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History · Trinidad

Trinidad’s post office opened in 1851, and 14% of its homes were built before 1940

2 places in town are on the National Register, among them a historic district with 1 buildings. Below: 5 old photos and papers, maps from 1945 on, and the census since 1880.

1851first post office
2on the National Register
14%homes built before 1940
5old photos & papers
From Trinidad’s archive · credits on each photo
Quick answers

How Trinidad began

When was Trinidad founded?

1851

The Trinidad post office opened in 1851, the earliest record of the town by name. Wikidata gives 1870.

First census: 104 in 18802020 census: 307175 years
Founding year: the first Trinidad post office (Blevins & Helbock, CC0). Wikidata: 1870.The full story ↓
The story

How Trinidad came to be

From Wikipedia’s history of Trinidad.

Read it all →

The Yurok people established the village of Tsurai on bluffs overlooking Trinidad Bay in prehistoric times. They occupied the village for thousands of years before vacating it in 1916.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Trinidad in 1891

Passages that mention Trinidad, cut from the printed page as they were published.

In the year 1802 there resided in the town of Galway a physician named Lynch, whose brother-in-law, Mr. Nicholas Lynch, had some time previously settled in Trinidad. In 1801 Nicholas Lynch paid a visit to his relations in Ireland and described to his brother-in-law, in very glowing terms, the advan…
History of Trinidad ..1891 · page 145Read the page →
Read the text

In the year 1802 there resided in the town of Galway a physician named Lynch, whose brother-in-law, Mr. Nicholas Lynch, had some time previously settled in Trinidad. In 1801 Nicholas Lynch paid a visit to his relations in Ireland and described to his brother-in-law, in very glowing terms, the advantages he would reap if he abandoned the scanty emoluments of a country Doctor in the West of Ireland, and establish himself in Trinidad, where, at that time, duly qualified medical men were very rarely met with.

Text read by machine from the scan; it may contain errors.
The Island of Trinidad, at that period, formed part of the Diocese of Guayana, which was created by Pope Pius VI. in May, 1790, and which included, besides Trinidad, the Island of Margarita and the Provinces of Guayana and Cumana. When the Island was captured by the British, the See was occupied by…
History of Trinidad ..1891 · page 163Read the page →
Read the text

The Island of Trinidad, at that period, formed part of the Diocese of Guayana, which was created by Pope Pius VI. in May, 1790, and which included, besides Trinidad, the Island of Margarita and the Provinces of Guayana and Cumana. When the Island was captured by the British, the See was occupied by the Right Reverend Doctor Francisco de Ibarra, who was succeeded, in 1801, by the Right Reverend Jose Antonio Mohedano, by whom the following letter was addressed to the Governor of Trinidad : —

Text read by machine from the scan; it may contain errors.

Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.

Timeline

Trinidad, 1851 to 1980

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

  1. 19th century
  2. 1851Post officeThe Trinidad post office opens
  3. 1866BuiltTrinidad Head Light Station is built
  4. 20th century
  5. 1913In the archiveTrinidad School in 1913
  6. 1923In the archiveThe smelt fisher--Trinidad Yurok
  7. 1945On the mapFirst mapped by the U.S. Geological Survey
  8. 1980In the archiveReplica of Trinidad Head Light in northern California
By decade

Trinidad, decade by decade

3 decades in the archive, from the 1910s to the 1980s. Scroll each row; tap a photo for its story.

On the map

Trinidad on the map, 1945 to 1966

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

Trinidad on the 1945 USGS mapTrinidad on the 1952 USGS mapTrinidad on the 1966 USGS map1945Trinidad 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 Trinidad.

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.

Trinidad School in 1913
Retake this viewTrinidad School in 1913, 1913

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

Retake this view · +15
On the National Register

2 historic places in Trinidad

The country’s official list of buildings and places worth saving.

places listed
2
National Historic Landmarks
0
none yet
historic buildings protected
2
each building in a district counts
first listed
1980
Holy Trinity Church
BuildingsDistricts

Architectural styles listings

Lighthouse1

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

People over time

Trinidad, census by census

010020030040018801900192019401960198020002020Peak: 379

Between 94 and 379 people in every census since 1880.

11 censuses, 1880–2020.

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

Places that used to be

Old corners and burying grounds

Trinidad’s post office has been open since 1851.

Hamlets and corners on the map
Tsurau
1cemetery inside Trinidad
Trinidad

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Help out

Finish Trinidad’s story

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

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

Questions about Trinidad’s history

What year was Trinidad founded?

The Trinidad post office opened in 1851, the earliest record of the town by name (U.S. post office records). Wikidata gives 1870.

What is on the National Register in Trinidad?

Two places: the Holy Trinity Church (listed 1980) and the Trinidad Head Light Station (1991).

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). How TownRatings grades history →

From Wikimedia Commons (7), the Library of Congress (17), the National Register of Historic Places (2), Wikipedia, 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 old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.