Gardiner’s post office opened in 1803, and 47% of its homes were built before 1940
More historic than 96% of U.S. towns · #17 of 143 in Maine. What drives it
6 places in town are on the National Register, among them the Edward Arlington Robinson House, a National Historic Landmark, and two historic districts with 47 buildings between them. Below: 9 old photos and papers, maps from 1878 on, and the census since 1810.
Founding year: the first Gardiner post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Gardiner’s History grade
On its age, its old homes and the National Register, Gardiner is more historic than 96% of U.S. towns, #17 of 143 in Maine. All 3 inputs are above most U.S. towns; its share of homes from before 1940 ranks highest and its age lowest.
A+
HistoryA character grade: shown, never part of Gardiner’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 Gardiner’s 83.8 sits above most of its state (84% of Maine towns have fewer) while its 51 historic buildings outnumber those of 85% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from A to A+. The pre-1940 share is a Census survey estimate (±6.5 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 Gardiner’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Gardiner. Tap a year, or press play to watch the town change.
1892Gardiner 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 Gardiner.
Every building
Gardiner, building by building, 1878–1922
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
Located at the head of navigation on the Kennebec River, Gardiner was founded as Gardinerstown Plantation in 1754 by Dr. Silvester Gardiner, a prominent Boston physician. Dr. Gardiner had made a fortune as a drug merchant, with one apothecary shop in Massachusetts and two in Connecticut, and became a principal proprietor of the Kennebec Purchase within the old Plymouth Patent. He proved a tireless promoter for his development, which once comprised over 100,000 acres (400 km2).
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
The Gardiner post office opened in 1803, the earliest record of the town by name (U.S. post office records).
How does Gardiner rank for history?
Gardiner is more historic than 96% of U.S. towns, #17 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 Gardiner?
6 listings: 4 buildings, among them the Edward Arlington Robinson House (a National Historic Landmark since 1971), and 2 historic districts, the Gardiner Historic District and the Brunswick Square, with 47 contributing buildings. 51 historic buildings in all.
How old are the homes in Gardiner?
47% of Gardiner’s homes were built before 1940 (Census estimate, ±6.5 points), against a typical 19% for a Maine town; the median home was built in 1944.
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 (13), the Library of Congress (1), Wikidata (4), the National Register of Historic Places (6), 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), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.