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History · Castle Hill

Castle Hill’s post office opened in 1857, and 28% of its homes were built before 1940

Below: maps from 1935 on and the census since 1870.

1857first post office
0on the National Register
28%homes built before 1940
Add an old photoShare a memory
Quick answers

How Castle Hill began

When was Castle Hill founded?

1857

The Castle Hill post office opened in 1857, the earliest record of the town by name.

First census: 237 in 18702020 census: 373169 years
Founding year: the first Castle Hill post office (Blevins & Helbock, CC0).

What stands out about Castle Hill’s past

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

A history waiting to be writtenNo old photos of Castle Hill are in the public archives yet. The rest are in attics and albums.Boom and bustPeaked at 697 in 1940; 373 people lived here in 2020.
★ What stands out · Help out

Start Castle Hill’s collection

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Share a family photoSign in to add one+10
People over time

Castle Hill, census by census

010020030040050060070018801900192019401960198020002020Peak: 697

Peaked at 697 in 1940; 373 people lived here in 2020.

16 censuses, 1870–2020.

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

The story so far

Castle Hill, in brief

Wikipedia doesn’t have a history of Castle Hill yet. The photos, dates and memories neighbors add here are how it gets written.

Castle Hill is a town in Aroostook County, Maine, United States. The population was 373 people at the 2020 census.

Its first post office opened in 1857. Between the 2010 and 2020 censuses its population fell from 425 to 373 (-12%).

Intro from Wikipedia. Population: U.S. Census Bureau.

Timeline

Castle Hill, 1857 to 1940

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

  1. 19th century
  2. 1857Post officeThe Castle Hill post office opens
  3. 20th century
  4. 1905Post officeThe Castle Hill post office closes
  5. 1935On the mapFirst mapped by the U.S. Geological Survey
  6. 1940CensusPopulation peaks at 697
By decade

Castle Hill, decade by decade

Today1 recent
MEMap-location-of-Castle Hill2017MEMap-location-of-Castle Hill
On the map

Castle Hill on the map, 1935 to 1984

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

Castle Hill on the 1935 USGS mapCastle Hill on the 1953 USGS mapCastle Hill on the 1975 USGS mapCastle Hill on the 1984 USGS map1935Presque Isle 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 Castle Hill.

Famous people

Famous people close to Castle Hill

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

See all →
S
Susan CollinsUnited States Senator from Maine since 1997 · b. 1952
Jessica MeirAmerican and Swedish astronaut · b. 1977
John CrowleyAmerican writer of speculative fiction · b. 1942
L
Lynn FlewellingAmerican writer · b. 1958
J
Jack SepkoskiAmerican paleontologist · b. 1948
John H. ReedAmerican politician · b. 1921
Places that used to be

Lost post offices and burying grounds

Castle Hill had its own post office from 1857 to 1905.

Castle Hill
1857–1905
18501940today
3cemeteries and burying grounds inside Castle Hill
Castle HillHoffeses FamilyTarr

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

Stories next door

History across the town line

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

WadeIts storynot graded: under 1,000 residents or part of its townAshlandIts storyBMapletonIts storyC

Questions about Castle Hill’s history

What year was Castle Hill founded?

The Castle Hill post office opened in 1857, the earliest record of the town by name (U.S. post office records).

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). How TownRatings grades history →

From Wikimedia Commons (1), 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.