Most of St. Leo was built recently: 4% of its homes predate 1940 and the median home dates from 1983. 1 place in town is on the National Register, among them a historic district with 3 buildings. Below: 3 old photos and papers, maps from 1954 on, and the census since 1930.
Founding year: Wikidata. First post office: 1890.The full story ↓
History grade
What drives St. Leo’s History grade
On its age, its old homes and the National Register, St. Leo is more historic than 45% of U.S. towns. 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 St. Leo’s overall grade.
Few Florida towns list much on the Register (a typical Florida town has 0.0 per 10,000 residents, the U.S. 2.4), so St. Leo’s 15.1 sits above most of its state (87% of Florida towns have fewer) while its 3 historic buildings outnumber those of 65% 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 (±7.8 points). Two sources give 1882.
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 St. Leo’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
In 1889, the Benedictines established the Holy Name Monastery, Saint Leo Abbey, and St. Leo College on Judge Edmund F. Dunne's former homestead and farmland east of San Antonio, Florida on the shores of Lake Jovita, later incorporating the area as part of a new town called St. Leo.
Dunne was a legal counsel involved in the Disston Land Purchase of 1881, and as his commission, received 100,000 choice acres (400 km2) of land out of the 4,000,000 acre (16,000 km2) purchase. The following year on February 15, while surveying the Disston Purchase with his cousin, Captain Hugh Dunne, Dunne selected the area around Lake Jovita, which he named after St. Jovita, as his commission and began settling it.
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.
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.
In 1882, according to Wikidata. St. Leo’s post office opened in 1890, and the census of 1930 counted 158 people here.
How does St. Leo rank for history?
St. Leo is more historic than 45% 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 St. Leo?
One place: the St Leo Abbey Historic District (listed 1998).
How old are the homes in St. Leo?
4% of St. Leo’s homes were built before 1940 (Census estimate, ±7.8 points), against a typical 0.6% for a Florida town; the median home was built in 1983.
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 (12), Wikidata (1), the National Register of Historic Places (1), Wikipedia, 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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