Trinity County CA Information


Trinity County Subdivisions

Trinity County CA Data & Demographics (As of July 1, 2017)


Total Population 13,367
Daytime Population: Workers 5,649
Daytime Population: Residents 7,876
Total Daytime Population (TDP) 13,525
Ratio TDP/Total Population1 1.01
Population in Households 12,982
Population in Familes 9,541
Population in Group Qrtrs 385
Population Density2 4
Diversity Index3 36


Median Household Income $40,307
Average Household Income $61,377
Per Capita Income $27,564


Total Housing Units 8,681 (100%)
Owner Occupied HU 4,072 (46.9%)
Renter Occupied HU 1,822 (21.0%)
Vacant Housing Units 2,787 (32.1%)
Median Home Value $265,798
Average Home Value $301,676


Total Households 5,894
Average Household Size 2.2
Family Households 3,506
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population -0.42% -0.65%
Households -0.43% -0.67%
Families -0.44% -0.68%
Median Household Income   1.13%
Per Capita Income   2.21%


Trinity County CA - Peer Comparisons by Rank and Percentile

The table below compares Trinity County to the other 58 counties and county equivalents in California by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 55 7th
Population Density # 54 9th
Diversity Index # 55 7th
Median Household Income # 52 12th
Per Capita Income # 31 48th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.