1 of Hybla Valley’s places is on the National Register
More historic than 19% of U.S. towns · #163 of 253 in Virginia. What drives it
Its Register listing is the Mount Vernon Enterprise Lodge #3488-Pride of Fairfax County Lodge #298. Most of Hybla Valley was built recently: 1% of its homes predate 1940 and the median home dates from 1977. Below: maps from 1944 on and the census since 1980.
On its age, its old homes and the National Register, Hybla Valley is more historic than 19% of U.S. towns, #163 of 253 in Virginia. 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 Hybla Valley’s overall grade.
Virginia towns list more on the Register than most of the country (a typical Virginia town has 3.6 per 10,000 residents, the U.S. 2.4), so Hybla Valley’s 0.6 sits near the middle of its state (37% of Virginia towns have fewer) while its 1 listings outnumber those of 51% 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 (±0.9 points) is firm at this size.
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 Hybla Valley’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
The Mason family's Hollin Hall plantation, just south of Alexandria, had become the property of several owners, including Edward Curtis Gibbs and the Wilson family. Thomson Dairy had been founded on the land in the late 19th century, and lasted until Merle Thorpe purchased it in the early 20th century. The various dairy farms, such as Sherwood Farm, Hybla Valley Farm, and Popkins Farm were converted into suburban neighborhoods, while plans for the construction of the George Washington Air Junction and the Hybla Valley Airport began. The civilian airport was proposed to be the largest in the world, yet the land, which had once been dairy farm, was abandoned and is currently Huntley Meadows Park. During World War II, the famous Hollin Hills subdivision, to the east of U.S. Route 1 towards the Potomac River, was completed by designers Charles Goodman and Robert Davenport. Also during the w…
Hybla Valley is more historic than 19% of U.S. towns, #163 of 253 in Virginia. 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 Hybla Valley?
One place: the Mount Vernon Enterprise Lodge #3488-Pride of Fairfax County Lodge #298 (listed 2022).
How old are the homes in Hybla Valley?
1% of Hybla Valley’s homes were built before 1940 (Census estimate), against a typical 1.9% for a Virginia town; the median home was built in 1977.
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 (30), the National Register of Historic Places (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia) 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.