From Crownsville’s archive · credits on each photo
Quick answers
How Crownsville began
When was Crownsville founded?
1851
The Crownsville post office opened in 1851, the earliest record of the town by name. Two smaller post offices, Cooksville (1824) and Belvoir (1898), opened inside today’s town and later closed.
2020 census: 1,924175 years
How historic is Crownsville?
B−
More historic than 55% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Crownsville post office (Blevins & Helbock, CC0).
History grade
What drives Crownsville’s History grade
On its age, its old homes and the National Register, Crownsville is more historic than 55% of U.S. towns. Its National Register listings hold the grade up; its age pulls it down.
B−
HistoryA character grade: shown, never part of Crownsville’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 Crownsville’s 22.8 sits above most of its state (76% of Maryland towns have fewer) while its 4 listings outnumber those of 68% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from C+ to B+. The pre-1940 share is a Census survey estimate (±9.6 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 Crownsville’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
The story so far
Crownsville, in brief
Wikipedia doesn’t have a history of Crownsville yet. The photos, dates and memories neighbors add here are how it gets written.
Crownsville is a census-designated place (CDP) in Anne Arundel County, Maryland, United States. The population was 1,757 at the 2010 census. Formally, it is part of the Baltimore Metropolitan Area. It hosts the Anne Arundel County Fair each September, as well as the annual Maryland Renaissance Festival for several summer weekends. A state psychiatric hospital was formerly in Crownsville. The area offers waterfront scenery and easy access to urban metropolitan areas and culture.
Its first post office opened in 1851. Between the 2010 and 2020 censuses its population grew from 1,757 to 1,924 (+10%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Crownsville, 1824 to 1990
Woven from the archive, old maps, post office records, the National Register and the people born here.
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 Crownsville post office opened in 1851, the earliest record of the town by name (U.S. post office records).
How does Crownsville rank for history?
Crownsville is more historic than 55% of U.S. towns. 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 Crownsville?
4 listings: 4 buildings, among them the Belvoir (listed 1971, the first).
How old are the homes in Crownsville?
11% of Crownsville’s homes were built before 1940 (Census estimate, ±9.6 points), against a typical 3.3% for a Maryland town; the median home was built in 1991.
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 (6), the National Register of Historic Places (4), 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.