Last official estimated population of Siskiyou County was 44,971 (year 2014)[1]. This was 0.014% of total US population and 0.1% of total California state population. Area of Siskiyou County is 6,347.3 mi² (=16439.5 km²), in this year population density was 7.09 p/mi². If population growth rate would be same as in period 2010-2014 (+0.04%/yr), Siskiyou County population in 2025 would be 45,167 [0].
Historical population of Siskiyou 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] -1.07 %/yr
[1870-1880] +2.32 %/yr
[1880-1890] +3.52 %/yr
[1890-1900] +3.38 %/yr
[1900-1910] +1.03 %/yr
[1910-1920] -0.14 %/yr
[1920-1930] +3.23 %/yr
[1930-1940] +1.16 %/yr
[1940-1950] +0.72 %/yr
[1950-1960] +0.68 %/yr
[1960-1970] +0.1 %/yr
[1970-1980] +1.8 %/yr
[1980-1990] +0.92 %/yr
[1990-2000] +0.18 %/yr
[2000-2005] +0.15 %/yr
[2005-2010] +0.12 %/yr
[2010-2014] +0.04 %/yr
Looking for settlements in Siskiyou County? Visit this page: Settlements in Siskiyou County, CA
Population of Siskiyou County by age groups male (M) and female (F)[1b]
Age Gr. | (M) | (F) | Total |
0 to 4 | 1098 | 1241 | 2,339 |
5 to 9 | 1280 | 1190 | 2,470 |
10 to 14 | 1216 | 1233 | 2,449 |
15 to 19 | 1317 | 1190 | 2,507 |
20 to 24 | 1193 | 1051 | 2,244 |
25 to 29 | 1140 | 1032 | 2,172 |
30 to 34 | 1144 | 1127 | 2,271 |
35 to 39 | 1035 | 964 | 1,999 |
40 to 44 | 1116 | 1058 | 2,174 |
45 to 49 | 1111 | 1186 | 2,297 |
50 to 54 | 1520 | 1591 | 3,111 |
55 to 59 | 1790 | 1986 | 3,776 |
60 to 64 | 1878 | 2056 | 3,934 |
65 to 69 | 1794 | 1733 | 3,527 |
70 to 74 | 1318 | 1210 | 2,528 |
75 to 79 | 780 | 790 | 1,570 |
80 to 84 | 491 | 603 | 1,094 |
85+ | 442 | 724 | 1,166 |
Siskiyou 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 | 19820 | 20219 | 40,039 |
NH | 19025 | 19402 | 38,427 |
WA | 18872 | 19180 | 38,052 |
NHWAC | 17480 | 17964 | 35,444 |
NHWA | 16717 | 17096 | 33,813 |
H | 2638 | 2563 | 5,201 |
HWAC | 2340 | 2255 | 4,595 |
HWA | 2155 | 2084 | 4,239 |
IAC | 1706 | 1754 | 3,460 |
NHIAC | 1331 | 1387 | 2,718 |
TOM | 1046 | 1140 | 2,186 |
IA | 1037 | 1024 | 2,061 |
NHTOM | 842 | 950 | 1,792 |
NHIA | 813 | 796 | 1,609 |
BAC | 582 | 484 | 1,066 |
AAC | 483 | 558 | 1,041 |
NHAAC | 450 | 516 | 966 |
NHBAC | 528 | 425 | 953 |
HIAC | 375 | 367 | 742 |
BA | 365 | 255 | 620 |
AA | 270 | 314 | 584 |
NHBA | 348 | 232 | 580 |
NHAA | 258 | 296 | 554 |
HIA | 224 | 228 | 452 |
HTOM | 204 | 190 | 394 |
NAC | 149 | 139 | 288 |
NHNAC | 108 | 107 | 215 |
NA | 73 | 52 | 125 |
HBAC | 54 | 59 | 113 |
NHNA | 47 | 32 | 79 |
HAAC | 33 | 42 | 75 |
HNAC | 41 | 32 | 73 |
HNA | 26 | 20 | 46 |
HBA | 17 | 23 | 40 |
HAA | 12 | 18 | 30 |
• Jackson County population
57.4 mi, 352°
• Shasta County
62.6 mi, 155°
• Humboldt County
94.6 mi, 229°
• Josephine County
76.7 mi, 315°
• Klamath County
88.3 mi, 30°
• Tehama County
102.2 mi, 171°
• Del Norte County
75.5 mi, 278°
• Curry County
105.3 mi, 305°
• Trinity County
71.7 mi, 204°
• Modoc County
93.8 mi, 89°
[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
*Shasta, Trinity California Notes
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