Population Estimates - Historical

Department of Finance Historical Population Estimates 4/1/2020 - 1/1/2025

City/County 4/1/2020 1/1/2021 1/1/2022 1/1/2023 1/1/2024 1/1/2025 1/1/26 1/1/27 1/1/28 1/1/29 1/1/30
Biggs 1,963 1,993 1,997 1,953 1,998 1,973
Chico 101,703 103,228 105,789 107,769 110,971 113,847
Gridley 7,326 7,484 7,416 7,243 7,383 7,302
Oroville 20,009 20,383 19,481 18,861 19,221 19,653
Paradise 4,710 6,075 7,787 9,291 10,283 11,088
Unincorporated 75,921 68,651 64,292 61,767 58,017 53,662
Incorporated 135,771 139,163 142,470 145,117 149,856 153,863
County Total 211,632 207,814 206,762 206,884 207,873 207,525

Source: State of California, Department of Finance, E-4 Population Estimates for Cities, Counties and the State, 2021-2025, with 2020 Benchmark. Sacramento, California, May 2025

 

Department of Finance Historical Population Estimates 4/1/2010 - 1/1/2020

City/County 4/1/2010 1/1/2011 1/1/2012 1/1/2013 1/1/2014 1/1/2015 1/1/2016 1/1/2017 1/1/2018 1/1/2019 1/1/2020
Biggs 1,707 1,711 1,707 1,740 1,738 1,796 1,942 1,952 1,966 2,057 1,852
Chico 86,187 86,707 87,523 88,127 88,785 89,615 90,007 91,166 92,040 110,126 110,364
Gridley 6,584 6,595 6,592 6,808 6,827 6,835 6,833 6,874 6,918 7,205 6,515
Oroville 15,546 15,528 15,581 16,136 16,142 16,270 18,087 18,101 18,075 20,794 18,888
Paradise 26,218 26,273 26,174 26,152 26,165 26,184 26,290 26,424 26,581 4,474 4,608
Unincorporated 83,758 84,012 83,763 83,411 83,331 83,220 80,827 80,951 80,518 76,199 66,724
Incorporated 136,242 136,814 137,577 138,963 139,657 140,700 143,159 144,517 145,580 144,656 142,227
County Total 220,000 220,826 221,340 222,374 222,988 223,920 223,986 225,468 226,098 220,855 208,951

Source: State of California, Department of Finance, E-4 Population Estimates for Cities, Counties and the State, 2011-2021, with 2010 Benchmark. Sacramento, California, May 2021

 

Department of Finance Historical Population Estimates 1/1/2001 - 1/1/2010

City/County 1/1/2001 1/1/2002 1/1/2003 1/1/2004 1/1/2005 1/1/2006 1/1/2007 1/1/2008 1/1/2009 1/1/2010
Biggs 1,786 1,786 1,783 1,770 1,747 1,722 1,714 1,702 1,705 1,711
Chico 64,810 66,481 67,862 70,322 72,459 77,348 82,784 85,034 85,739 86,136
Gridley 5,531 5,694 5,796 5,806 5,761 5,989 6,250 6,466 6,532 6,589
Oroville 13,053 13,201 13,481 13,631 13,762 13,961 14,998 15,063 15,377 15,529
Paradise 26,412 26,510 26,598 26,593 26,403 26,264 26,160 26,086 26,146 26,188
Unincorporated 92,999 93,270 93,869 93,297 92,823 89,406 84,495 83,450 83,388 83,814
Incorporated 111,592 113,672 115,520 118,122 120,132 125,284 131,906 134,351 135,499 136,153
County Total 204,591 206,942 209,389 211,419 212,955 214,690 218,180 217,801 218,887 219,967

Source: State of California, Department of Finance, E-4 Population Estimates for Cities, Counties and the State, 2001-2010, with 2000 & 2010 Census Counts. Sacramento, California, August 2011

Department of Finance Historical Population Estimates 4/1/1990 - 1/1/2000

City/County 4/1/1990 1/1/1991 1/1/1992 1/1/1993 1/1/1994 1/1/1995 1/1/1996 1/1/1997 1/1/1998 1/1/1999 1/1/2000
Biggs 1,581 1,630 1,630 1,620 1,610 1,640 1,640 1,670 1,670 1,740 1,750
Chico 39,970 40,700 42,850 44,200 44,850 46,250 47,050 49,700 52,100 53,600 55,400
Gridley 4,631 4,640 4,670 4,650 4,700 4,760 4,760 4,830 4,850 4,990 5,050
Oroville 11,885 12,100 12,000 12,050 12,100 12,200 12,400 12,400 12,450 12,550 12,650
Paradise 25,401 25,500 25,550 25,600 25,800 25,800 25,850 25,850 26,050 26,000 26,300
Unincorporated 98,652 100,300 101,100 102,200 103,400 104,000 104,600 103,000 102,000 101,200 102,900
Incorporated 83,468 84,570 86,700 88,120 89,060 90,650 91,700 94,450 97,120 98,880 101,150
County Total 182,120 184,900 187,800 190,300 192,500 194,700 196,300 197,500 199,100 200,200 204,000