The Shoshone post office opened in 1870, the earliest record of the town by name. Another post office, Naples (1882), opened inside today’s city and later closed.
First census: 1,155 in 19102020 census: 1,653156 years
How historic is Shoshone?
A−
More historic than 81% of U.S. towns, on its age, its old homes and the National Register.
Founding year: the first Shoshone post office (Blevins & Helbock, CC0).The full story ↓
History grade
What drives Shoshone’s History grade
On its age, its old homes and the National Register, Shoshone is more historic than 81% of U.S. towns. Its National Register listings hold the grade up; its age pulls it down.
A−
HistoryA character grade: shown, never part of Shoshone’s overall grade.
Idaho towns list more on the Register than most of the country (a typical Idaho town has 8.4 per 10,000 residents, the U.S. 2.4), so Shoshone’s 267 sits above most of its state (100% of Idaho towns have fewer) while its 51 historic buildings outnumber those of 85% of U.S. towns.
How sure. Graded on any two of the three inputs instead, the letter would range from B to A. The pre-1940 share is a Census survey estimate (±6.9 points). The founding year is the first post office, not a stated founding date.
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 →
What stands out about Shoshone’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
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.
1884Sheet 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.
On the National Register
11 listings protect 51 historic buildings
The country’s official list of buildings and places worth saving. Boundary changes and added documentation are counted with their listing.
Founded in 1882 during the construction of the Oregon Short Line, Shoshone has long been considered the main railroad station in south central Idaho's Magic Valley region. The much larger community of Twin Falls 26 miles (42 km) to the south never developed a strong railroad presence due to the logistical issues presented by its location south of the Snake River Canyon. For many years, Shoshone was the only Amtrak stop in south central Idaho.
Shoshone’s post office has been open since 1870. Another post office, Naples, opened and closed inside today’s town.
Shoshone
1870–today
Naples
1882–1883
18701950today
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Questions about Shoshone’s history
What year was Shoshone founded?
The Shoshone post office opened in 1870, the earliest record of the town by name (U.S. post office records).
How does Shoshone rank for history?
Shoshone is more historic than 81% of U.S. towns. 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 Shoshone?
11 listings: 10 buildings and 1 historic district, the Shoshone Historic District, with 41 contributing buildings. 51 historic buildings in all.
How old are the homes in Shoshone?
25% of Shoshone’s homes were built before 1940 (Census estimate, ±6.9 points), against a typical 8.5% for an Idaho town; the median home was built in 1968.
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 (15), Wikidata (3), the National Register of Historic Places (11), 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.