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B+History
History · Sebago

Sebago’s post office opened in 1829, and 17% of its homes were built before 1940

More historic than 73% of U.S. towns. What drives it

Its Register listings are the Fitch's General Store and House and the Dyke Mountain Annex. Below: 1 old photo or paper, maps from 1896 on, and the census since 1830.

1829first post office
2on the National Register
17%homes built before 1940
1old photo or paper
Add an old photoShare a memory
From Sebago’s archive · credits on each photo
Quick answers

How Sebago began

When was Sebago founded?

1829

The Sebago post office opened in 1829, the earliest record of the town by name. Four smaller post offices, North Sebago (1884), Convene (1892) and Hillside (1897), opened inside today’s town and later closed.

First census: 586 in 18302020 census: 1,911197 years

How historic is Sebago?

B+

More historic than 73% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Sebago post office (Blevins & Helbock, CC0).The full story ↓
History grade

What drives Sebago’s History grade

On its age, its old homes and the National Register, Sebago is more historic than 73% of U.S. towns. All 3 inputs are above most U.S. towns; its age ranks highest and its National Register listings lowest.

B+
HistoryA character grade: shown, never part of Sebago’s overall grade.
Founding era1829, from the first post office: founded 1776–1849, an older era than 75% of U.S. townsA−Homes built before 194017.4% of homes (±5.3) · typical ME town 19.1% · U.S. 8.4%BNational Register2 listings, 9.6 per 10,000 residents · typical ME town 15.9 · U.S. 2.4B−
All U.S. towns we grade (21,289)Ahead of 73%
NewerOlder

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 Sebago’s 9.6 sits near the middle of its state (40% of Maine towns have fewer) while its 2 listings outnumber those of 60% 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 (±5.3 points). The founding year is the first post office, not a stated founding date.

Founding year: the first post office (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 Sebago’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

Lost villages4 post offices opened and closed inside today’s Sebago, and 9 old place names are still on the map.A history waiting to be writtenOnly 1 old photo is in the public archives. The rest are in attics and albums.Shrank, then grewLost half of its people between 1860 and 1930, then grew 4-fold.On the map since 18963 editions of the USGS map, 1896 to 1983. Watch Sebago change.
★ What stands out · Places that used to be

Lost post offices, old corners and burying grounds

Sebago had its own post office from 1829 to 1940. Four other post offices opened and closed inside today’s town.

Sebago
1829–1940
East Sebago
1876–today
North Sebago
1884–1964
Convene
1892–1955
Hillside
1897–1955
Douglas Hill
1902–1972
18201920today
Hamlets and corners on the map
ConveneDouglas HillEast SebagoHillsideLong BeachMacs CornerNorth SebagoSebago CenterWest Sebago
25family graveyards and cemeteries inside Sebago
BabbBlakeBoulterBrown Cemetery 2ConveneDyerFitchFitchFitchFogg YardHaleyJewellJohn MartinKenisonLakesideOld WentworthOlden HansenPeabody Pond Road YardPikePoorRidlonSanbornWardWhiteWhitten - Field
See all 25

Babb Cemetery · Blake Cemetery · Boulter Cemetery · Brown Cemetery 2 · Convene Cemetery · Dyer Cemetery · Fitch Cemetery · Fitch Cemetery · Fitch Cemetery · Fogg Yard · Haley Cemetery · Jewell Cemetery · John Martin Cemetery · Kenison Cemetery · Lakeside Cemetery · Old Wentworth Cemetery · Olden Hansen Cemetery · Peabody Pond Road Yard Cemetery · Pike Cemetery · Poor Cemetery · Ridlon Cemetery · Sanborn Cemetery · Ward Cemetery · White Cemetery · Whitten - Field Cemetery

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Help out

Start Sebago’s collection

The first neighbors to add old photos shape how Sebago’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Date a photo1 archive item has no date. Guess the decade.+2Retake an old viewLong Beach (NBY 4447): stand where they stood+15Share a family photoSign in to add one+10
People over time

Sebago, census by census

05001,0001,5002,0001850190019502000958 in 1860Low: 470

Lost half of its people between 1860 and 1930, then grew 4-fold.

20 censuses, 1830–2020.

