Most of Zolfo Springs was built recently: 0.8% of its homes predate 1940 and the median home dates from 1977. Below: 1 old photo or paper, maps from 1956 on, and the census since 1910.
From Zolfo Springs’ archive · credits on each photo
Quick answers
How Zolfo Springs began
When was Zolfo Springs founded?
1909
The Zolfo Springs post office opened in 1909, the earliest record of the town by name. Another post office, Zolfo (1889), opened inside today’s town and later closed.
First census: 171 in 19102020 census: 1,737117 years
How historic is Zolfo Springs?
D
More historic than 7% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Zolfo Springs post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Zolfo Springs’ History grade
On its age, its old homes and the National Register, Zolfo Springs is more historic than 7% of U.S. towns. Its National Register listings hold the grade up; its age pulls it down.
D
HistoryA character grade: shown, never part of Zolfo Springs’ 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 Zolfo Springs’ 0.0 sits below most of its state (33% of Florida towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from D− to D. The pre-1940 share (±1.2 points) is firm at this size. 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 Zolfo Springs’ past
Read from the archive, the National Register and the record. The page puts what stands out first.
Early prosperity in the area (where the settlement was known as "Zolfo") was due to its location along the Florida Cracker Trail, a cattle trail from Bradenton to Fort Pierce. Cattle herded from this area and the Florida Heartland was run to the coasts along this route as early as 1850. The Florida Cracker Trail today includes parts of State Road 64 and State Road 66 through Zolfo Springs.
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.
Every edition of the U.S. Geological Survey’s map of Zolfo Springs. Tap a year, or press play to watch the town change.
1956Zolfo Springs sheet · 1:24,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Zolfo Springs.
Then & now
Stand where they stood
No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.
Retake this view1940 Census Enumeration District Maps - Florida - Hardee County - ED 25-1 - ED 25-23, 1880
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Zolfo Springs’ page.
Between 171 and 1,827 people in every census since 1910.
12 censuses, 1910–2020.
U.S. Census Bureau decennial counts, from the census table on Zolfo Springs’ Wikipedia page.
Places that used to be
Lost post offices and old corners
Zolfo Springs’s post office has been open since 1909. Another post office, Zolfo, opened and closed inside today’s town.
Zolfo
1889–1909
Zolfo Springs
1909–today
18801950today
Hamlets and corners on the map
The Oasis at Zolfo Springs Mobile Home Park
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Questions about Zolfo Springs’ history
What year was Zolfo Springs founded?
The Zolfo Springs post office opened in 1909, the earliest record of the town by name (U.S. post office records).
How does Zolfo Springs rank for history?
Zolfo Springs is more historic than 7% 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.
How old are the homes in Zolfo Springs?
0.8% of Zolfo Springs’ homes were built before 1940 (Census estimate, ±1.2 points), against a typical 0.6% for a Florida 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 (17), 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) 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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