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B−History
History · Rupert

Rupert’s post office opened in 1905, and 12% of its homes were built before 1940

More historic than 48% of U.S. towns · #27 of 59 in Idaho. What drives it

1 place in town is on the National Register, among them a historic district with 34 buildings. Below: 6 old photos and papers, maps from 1911 on, and the census since 1910.

1905first post office
1on the National Register
12%homes built before 1940
6old photos & papers
4famous people
From Rupert’s archive · credits on each photo
Quick answers

How Rupert began

When was Rupert founded?

1905

The Rupert post office opened in 1905, the earliest record of the town by name. Wikidata gives 1906.

First census: 297 in 19102020 census: 6,082121 years

How historic is Rupert?

B−

More historic than 48% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: the first Rupert post office (Blevins & Helbock, CC0). Wikidata: 1906.The full story ↓
History grade

What drives Rupert’s History grade

On its age, its old homes and the National Register, Rupert is more historic than 48% of U.S. towns, #27 of 59 in Idaho. Its National Register listings hold the grade up; its age pulls it down.

B−
HistoryA character grade: shown, never part of Rupert’s overall grade.
All U.S. towns we grade (21,289)Ahead of 48%
NewerOlder
Idaho towns of 2,500+ (59)Ahead of 55%

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 Rupert’s 54.9 sits above most of its state (87% of Idaho towns have fewer) while its 34 historic buildings outnumber those of 82% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would range from C− to A−. The pre-1940 share is a Census survey estimate (±5.6 points). The founding year is the first post office, not a stated founding date; Wikidata’s 1906 falls in the same era, so the grade doesn’t depend on which one is used.

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 Rupert’s past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · On the National Register

1 listing protects 34 historic buildings

The country’s official list of buildings and places worth saving. Boundary changes and added documentation are counted with their listing.

place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
34
each building in a district counts
first listed
2001
Rupert Town Square Historic District
Districts

Architectural styles listings

Late 19th and Early 20th Century American Movement1
Classical Revival1
Art Deco1
Late 19th and Early 20th Century American Movements: Commercial Style1
Moderne1

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

The story

How Rupert came to be

From Wikipedia’s history of Rupert.

Read it all →

Rupert, founded in 1906, sprang up after the announcement of the Minidoka Reclamation Project, which provided irrigation and electricity following the completion of the Minidoka Dam on the Snake River in 1906. After the dam was built, Rupert became one of the first cities in the world to have its streets lit by electricity.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Rupert, 1905 to 1964

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 20th century
  2. 1905Post officeThe Rupert post office opens
  3. 1910Born hereJohn Norby is born here
  4. 1942In the archiveRupert, Idaho. Swimming lesson
  5. 1942Born hereRonald A. Nussbaum is born here
  6. 1944Born hereBoyd Coddington is born here
  7. 1947Born hereMichael R. Collings is born here
  8. 1964On the mapFirst mapped by the U.S. Geological Survey
By decade

Rupert, decade by decade

One decade in the archive so far: the 1940s. Scroll each row; tap a photo for its story.

1950s–1990snothing yet
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.
Add from your album
On the map

Rupert on the map in 1964

The U.S. Geological Survey’s map of Rupert.

Rupert on the 1964 USGS map1964Rupert sheet · 1:24,000

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Rupert.

Every building

Rupert, building by building, 1911–1921

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.

Rupert fire insurance map, 1911, sheet 11911Sheet 1 of 3
Edition
BrickWoodStone

Sanborn Map Company, via the Library of Congress. Editions published in 1930 or earlier, which are in the public domain.

Then & now

Stand where they stood

No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Rupert, Idaho. Swimming lesson
Retake this viewRupert, Idaho. Swimming lesson, 1942

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Rupert’s page.

Retake this view · +15
People over time

Rupert, census by census

05001,0001,5002,0002,5003,0003,5004,0004,5005,0005,5006,0006,5001920194019601980200020206,082

Grew from 297 people in 1910 to 6,082 in 2020, more than tenfold.

12 censuses, 1910–2020.

U.S. Census Bureau decennial counts, from the census table on Rupert’s Wikipedia page.

Famous people

4 famous people were born in Rupert

Writers, athletes, leaders and more, ranked by how widely they’re known.

See all →
Help out

Finish Rupert’s story

Most archives stop around 1920. The photos from after that are in family albums, not libraries.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
1 of 10 decades. The empty ones are waiting for someone’s album.

Questions about Rupert’s history

What year was Rupert founded?

The Rupert post office opened in 1905, the earliest record of the town by name (U.S. post office records). Wikidata gives 1906.

How does Rupert rank for history?

Rupert is more historic than 48% of U.S. towns, #27 of 59 in Idaho. 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 Rupert?

One place: the Rupert Town Square Historic District (listed 2001).

How old are the homes in Rupert?

12% of Rupert’s homes were built before 1940 (Census estimate, ±5.6 points), against a typical 8.5% for an Idaho town; the median home was built in 1971.

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

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).

From the Library of Congress (6), 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.