Last official estimated population of Trinity County was 13,755 (year 2014)[1]. This was 0.004% of total US population and 0% of total California state population. Area of Trinity County is 3,207.6 mi² (=8307.7 km²), in this year population density was 4.29 p/mi². If population growth rate would be same as in period 2010-2014 (-0.06%/yr), Trinity County population in 2024 would be 13,678 [0].
Historical population of Trinity County for period 1850-2014 [1] , [2] , [3]:
Estimated population for 2014[1]. Population density is in p./sq.mi [4]. Changes are for period 2010-2015. Value is %/year. Boundary lines are approx. 2012 [5]. Click on flag to hide it.
Population • Density • Changes • Legends • Position
[1850-1860] +12.1 %/yr
[1860-1870] -4.56 %/yr
[1870-1880] +4.52 %/yr
[1880-1890] -2.91 %/yr
[1890-1900] +1.66 %/yr
[1900-1910] -2.8 %/yr
[1910-1920] -2.54 %/yr
[1920-1930] +0.97 %/yr
[1930-1940] +3.52 %/yr
[1940-1950] +2.51 %/yr
[1950-1960] +6.67 %/yr
[1960-1970] -2.4 %/yr
[1970-1980] +4.53 %/yr
[1980-1990] +0.97 %/yr
[1990-2000] -0.04 %/yr
[2000-2005] +0.65 %/yr
[2005-2010] +0.51 %/yr
[2010-2014] -0.06 %/yr
Looking for settlements in Trinity County? Visit this page: Settlements in Trinity County, CA
Population of Trinity County by age groups male (M) and female (F)[1b]
Age Gr. | (M) | (F) | Total |
0 to 4 | 313 | 335 | 648 |
5 to 9 | 298 | 287 | 585 |
10 to 14 | 312 | 279 | 591 |
15 to 19 | 318 | 341 | 659 |
20 to 24 | 309 | 282 | 591 |
25 to 29 | 283 | 244 | 527 |
30 to 34 | 365 | 301 | 666 |
35 to 39 | 303 | 313 | 616 |
40 to 44 | 346 | 304 | 650 |
45 to 49 | 386 | 340 | 726 |
50 to 54 | 538 | 552 | 1,090 |
55 to 59 | 600 | 690 | 1,290 |
60 to 64 | 709 | 667 | 1,376 |
65 to 69 | 611 | 538 | 1,149 |
70 to 74 | 444 | 372 | 816 |
75 to 79 | 289 | 238 | 527 |
80 to 84 | 171 | 223 | 394 |
85+ | 121 | 148 | 269 |
Trinity County resident population estimates by Sex, Race, and Hispanic Origin[1b]. For full list of abbrevations see: population.us/about page.
Race | Male | Female | Total |
WAC | 6224 | 5989 | 12,213 |
NH | 6219 | 5993 | 12,212 |
WA | 5902 | 5680 | 11,582 |
NHWAC | 5819 | 5604 | 11,423 |
NHWA | 5543 | 5329 | 10,872 |
IAC | 586 | 560 | 1,146 |
NHIAC | 481 | 480 | 961 |
H | 497 | 461 | 958 |
HWAC | 405 | 385 | 790 |
HWA | 359 | 351 | 710 |
IA | 358 | 335 | 693 |
TOM | 346 | 334 | 680 |
NHTOM | 296 | 297 | 593 |
NHIA | 279 | 273 | 552 |
AAC | 104 | 134 | 238 |
NHAAC | 94 | 124 | 218 |
BAC | 122 | 81 | 203 |
HIAC | 105 | 80 | 185 |
NHBAC | 98 | 61 | 159 |
HIA | 79 | 62 | 141 |
AA | 46 | 76 | 122 |
NHAA | 44 | 72 | 116 |
HTOM | 50 | 37 | 87 |
BA | 51 | 20 | 71 |
NAC | 37 | 31 | 68 |
NHNAC | 34 | 28 | 62 |
NHBA | 44 | 15 | 59 |
HBAC | 24 | 20 | 44 |
NA | 13 | 9 | 22 |
NHNA | 13 | 7 | 20 |
HAAC | 10 | 10 | 20 |
HBA | 7 | 5 | 12 |
HNAC | 3 | 3 | 6 |
HAA | 2 | 4 | 6 |
HNA | 0 | 2 | 2 |
• Butte County population
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56.6 mi, 82°
• Humboldt County
42.7 mi, 275°
• Mendocino County
85.7 mi, 191°
• Lake County
109 mi, 169°
• Tehama County
58.8 mi, 127°
• Siskiyou County
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• Del Norte County
88.5 mi, 329°
• Glenn County
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• Colusa County
111.7 mi, 155°
[0] Calculated by population.us from last known population growth rate, not official data.
[1] County population - 2014, archived from the original, retrieved 02/23/2016
[1b] Annual County Resident Population Estimates by Age, Sex, Race, and Hispanic Origin, (used only data for 2014) archived from the original, retrieved 02/23/2016
[2] County population - 2000-2010, archived from the original, retrieved 02/23/2016
[3] Population of States and Counties of the United States: 1790 to 1992, PDF, 15 Mb, census.gov, retrieved 02/23/2016
[4] County area, latitude longitude data, retrieved 02/23/2016
[5] County boundaries, CSV files on boundaries.us, retrived 03/18/2016
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