Each edition grades its towns against each other only.
More historic than 18% of U.S. towns · #97 of 159 in Colorado. What drives it
Most of Eagle was built recently: 3% of its homes predate 1940 and the median home dates from 1999. Below: maps from 1962 on and the census since 1900.
The Eagle post office opened in 1891, the earliest record of the town by name. Another post office, Castle (1885), opened inside today’s town and later closed.
More historic than 18% of U.S. towns, on its age, its old homes and the National Register.
On its age, its old homes and the National Register, Eagle is more historic than 18% of U.S. towns, #97 of 159 in Colorado. Its age holds the grade up; its National Register listings pull it down.
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 Eagle’s 0.0 sits below most of its state (22% of Colorado towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.
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 →
Read from the archive, the National Register and the record. The page puts what stands out first.
The first neighbors to add old photos shape how Eagle’s history is told.
From Wikipedia’s history of Eagle.
The Eagle, Colorado, post office opened on September 3, 1891, and the Town of Eagle was incorporated on April 5, 1905. The town takes its name from Eagle County, which itself takes its name from the Eagle River.
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.
2022Denver and Rio Grande Western Caboose No. 01461
2020Old Eagle County Court House
2020Grizzly Creek Fire - 8.22.22
2020Grizzly Creek Fire - 8.22.21
2020Eagle County Justice Center
2018Roaring Fork Colorado basin mapMap
2016Red Cliffs
2012Colorado,USA. - panoramio (4)
2011Pulled off of 1-70 near Eagle to enjoy the sight
2011Open Carry of a 9mm Browning Hi Power in
2011Open Carry of a 9mm Browning Hi Power in Eagle, Color…Every edition of the U.S. Geological Survey’s map of Eagle. 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 Eagle.
Grew from 124 people in 1900 to 7,511 in 2020, more than tenfold.
13 censuses, 1900–2020.
U.S. Census Bureau decennial counts, from the census table on Eagle’s Wikipedia page.
Eagle’s post office has been open since 1891. Another post office, Castle, 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).
Each neighbor’s History grade, on the same three inputs.
The Eagle post office opened in 1891, the earliest record of the town by name (U.S. post office records).
Eagle is more historic than 18% of U.S. towns, #97 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.
3% of Eagle’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 1999.
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 Wikimedia Commons (11), Wikipedia, 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.
