington’s History grade
On its age, its old homes and the National Register, Orrington is more historic than 71% of U.S. towns, #98 of 143 in Maine. Its age holds the grade up; its National Register listings pull it down.
B+
HistoryA character grade: shown, never part of Orrington’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 Orrington’s 2.6 sits below most of its state (21% of Maine towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from B to A−. The pre-1940 share is a Census survey estimate (±7.9 points). Two sources give 1788.
Founding year: Wikipedia (other dates in Quick answers). 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 Orrington’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Orrington was originally part of Condustiegg or Kenduskeag Plantation, which also included the present-day cities of Bangor and Brewer. Orrington was incorporated as a town in 1788 with its major village at Brewer, then called "New Worcester". Bangor incorporated three years later in 1791. Brewer broke away from Orrington in 1812 to form a separate town.
The name "Orrington" reportedly resulted from a spelling mistake. The settlers intended to name it "Orangetown" after Orangetown, Maryland, but it was written on the record-books in distant Massachusetts, of which Maine was then a territory, as "Orrington". "Orring" was a reasonable phonetic rendering of "orange" before the standardization of English spelling.
In 1788, according to Wikipedia’s history of the town. Orrington’s post office opened in 1812, and the first U.S. census counted 477 people here in 1790.
How does Orrington rank for history?
Orrington is more historic than 71% of U.S. towns, #98 of 143 in Maine. 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 Orrington?
One place: the Enterprise Grange, No. 173 (listed 2008).
How old are the homes in Orrington?
23% of Orrington’s homes were built before 1940 (Census estimate, ±7.9 points), against a typical 19% for a Maine town; the median home was built in 1989.
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 (18), the National Register of Historic Places (1), Wikipedia, 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.