Erie dates to 1867, and 1 of its places is on the National Register
More historic than 25% of U.S. towns · #84 of 159 in Colorado. What drives it
Its Register listing is the Lincoln School. Most of Erie was built recently: 1% of its homes predate 1940 and the median home dates from 2008. Below: 5 old photos and papers, maps from 1893 on, and the census since 1880.
Founding year: Wikipedia. First post office: 1871.The full story ↓
History grade
What drives Erie’s History grade
On its age, its old homes and the National Register, Erie is more historic than 25% of U.S. towns, #84 of 159 in Colorado. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.
C−
HistoryA character grade: shown, never part of Erie’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 Erie’s 0.3 sits near the middle of its state (46% of Colorado towns have fewer) while its 1 listings outnumber those of 51% 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 (±1.0 points) is firm at this size. Two sources give 1867.
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 Erie’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
Every edition of the U.S. Geological Survey’s map of Erie. Tap a year, or press play to watch the town change.
1904Niwot sheet · 1:62,500
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Erie.
Places that used to be
Old corners and places now gone
Erie’s post office has been open since 1871.
Hamlets and corners on the map
LeynerPlumbsPuritanTabor
Gone or out of use
Bailey Gravel PitmineBoulder Valley MinemineBoulder Valley MinemineBrennan MinemineBriggs MinemineC and M Gravel PitmineChase MinemineClayton MinemineCleveland MinemineColumbine MinemineCrandell Number One MinemineEagle MinemineErie MinemineErie PitmineGarfield MinemineGarfield Number Two MinemineImperial MinemineLehigh Minemine
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Every building
Erie, building by building, 1893–1906
Fire insurance maps drew every building, what it was made of and what it was used for, so insurers could price the risk of fire. Pick a year, then a sheet.
1893Sheet 1 of 1
Edition
Sheets
BrickWoodStone
Sanborn Map Company, via the Library of Congress. Editions published in 1930 or earlier, which are in the public domain.
In the mid-1860s, coal was discovered in southwestern corner of Weld County in the Territory of Colorado. Erie was originally settled in 1867 and named after Erie, Pennsylvania, the former home of early settler Richard Van Valkenburg.
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 1867, according to Wikipedia’s history of the town. Erie’s post office opened in 1871, and the census of 1880 counted 358 people here.
How does Erie rank for history?
Erie is more historic than 25% of U.S. towns, #84 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 Erie?
One place: the Lincoln School (listed 1981).
How old are the homes in Erie?
1% of Erie’s homes were built before 1940 (Census estimate, ±1.0 points), against a typical 2.5% for a Colorado town; the median home was built in 2008.
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 (23), 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.