La Platte’s post office opened in 1871
How La Platte began
When was La Platte founded?
The La Platte post office opened in 1871, the earliest record of the town by name. Two smaller post offices, Larimer City (1858) and Larimer Millls (1865), opened inside today’s town and later closed.
Famous people close to La Platte
Nobody well known was born in La Platte itself, so here are the best known from just nearby.
Lost post offices, old corners and places now gone
La Platte had its own post office from 1871 to 1955. Two other post offices 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).
History across the town line
Each neighbor’s History grade, on the same three inputs.
Questions about La Platte’s history
What year was La Platte founded?
The La Platte post office opened in 1871, the earliest record of the town by name (U.S. post office records).
Memory lane
What the archives can’t tell you, neighbors can.
Where this page comes from
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). How TownRatings grades history →
From 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.