Guest, Sign inJoin

Post to Trinity Center

We’ll email a one-tap link to publish your post. No password, and nothing is public until you click it.
Already a member? Sign in
–Not graded
History · Trinity Center

Trinity Center’s post office opened in 1894

Most of Trinity Center was built recently: 7% of its homes predate 1940 and the median home dates from 1979. Below: maps from 1950 on and the census since 1860.

1894first post office
0on the National Register
7%homes built before 1940
Quick answers

How Trinity Center began

When was Trinity Center founded?

1894

The Trinity Center post office opened in 1894, the earliest record of the town by name. Another post office, Trinity Centre (1855), opened inside today’s town and later closed.

First census: 240 in 18602020 census: 198132 years
Founding year: the first Trinity Center post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Trinity Center’s past

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

★ What stands out · Help out

Start Trinity Center’s collection

The first neighbors to add old photos shape how Trinity Center’s history is told.

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

How Trinity Center came to be

From Wikipedia’s history of Trinity Center.

Read it all →

The original town of Trinity Center was established in 1851 as a stage stop for travelers headed further north and now lies beneath the lake, which came into existence after the construction of the Trinity River Dam in 1961. A handful of buildings were moved to the town's present day location, including the I.O.O.F. building and several residences. Trinity Center was a gold mining town, as was shown by the mine tailings left at the north end of the lake.

Text from Wikipedia, licensed CC BY-SA 4.0.

Timeline

Trinity Center, 1855 to 1950

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

  1. 19th century
  2. 1855Post officeThe Trinity Centre post office opens
  3. 1894Post officeThe Trinity Centre post office closes
  4. 1894Post officeThe Trinity Center post office opens
  5. 20th century
  6. 1950On the mapFirst mapped by the U.S. Geological Survey
By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

Be the first to add onePhotograph a print flat, in daylight, no flash.
Add from your album
On the map

Trinity Center on the map, 1950 to 1998

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

Trinity Center on the 1950 USGS mapTrinity Center on the 1967 USGS mapTrinity Center on the 1982 USGS mapTrinity Center on the 1998 USGS map1950Schell Mtn 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 Trinity Center.

People over time

Trinity Center, census by census

0100200190019502000Peak: 267

Between 160 and 267 people in every census since 1860.

4 censuses, 1860–2020.

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

Famous people

Famous people close to Trinity Center

Nobody well known was born in Trinity Center itself, so here are the best known from just nearby.

See all →
Places that used to be

Lost post offices

Trinity Center’s post office has been open since 1894. Another post office, Trinity Centre, opened and closed inside today’s town.

Trinity Centre
1855–1894
Trinity Center
1894–today
18501940today

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

Questions about Trinity Center’s history

What year was Trinity Center founded?

The Trinity Center post office opened in 1894, the earliest record of the town by name (U.S. post office records).

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 Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.