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C−History
History · Los Molinos

Los Molinos’ post office opened in 1905, and 15% of its homes were built before 1940

More historic than 23% of U.S. towns. What drives it

Below: maps from 1905 on and the census since 1980.

1905first post office
0on the National Register
15%homes built before 1940
1famous people
Quick answers

How Los Molinos began

When was Los Molinos founded?

1905

The Los Molinos post office opened in 1905, the earliest record of the town by name.

First census: 1,241 in 19802020 census: 2,098121 years

How historic is Los Molinos?

C−

More historic than 23% of U.S. towns, on its age, its old homes and the National Register.

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

What drives Los Molinos’ History grade

On its age, its old homes and the National Register, Los Molinos is more historic than 23% of U.S. towns. Its share of homes from before 1940 holds the grade up; its age pulls it down.

C−
HistoryA character grade: shown, never part of Los Molinos’ overall grade.
All U.S. towns we grade (21,289)Ahead of 23%
NewerOlder

Few California towns list much on the Register (a typical California town has 0.0 per 10,000 residents, the U.S. 2.4), so Los Molinos’ 0.0 sits below most of its state (31% of California towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.

How sure. Graded on any two of the three inputs instead, the letter would range from D to C+. The pre-1940 share is a Census survey estimate (±11.3 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 Los Molinos’ past

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

★ What stands out · Help out

Start Los Molinos’s collection

The first neighbors to add old photos shape how Los Molinos’s history is told.

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

Los Molinos on the map, 1905 to 1969

Every edition of the U.S. Geological Survey’s map of Los Molinos. Tap a year, or press play to watch the town change.

Los Molinos on the 1905 USGS mapLos Molinos on the 1952 USGS mapLos Molinos on the 1969 USGS map1905Tehama 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 Los Molinos.

The story

How Los Molinos came to be

From Wikipedia’s history of Los Molinos.

Read it all →

Los Molinos ("the mills" in Spanish) traces its history back to a railroad station which opened at the site in 1905. A post office has been in operation at Los Molinos since 1905.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Los Molinos, 1905 to 1918

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

  1. 20th century
  2. 1905Post officeThe Los Molinos post office opens
  3. 1905On the mapFirst mapped by the U.S. Geological Survey
  4. 1918Born hereMarv Grissom is born here
By decade

Los Molinos, decade by decade

Every building

Los Molinos, building by building, 1914

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 sheet.

Los Molinos fire insurance map, 1914, sheet 11914Sheet 1 of 2

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

People over time

Los Molinos, census by census

05001,0001,5002,000198020002020Peak: 2,098

Between 1,241 and 2,098 people in every census since 1980.

5 censuses, 1980–2020.

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

Questions about Los Molinos’ history

What year was Los Molinos founded?

The Los Molinos post office opened in 1905, the earliest record of the town by name (U.S. post office records).

How does Los Molinos rank for history?

Los Molinos is more historic than 23% 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.

How old are the homes in Los Molinos?

15% of Los Molinos’ homes were built before 1940 (Census estimate, ±11.3 points), against a typical 3.4% for a California town; the median home was built in 1972.

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 Wikimedia Commons (3), the Library of Congress (5), 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.