Cortez dates to 1886, and 11% of its homes were built before 1940
More historic than 51% of U.S. towns · #40 of 159 in Colorado. What drives it
Its Register listings are the Ertel Funeral Home, the Montezuma Valley National Bank and Store Building and the Cortez High School. Below: 10 old photos and papers, maps from 1919 on, and the census since 1890.
Founding year: Wikidata. First post office: 1887.The full story ↓
History grade
What drives Cortez’s History grade
On its age, its old homes and the National Register, Cortez is more historic than 51% of U.S. towns, #40 of 159 in Colorado. Its National Register listings hold the grade up; its age pulls it down.
B−
HistoryA character grade: shown, never part of Cortez’s overall grade.
Few Colorado towns list much on the Register (a typical Colorado town has 1.1 per 10,000 residents, the U.S. 2.4), so Cortez’s 4.5 sits near the middle of its state (61% of Colorado towns have fewer) while its 4 historic buildings outnumber those of 68% 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 (±3.5 points). Two sources give 1886.
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 Cortez’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
In 1886, the town was built to provide housing for the men working on the tunnels and irrigation ditches required to divert water out of the Dolores River and into Montezuma Valley. The town was named for Spanish conquistador Hernán Cortés. The Cortez, Colorado post office opened on June 21, 1887.
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 1886, according to Wikidata. Cortez’s post office opened in 1887, and the census of 1890 counted 332 people here.
How does Cortez rank for history?
Cortez is more historic than 51% of U.S. towns, #40 of 159 in Colorado. 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 Cortez?
Three places: the Ertel Funeral Home (listed 1995), the Montezuma Valley National Bank and Store Building (2009) and the Cortez High School (2016).
How old are the homes in Cortez?
11% of Cortez’s homes were built before 1940 (Census estimate, ±3.5 points), against a typical 2.5% for a Colorado town; the median home was built in 1972.
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 (20), the Library of Congress (2), Wikidata (2), the National Register of Historic Places (3), 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.