Idaho Population 1900-2020

Chart and table of population level and growth rate for the state of Idaho from 1900 to 2020.
  • The population of Idaho in 2020 was 1,826,913, a 2.12% 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.
  • The population of Idaho in 2017 was 1,719,745, a 2.12% increase from 2016.
Data Source: U.S. Census Bureau - Population Estimates

MLA Citation:
State Population Ranking
State Name Population
California 39,368,078
Texas 29,360,759
Florida 21,733,312
New York 19,336,776
Pennsylvania 12,783,254
Illinois 12,587,530
Ohio 11,693,217
Georgia 10,617,423
North Carolina 10,600,823
Michigan 9,966,555
New Jersey 8,882,371
Virginia 8,590,563
Washington 7,693,612
Arizona 7,421,401
Massachusetts 6,893,574
Tennessee 6,886,834
Indiana 6,754,953
Missouri 6,151,548
Maryland 6,045,680
Wisconsin 5,832,655
Colorado 5,807,719
Minnesota 5,657,342
South Carolina 5,218,040
Alabama 4,921,532
Louisiana 4,645,318
Kentucky 4,477,251
Oregon 4,217,737
Oklahoma 3,980,783
Connecticut 3,557,006
Utah 3,205,958
Iowa 3,163,561
Nevada 3,138,259
Arkansas 3,017,804
Mississippi 2,966,786
Kansas 2,913,805
New Mexico 2,096,829
Nebraska 1,937,552
Idaho 1,826,913
West Virginia 1,784,787
Hawaii 1,407,006
New Hampshire 1,366,275
Maine 1,350,141
Montana 1,080,577
Rhode Island 1,057,125
Delaware 986,809
North Dakota 765,309
Alaska 731,158
Wyoming 582,328
Idaho - Historical Population Data
Year Population Growth Rate
2020 1,826,913 2.12%
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%