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.
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.
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.
Every edition of the U.S. Geological Survey’s map of Trinity Center. Tap a year, or press play to watch the town change.
1950Schell 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
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.
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.