Gilbert dates to 1902, and 1 of its places is on the National Register
More historic than 14% of U.S. towns · #74 of 140 in Arizona. What drives it
Most of Gilbert was built recently: 0.2% of its homes predate 1940 and the median home dates from 2003. Its Register listing is the Gilbert Elementary School. Below: 1 old photo or paper, maps from 1913 on, and the census since 1920.
Founding year: Wikipedia. First post office: 1910.The full story ↓
History grade
What drives Gilbert’s History grade
On its age, its old homes and the National Register, Gilbert is more historic than 14% of U.S. towns, #74 of 140 in Arizona. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
D
HistoryA character grade: shown, never part of Gilbert’s overall grade.
Among the 400 U.S. cities of 100,000 or more, Gilbert ranks #373 on History.
Few Arizona towns list much on the Register (a typical Arizona town has 0.1 per 10,000 residents, the U.S. 2.4), so Gilbert’s 0.0 sits near the middle of its state (58% of Arizona towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.
Newer cities are common at Gilbert’s size: in the typical U.S. city of 100,000 or more, 5% of homes predate 1940.
How sure. Graded on any two of the three inputs instead, the letter would range from D− to C. The pre-1940 share (±0.1 points) is firm at this size. Two sources give 1902.
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 →
What stands out about Gilbert’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Gilbert was established by William "Bobby" Gilbert, who provided land to the Arizona Eastern Railway in 1902 to construct a rail line between Phoenix and Florence, Arizona. Ayer's Grocery Store, Gilbert's first store, opened in 1910 and became the location of the first post office in 1912. The post office moved several times before settling on the east side of Gilbert Road in downtown, where it stands today. In 1912, many Mormons who had fled the Mormon colonies in Mexico due to the actions of Pancho Villa's forces settled in Gilbert. By 1915, they began holding church meetings at the Gilbert Elementary School. In 1918, they were organized into the Gilbert Ward.
In 1902, according to Wikipedia’s history of the town. Gilbert’s post office opened in 1910, and the census of 1920 counted 865 people here.
How does Gilbert rank for history?
Gilbert is more historic than 14% of U.S. towns, #74 of 140 in Arizona. 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 Gilbert?
One place: the Gilbert Elementary School (listed 1980).
How old are the homes in Gilbert?
0.2% of Gilbert’s homes were built before 1940 (Census estimate), against a typical 0.4% for an Arizona town; the median home was built in 2003.
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), the Library of Congress (3), Wikidata (1), the National Register of Historic Places (1), 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), the USGS Geographic Names Information System and Sanborn fire insurance maps (Library of Congress). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.