Trinity County Population 2018

Trinity County's estimated population is 12,709 with a growth rate of -1.01% in the past year according to the most recent United States census data. Trinity County is the 55th largest county in California.

Year Population Growth Growth Rate
201712,709-130-1.01%
201612,839-253-1.93%
201513,092-30-0.23%
201413,122-300-2.24%
201313,422-60-0.45%
201213,482-195-1.43%
201113,677-72-0.52%
201013,7496865.25%
199013,0631,20510.16%
198011,8584,24355.72%
19707,615-2,091-21.54%
19609,7064,61990.80%
19505,0871,11728.14%
19403,9701,16141.33%
19302,80925810.11%
19202,551-750-22.72%
19103,301-1,082-24.69%
19004,38366417.85%
18903,719-1,280-25.61%
18804,9991,78655.59%
18703,213-1,912-37.31%
18605,1253,490213.46%
18501,6350.00%

Trinity County Population Growth

Population Data via

Trinity County Race Data

Race Population Percentage
White11,54090.80%
Two or More Races6555.15%
American Indian and Alaska Native6445.07%
Asian1250.98%
Black or African American810.64%
Native Hawaiian and Other Pacific Islander230.18%

Trinity County Population Pyramid

0k0k0k0k0k1k1k1k Male Population0k0k0k0k0k1k1k1k Female Population8580757065605550454035302520151050
Data Sources
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990