2 of Ashton-Sandy Spring’s places are on the National Register
More historic than 46% of U.S. towns · #102 of 261 in Maryland. What drives it
Its Register listings are the Sandy Spring Friends Meetinghouse and the Clifton. Most of Ashton-Sandy Spring was built recently: 6% of its homes predate 1940 and the median home dates from 1986. Below: maps from 1948 on and the census since 2000.
On its age, its old homes and the National Register, Ashton-Sandy Spring is more historic than 46% of U.S. towns, #102 of 261 in Maryland. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
B−
HistoryA character grade: shown, never part of Ashton-Sandy Spring’s overall grade.
Few Maryland towns list much on the Register (a typical Maryland town has 0.9 per 10,000 residents, the U.S. 2.4), so Ashton-Sandy Spring’s 3.6 sits near the middle of its state (59% of Maryland towns have fewer) while its 2 listings outnumber those of 60% of U.S. towns.
How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±5.3 points).
Founding year: our sources. 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 Ashton-Sandy Spring’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Wikipedia doesn’t have a history of Ashton-Sandy Spring yet. The photos, dates and memories neighbors add here are how it gets written.
Ashton-Sandy Spring is a census-designated place (CDP) in Montgomery County, Maryland, United States. The CDP is designated to include the two unincorporated communities of Ashton and Sandy Spring, as well as the smaller community of Brinklow. It had a population of 5,746 as of the 2020 census.
Between the 2010 and 2020 censuses its population grew from 5,628 to 5,746 (+2%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Ashton-Sandy Spring, 1748 to 1988
Woven from the archive, old maps, post office records, the National Register and the people born here.
Every edition of the U.S. Geological Survey’s map of Ashton-Sandy Spring. Tap a year, or press play to watch the town change.
1948Baltimore sheet · 1:250,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Ashton-Sandy Spring.
On the National Register
2 historic places in Ashton-Sandy Spring
The country’s official list of buildings and places worth saving.
Ashton-Sandy Spring is more historic than 46% of U.S. towns, #102 of 261 in Maryland. 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 Ashton-Sandy Spring?
Two places: the Sandy Spring Friends Meetinghouse (listed 1972) and the Clifton (1974).
How old are the homes in Ashton-Sandy Spring?
6% of Ashton-Sandy Spring’s homes were built before 1940 (Census estimate, ±5.3 points), against a typical 3.3% for a Maryland 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 (4), the National Register of Historic Places (2), 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.
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2020
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