How Alamo came to be
From Wikipedia’s history of Alamo.
Alamo was laid out in 1909, and named after the Alamo Mission in San Antonio.
Text from Wikipedia, licensed CC BY-SA 4.0.
Each edition grades its towns against each other only.
More historic than 3% of U.S. towns · #591 of 642 in Texas. What drives it
Most of Alamo was built recently: 0.0% of its homes predate 1940 and the median home dates from 1997. Below: 16 old photos and papers, maps from 1914 on, and the census since 1930.
Alamo dates its founding to 1909 (Wikipedia’s history). The census first counted it in 1930.
More historic than 3% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Alamo is more historic than 3% of U.S. towns, #591 of 642 in Texas. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
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 Alamo’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.
Founding year: Wikipedia (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 →
Read from the archive, the National Register and the record. The page puts what stands out first.
Alamo’s post office has been open since 1919. Another post office, Forum, opened and closed inside today’s town.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
5 decades in the archive, from the 1860s to the 1930s. Scroll each row; tap a photo for its story.
Every edition of the U.S. Geological Survey’s map of Alamo. Tap a year, or press play to watch the town change.

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Alamo.
From Wikipedia’s history of Alamo.
Alamo was laid out in 1909, and named after the Alamo Mission in San Antonio.
Text from Wikipedia, licensed CC BY-SA 4.0.
Woven from the archive, old maps, post office records, the National Register and the people born here.
In the archiveAlamo, San Antonio, in big citites
In the archiveThe Alamo, the shrine of Texas heroism - from President Roosevelt's stand - San Antonio, …
In the archiveBattle of the Alamo
On the mapFirst mapped by the U.S. Geological Survey
In the archiveRemember the Alamo?--Historic building entirely surrounded by flivvers and automobiles
In the archiveMexican cabbage packerNo then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Alamo’s page.
Retake this view · +15Grew from 1,018 people in 1930 to 19,493 in 2020, more than tenfold.
10 censuses, 1930–2020.
U.S. Census Bureau decennial counts, from the census table on Alamo’s Wikipedia page.
Writers, athletes, leaders and more, ranked by how widely they’re known.
Most archives stop around 1920. The photos from after that are in family albums, not libraries.
Each neighbor’s History grade, on the same three inputs.
In 1909, according to Wikipedia’s history of the town. Alamo’s post office opened in 1919, and the census of 1930 counted 1,018 people here.
Alamo is more historic than 3% of U.S. towns, #591 of 642 in Texas. 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.
0.0% of Alamo’s homes were built before 1940 (Census estimate), against a typical 1.6% for a Texas town; the median home was built in 1997.
What the archives can’t tell you, neighbors can.
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 the Library of Congress (16), 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.

1914San Juan sheet · 1:62,500