Last official estimated population of Plumas County was 19,918 (year 2014)[1]. This was 0.006% of total US population and 0.1% of total California state population. Area of Plumas County is 2,613.4 mi² (=6768.8 km²), in this year population density was 7.62 p/mi². If population growth rate would be same as in period 2010-2014 (-0.11%/yr), Plumas County population in 2025 would be 19,675 [0].
Historical population of Plumas County for period 1860-2014 [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
[1860-1870] +0.29 %/yr
[1870-1880] +3.25 %/yr
[1880-1890] -2.23 %/yr
[1890-1900] -0.57 %/yr
[1900-1910] +1.22 %/yr
[1910-1920] +0.77 %/yr
[1920-1930] +3.37 %/yr
[1930-1940] +3.85 %/yr
[1940-1950] +1.59 %/yr
[1950-1960] -1.5 %/yr
[1960-1970] +0.07 %/yr
[1970-1980] +4.01 %/yr
[1980-1990] +1.3 %/yr
[1990-2000] +0.53 %/yr
[2000-2005] +0.18 %/yr
[2005-2010] -0.97 %/yr
[2010-2014] -0.11 %/yr
Looking for settlements in Plumas County? Visit this page: Settlements in Plumas County, CA
Population of Plumas County by age groups male (M) and female (F)[1b]
| Age Gr. | (M) | (F) | Total |
| 0 to 4 | 464 | 353 | 817 |
| 5 to 9 | 478 | 451 | 929 |
| 10 to 14 | 438 | 463 | 901 |
| 15 to 19 | 514 | 440 | 954 |
| 20 to 24 | 491 | 435 | 926 |
| 25 to 29 | 424 | 397 | 821 |
| 30 to 34 | 421 | 415 | 836 |
| 35 to 39 | 431 | 423 | 854 |
| 40 to 44 | 428 | 410 | 838 |
| 45 to 49 | 495 | 487 | 982 |
| 50 to 54 | 689 | 749 | 1,438 |
| 55 to 59 | 807 | 963 | 1,770 |
| 60 to 64 | 985 | 960 | 1,945 |
| 65 to 69 | 828 | 840 | 1,668 |
| 70 to 74 | 651 | 577 | 1,228 |
| 75 to 79 | 414 | 392 | 806 |
| 80 to 84 | 201 | 240 | 441 |
| 85+ | 172 | 280 | 452 |
Plumas 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 | 8782 | 8740 | 17,522 |
| NH | 8509 | 8529 | 17,038 |
| WA | 8474 | 8433 | 16,907 |
| NHWAC | 8054 | 8082 | 16,136 |
| NHWA | 7799 | 7821 | 15,620 |
| H | 822 | 746 | 1,568 |
| HWAC | 728 | 658 | 1,386 |
| HWA | 675 | 612 | 1,287 |
| IAC | 480 | 484 | 964 |
| NHIAC | 366 | 384 | 750 |
| TOM | 328 | 328 | 656 |
| IA | 295 | 294 | 589 |
| NHTOM | 274 | 281 | 555 |
| NHIA | 211 | 223 | 434 |
| BAC | 191 | 193 | 384 |
| NHBAC | 172 | 178 | 350 |
| AAC | 175 | 154 | 329 |
| NHAAC | 162 | 137 | 299 |
| BA | 106 | 114 | 220 |
| NHBA | 103 | 112 | 215 |
| HIAC | 114 | 100 | 214 |
| AA | 112 | 96 | 208 |
| NHAA | 107 | 83 | 190 |
| HIA | 84 | 71 | 155 |
| HTOM | 54 | 47 | 101 |
| NAC | 31 | 33 | 64 |
| NHNAC | 29 | 30 | 59 |
| HBAC | 19 | 15 | 34 |
| HAAC | 13 | 17 | 30 |
| NA | 16 | 10 | 26 |
| NHNA | 15 | 9 | 24 |
| HAA | 5 | 13 | 18 |
| HBA | 3 | 2 | 5 |
| HNAC | 2 | 3 | 5 |
| HNA | 1 | 1 | 2 |
• Washoe County population
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• Storey County
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[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
*Butte; Yuba California Notes
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