U.S. Census Bureau decennial counts, from the census table on Sebago’s Wikipedia page.

The story

How Sebago came to be

From Wikipedia’s history of Sebago.

Read it all →

Originally called Flintstown, it was granted in 1774 by the Massachusetts General Court to survivors of Captain John Flint's company of soldiers from Concord, Massachusetts. It replaced a grant of 1735 that awarded them Township No. 3 (now Walpole, New Hampshire), but which was ruled invalid when the border between Massachusetts and New Hampshire was redrawn to satisfy prior claims by the descendants of John Mason. On June 23, 1802, Flintstown was incorporated as Baldwin. Then on February 10, 1826, Sebago was set off from Baldwin and incorporated as a separate town. It took the name of Sebago Lake. Land was annexed from Denmark in 1830, and taken in 1834 to help form Naples.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Sebago, 1829 to 2020

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1829Post officeThe Sebago post office opens
  3. 1870BuiltFitch's General Store and House is built
  4. 1876Post officeThe East Sebago post office opens
  5. 1884Post officeThe North Sebago post office opens
  6. 1896On the mapFirst mapped by the U.S. Geological Survey
  7. 20th century
  8. 1940Post officeThe Sebago post office closes
  9. 1964Post officeThe North Sebago post office closes
  10. 21st century
  11. 2020CensusPopulation peaks at 1,911
By decade

Sebago, decade by decade

Date unknown1 to date
Long Beach (NBY 4447)Date?Long Beach (NBY 4447)
Today4 recent
Bungalow Woods2020Bungalow WoodsSebagoME FitchsGeneralStore2014SebagoME FitchsGeneralStoreSebagoME DykeMountainAnnex2014SebagoME DykeMountainAnnexSebagoME CommunityChurch2014SebagoME CommunityChurch
On the map

Sebago on the map, 1896 to 1983

Every edition of the U.S. Geological Survey’s map of Sebago. Tap a year, or press play to watch the town change.

Sebago on the 1896 USGS mapSebago on the 1942 USGS mapSebago on the 1983 USGS map1896Sebago sheet · 1:62,500

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Sebago.

Then & now

Stand where they stood

No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Long Beach (NBY 4447)
Retake this viewLong Beach (NBY 4447)

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Sebago’s page.

Retake this view · +15
On the National Register

2 historic places in Sebago

The country’s official list of buildings and places worth saving.

places listed
2
National Historic Landmarks
0
none yet
historic buildings protected
2
each building in a district counts
first listed
1995
Fitch's General Store and House
Fitch's General Store and House, built 1870Dyke Mountain Annex
Buildings

Architectural styles listings

Italianate1
Late Victorian1
Late 19th and 20th Century Revival1
Colonial Revival1
Fitch's General Store and HouseItalianate · Built 1870
Dyke Mountain AnnexLate Victorian

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

Famous people

Famous people close to Sebago

Nobody well known was born in Sebago itself, so here are the best known from just nearby.

See all →
Ellen G. WhiteAmerican author, co-founder of the Seventh-day … · b. 1827
Edwin HallAmerican physicist · b. 1855
Scotty 2 HottyAmerican professional wrestler · b. 1973
John Albion AndrewMassachusetts governor during the Civil War · b. 1818
J. N. AndrewsAmerican Seventh-day Adventist minister · b. 1829
Jeff DonnellAmerican actress · b. 1921
Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Naples4 historic placesBBaldwin2 historic placesA−Hiram4 historic placesAStandish6 historic placesADenmarkIts storyB−Casco3 historic placesBRaymond2 historic placesA−

Questions about Sebago’s history

What year was Sebago founded?

The Sebago post office opened in 1829, the earliest record of the town by name (U.S. post office records).

How does Sebago rank for history?

Sebago is more historic than 73% 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 Sebago?

Two places: the Fitch's General Store and House (listed 1995) and the Dyke Mountain Annex (2005).

How old are the homes in Sebago?

17% of Sebago’s homes were built before 1940 (Census estimate, ±5.3 points), against a typical 19% for a Maine town; the median home was built in 1975.

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

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 (5), Wikidata (2), the National Register of Historic Places (2), Wikipedia, 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.