Founding year: the first Geronimo post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Geronimo’s History grade
On its age, its old homes and the National Register, Geronimo is more historic than 20% of U.S. towns. Its age holds the grade up; its share of homes from before 1940 pulls it down.
C−
HistoryA character grade: shown, never part of Geronimo’s overall grade.
Few Texas towns list much on the Register (a typical Texas town has 0.0 per 10,000 residents, the U.S. 2.4), so Geronimo’s 0.0 sits below most of its state (34% of Texas 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 C− to C. The pre-1940 share is a Census survey estimate (±4.6 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 Geronimo’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
In 1831 during the Mexican Texas period, James Bowie surveyed eleven leagues of land within the colony of Green DeWitt. Located on the northeast bank of the Guadalupe River, the area surrounded the natural springs called "Tio Geronimo". José Antonio Navarro purchased land and lived here later, 1840–1853. As a champion of human rights, he was a signer of the Texas Declaration of Independence, the Constitution of the Republic of Texas, and the Constitution of the State of Texas.
The Geronimo post office opened in 1889, the earliest record of the town by name (U.S. post office records).
How does Geronimo rank for history?
Geronimo is more historic than 20% 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 Geronimo?
3% of Geronimo’s homes were built before 1940 (Census estimate, ±4.6 points), against a typical 1.6% for a Texas town; the median home was built in 2004.
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 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.
