Helena dates to 1864, and 22% of its homes were built before 1940
More historic than 77% of U.S. towns · #9 of 42 in Montana. What drives it
50 places in town are on the National Register, among them seven historic districts with 348 buildings between them. Below: 14 old photos and papers, maps from 1884 on, and the census since 1870.
Founding year: Wikidata; Wikipedia’s history section gives the same year. First post office: 1865.The full story ↓
History grade
What drives Helena’s History grade
On its age, its old homes and the National Register, Helena is more historic than 77% of U.S. towns, #9 of 42 in Montana. Its National Register listings hold the grade up; its age pulls it down.
A−
HistoryA character grade: shown, never part of Helena’s overall grade.
Montana towns list more on the Register than most of the country (a typical Montana town has 12.7 per 10,000 residents, the U.S. 2.4), so Helena’s 123 sits above most of its state (82% of Montana towns have fewer) while its 415 historic buildings outnumber those of 96% 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 (±2.2 points) is firm at this size. Two sources give 1864.
Founding year: Wikidata (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 Helena’s past
Read from the archive, the National Register and the record. The page puts what stands out first.
The Helena area was long inhabited by various indigenous peoples. Evidence from the MacHaffie and Indian Creek sites on opposite sides of the Elkhorn Mountains southeast of the Helena Valley show that people of the Folsom culture lived in the area more than 10,000 years ago. Before the introduction of the horse 300 years ago, and since, other native peoples, including the Salish and the Blackfeet, visited the area seasonally on their nomadic rounds.
By the early 1800s, people of European descent from the United States and British Canada began arriving to work the streams of the Missouri River watershed looking for fur-bearing animals such as the beaver, undoubtedly bringing them through the area now known as the Helena Valley.
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.
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.
In 1864, according to Wikidata and Wikipedia’s history of the town. Helena’s post office opened in 1865, and the census of 1870 counted 3,106 people here.
How does Helena rank for history?
Helena is more historic than 77% of U.S. towns, #9 of 42 in Montana. 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 Helena?
50 listings: 40 buildings, among them the Former Montana Executive Mansion (listed 1970, the first), 7 historic districts with 348 contributing buildings, 1 site, and 2 structures. 415 historic buildings in all.
How old are the homes in Helena?
22% of Helena’s homes were built before 1940 (Census estimate, ±2.2 points), against a typical 13% for a Montana town; the median home was built in 1974.
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 (13), the Library of Congress (1), Wikidata (3), the National Register of Historic Places (50), 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.
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