Quincy dates to 1892, and 1 of its places is on the National Register
More historic than 37% of U.S. towns · #97 of 285 in Washington. What drives it
Most of Quincy was built recently: 6% of its homes predate 1940 and the median home dates from 1986. Its Register listing is the Samuel and Katherine Reiman House. Below: maps from 1909 on and the census since 1910.
Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1902. Name: Wikipedia, licensed CC BY-SA 4.0.The full story ↓
History grade
What drives Quincy’s History grade
On its age, its old homes and the National Register, Quincy is more historic than 37% of U.S. towns, #97 of 285 in Washington. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
C+
HistoryA character grade: shown, never part of Quincy’s overall grade.
Few Washington towns list much on the Register (a typical Washington town has 0.1 per 10,000 residents, the U.S. 2.4), so Quincy’s 1.3 sits near the middle of its state (62% of Washington 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 C to C+. The pre-1940 share is a Census survey estimate (±4.3 points). Two sources give 1892.
Founding year: Wikidata (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 Quincy’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Quincy lies atop a part of the Columbia River Basalt Group, which is overlain by Pleistocene outburst flood deposits. The Missoula Floods had one of their outlets at Trinidad, close to Quincy, and another near Ancient Lakes, which includes the Ancient Lakes of the Columbia Valley AVA. Glacial erratics carried from as far away as Montana can be found nearby. The area also has an abundance of rimrock.
Quincy was founded as a railroad camp during construction of the Great Northern Railway in 1892, and was incorporated on March 27, 1907. It was named after Quincy, Illinois.
The arrival of the water from the Grand Coulee Dam in 1952 changed the town.
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.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
People over time
Quincy, census by census
Grew from 264 people in 1910 to 7,543 in 2020, more than tenfold.
12 censuses, 1910–2020.
U.S. Census Bureau decennial counts, from the census table on Quincy’s Wikipedia page.
Questions about Quincy’s history
What year was Quincy founded?
In 1892, according to Wikidata and Wikipedia’s history of the town. Quincy’s post office opened in 1902, and the census of 1910 counted 264 people here.
How does Quincy rank for history?
Quincy is more historic than 37% of U.S. towns, #97 of 285 in Washington. 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 Quincy?
One place: the Samuel and Katherine Reiman House (listed 2008).
How old are the homes in Quincy?
6% of Quincy’s homes were built before 1940 (Census estimate, ±4.3 points), against a typical 4.3% for a Washington town; the median home was built in 1986.
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 (1), 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), 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.