Idaho Population 1900-2021

Chart and table of population level and growth rate for the state of Idaho from 1900 to 2021.
  • The population of Idaho in 2021 was 1,900,923, a 2.88% increase from 2020.
  • The population of Idaho in 2020 was 1,847,772, a 3.28% increase from 2019.
  • The population of Idaho in 2019 was 1,789,060, a 2.11% increase from 2018.
  • The population of Idaho in 2018 was 1,752,074, a 1.88% increase from 2017.
Data Source: U.S. Census Bureau - Population Estimates

MLA Citation:
State Population Ranking
State Name Population
California 39,237,836
Texas 29,527,941
Florida 21,781,128
New York 19,835,913
Pennsylvania 12,964,056
Illinois 12,671,469
Ohio 11,780,017
Georgia 10,799,566
North Carolina 10,551,162
Michigan 10,050,811
New Jersey 9,267,130
Virginia 8,642,274
Washington 7,738,692
Arizona 7,276,316
Massachusetts 6,984,723
Tennessee 6,975,218
Indiana 6,805,985
Missouri 6,168,187
Maryland 6,165,129
Wisconsin 5,895,908
Colorado 5,812,069
Minnesota 5,707,390
South Carolina 5,190,705
Alabama 5,039,877
Louisiana 4,624,047
Kentucky 4,509,394
Oregon 4,246,155
Oklahoma 3,986,639
Connecticut 3,605,597
Utah 3,337,975
Iowa 3,193,079
Nevada 3,143,991
Arkansas 3,025,891
Mississippi 2,949,965
Kansas 2,934,582
New Mexico 2,115,877
Nebraska 1,963,692
Idaho 1,900,923
West Virginia 1,782,959
Hawaii 1,441,553
New Hampshire 1,388,992
Maine 1,372,247
Montana 1,104,271
Rhode Island 1,095,610
Delaware 1,003,384
North Dakota 774,948
Alaska 732,673
Wyoming 578,803
Idaho - Historical Population Data
Year Population Growth Rate
2021 1,900,923 2.88%
2020 1,847,772 3.28%
2019 1,789,060 2.11%
2018 1,752,074 1.88%
2017 1,719,745 2.12%
2016 1,684,036 1.91%
2015 1,652,495 1.24%
2014 1,632,248 1.25%
2013 1,612,053 1.01%
2012 1,595,910 0.73%
2011 1,584,272 0.86%
2010 1,570,819 1.05%
2009 1,554,439 1.31%
2008 1,534,320 1.94%
2007 1,505,105 2.48%
2006 1,468,669 2.83%
2005 1,428,241 2.62%
2004 1,391,802 2.08%
2003 1,363,380 1.72%
2002 1,340,372 1.55%
2001 1,319,962 1.58%
2000 1,299,430 3.81%
1999 1,251,700 1.69%
1998 1,230,923 1.68%
1997 1,210,638 1.93%
1996 1,187,706 1.95%
1995 1,165,000 2.60%
1994 1,135,459 3.11%
1993 1,101,204 3.25%
1992 1,066,490 2.65%
1991 1,038,915 2.67%
1990 1,011,882 1.76%
1989 994,416 0.89%
1988 985,664 0.07%
1987 984,997 -0.53%
1986 990,224 -0.38%
1985 994,051 0.32%
1984 990,839 0.91%
1983 981,869 0.84%
1982 973,721 1.20%
1981 962,204 1.50%
1980 947,983 1.65%
1979 932,627 2.41%
1978 910,690 3.08%
1977 883,469 3.09%
1976 856,983 3.00%
1975 831,982 2.97%
1974 807,990 3.31%
1973 782,074 2.47%
1972 763,237 3.31%
1971 738,753 3.61%
1970 713,015 0.85%
1969 707,000 1.73%
1968 695,000 1.02%
1967 688,000 -0.15%
1966 689,000 0.44%
1965 686,000 0.88%
1964 680,000 -0.44%
1963 683,000 -1.30%
1962 692,000 1.17%
1961 684,000 1.94%
1960 671,000 2.13%
1959 657,000 1.70%
1958 646,000 0.62%
1957 642,000 2.23%
1956 628,000 1.62%
1955 618,000 3.00%
1954 600,000 0.67%
1953 596,000 1.53%
1952 587,000 -0.34%
1951 589,000 -0.17%
1950 590,000 3.51%
1949 570,000 3.45%
1948 551,000 5.56%
1947 522,000 2.55%
1946 509,000 0.39%
1945 507,000 -4.16%
1944 529,000 5.80%
1943 500,000 4.60%
1942 478,000 -4.59%
1941 501,000 -4.02%
1940 522,000 0.19%
1939 521,000 1.56%
1938 513,000 1.18%
1937 507,000 2.42%
1936 495,000 2.91%
1935 481,000 1.69%
1934 473,000 1.94%
1933 464,000 1.09%
1932 459,000 1.10%
1931 454,000 1.57%
1930 447,000 0.00%
1929 447,000 -0.45%
1928 449,000 0.45%
1927 447,000 1.36%
1926 441,000 1.15%
1925 436,000 0.46%
1924 434,000 -0.46%
1923 436,000 0.00%
1922 436,000 0.23%
1921 435,000 0.46%
1920 433,000 2.12%
1919 424,000 4.69%
1918 405,000 -1.94%
1917 413,000 1.98%
1916 405,000 2.79%
1915 394,000 2.60%
1914 384,000 3.50%
1913 371,000 3.34%
1912 359,000 4.66%
1911 343,000 4.26%
1910 329,000 5.79%
1909 311,000 6.87%
1908 291,000 5.05%
1907 277,000 5.73%
1906 262,000 6.50%
1905 246,000 7.42%
1904 229,000 6.02%
1903 216,000 8.54%
1902 199,000 13.07%
1901 176,000 7.98%
1900 163,000 0.00%