Trinity County, California
Trinity County: county in northwestern California, United States
About
Trinity County is a county located in the U.S. state of California. As of the 2010 census, the population was 13,786 and a population density of 2 people per km². After 10 years in 2020 county had an estimated population of 12,216 inhabitants. Its county seat is Weaverville. The county was created 176 years ago in 1849.
County Snapshot
Trinity County at a glance
Trinity County currently has 2 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.
Mapped populated places
2
These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.
California counties
58
Open related pagesLargest city
WeavervillePopulation 3,600
Top linked places
Quick Facts about Trinity County
| Population | 12,216 (2020) |
| Country | United States of America |
| State | California (United States) |
| Different from | Trinity County |
| Area | 8307 km2 |
| Water as percent of area | 0.9% |
| Land as percent of area | 99.1% |
| Latitude & Longitude | 40.6507,-123.1126 |
| Named for | Trinity River |
| Altitude | 2,799 feet / 853 meters |
| Capital | Weaverville |
| Establishment | January 01, 1850 |
| Time Zone | America/Los_Angeles |
| Local time | 01:39:02 (17th April 2026) |
| Density | 1 Pop. per km² as of 2020 |
| Population growth | -12.85% (2010-2020) |
| Weather | 34℉ Mostly Clear 7-days weather |
Geography
Trinity County is located at 40°39'2"N 123°6'45"W (40.6506900, -123.1126300). It has 5 neighbors: Mendocino County, Humboldt County, Shasta County, Siskiyou County and Tehama County.
Trinity County map
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Trinity County Populated Places
Cities, towns, neighborhoods & other populated places in Trinity County.
| City Name | Population | Title |
|---|---|---|
| Weaverville | 3,600 | California |
| Hayfork | 2,368 | Census-designated place in Trinity County, California |
Weather
Mostly clear, with a low around 34.
7-Day ForecastOfficial website of Trinity County
Official Website- Weaverville
Demographics
According to census records, the population of Trinity County decreased by 12.85% in 10 years.
| Year | Population | % Change | Method |
|---|---|---|---|
| 2010 | 13,786 | - | census |
| 2011 | 13,685 | -0.74% | estimation process |
| 2012 | 13,489 | -1.45% | estimation process |
| 2013 | 13,427 | -0.46% | estimation process |
| 2014 | 13,128 | -2.28% | estimation process |
| 2015 | 13,094 | -0.26% | estimation process |
| 2016 | 12,828 | -2.07% | estimation process |
| 2017 | 12,726 | -0.8% | estimation process |
| 2018 | 12,567 | -1.27% | estimation process |
| 2019 | 12,285 | -2.3% | estimation process |
| 2020 | 12,216 | -0.56% | estimation process |
People born in Trinity County (2)
People born in Trinity County, including Criminal, author, and recipient of Presidential pardon, from the U.S. state of Oregon. Stephen Arnold Douglas Puter, judge Jesse W. Carter, .
More notable people
Other places with the same name (1)
- Trinity County, Texas county in Texas, United States with a population of 14,883 people.
California Other Counties (more counties)
| County Name | Population | Title |
|---|---|---|
| Los Angeles County | 9,943,046 | County in California, United States of America |
| Los Angeles | 3,970,219 | The second most populous city in the United States and the center of the Los Angeles metropolitan area. |
| San Diego County | 3,332,427 | Founded in 1850, is one of 58 counties in the US state of California. |
| Orange County | 3,166,857 | County in California, United States |
| Riverside County | 2,489,188 | County in California, United States |
| San Bernardino County | 2,189,183 | County in California, United States |
| Santa Clara County | 1,907,105 | County in California, United States |
| Alameda County | 1,662,323 | County in California, United States |
| Sacramento County | 1,559,146 | County in California, United States |
| San Diego | 1,422,420 | The eighth most populous city in the United States and the center of the San Diego metropolitan area. |
| Laguna | 1,370,232 | A city located in Orange County, California. |
| Contra Costa County | 1,152,333 | County in California, United States |
| San Jose | 1,013,616 | The tenth most populous city in the United States and the center of the San Jose metropolitan area. |
| Fresno County | 1,000,918 | County in California, United States |
| Kern County | 901,362 | This county is located in the southern San Joaquin Valley, extending eastward over the Tehachapi Mountains to the Mojave Desert. |
| San Francisco County | 866,606 | County, coextensive with the city of San Francisco, California, United States |