Delaware - Population
| Date | Density | Population |
|---|---|---|
| 2023 | 160 | 1,031,890 |
| 2022 | 158 | 1,019,459 |
| 2021 | 156 | 1,004,881 |
| 2020 | 154 | 991,862 |
| 2019 | 152 | 981,297 |
| 2018 | 151 | 971,072 |
| 2017 | 149 | 961,499 |
| 2016 | 148 | 953,030 |
| 2015 | 147 | 944,596 |
| 2014 | 145 | 935,160 |
| 2013 | 144 | 925,599 |
| 2012 | 142 | 916,572 |
| 2011 | 141 | 908,169 |
| 2010 | 140 | 899,762 |
| 2009 | 138 | 891,730 |
| 2008 | 137 | 883,874 |
| 2007 | 135 | 871,749 |
| 2006 | 133 | 859,268 |
| 2005 | 131 | 845,150 |
| 2004 | 129 | 830,803 |
| 2003 | 127 | 818,003 |
| 2002 | 125 | 806,169 |
| 2001 | 123 | 795,699 |
| 2000 | 122 | 786,373 |
| 1999 | 120 | 774,990 |
| 1998 | 118 | 763,335 |
| 1997 | 117 | 751,487 |
| 1996 | 115 | 740,977 |
| 1995 | 113 | 729,734 |
| 1994 | 111 | 717,545 |
| 1993 | 110 | 706,378 |
| 1992 | 108 | 694,925 |
| 1991 | 106 | 683,080 |
| 1990 | 104 | 669,567 |
| 1989 | 102 | 658,274 |
| 1988 | 100 | 647,621 |
| 1987 | 99 | 636,946 |
| 1986 | 97 | 627,559 |
| 1985 | 96 | 618,279 |
| 1984 | 95 | 611,565 |
| 1983 | 94 | 605,459 |
| 1982 | 93 | 599,148 |
| 1981 | 92 | 595,974 |
| 1980 | 92 | 594,919 |
| 1979 | 93 | 598,830 |
| 1978 | 93 | 598,188 |
| 1977 | 92 | 594,821 |
| 1976 | 92 | 592,755 |
| 1975 | 91 | 588,756 |
| 1974 | 90 | 583,150 |
| 1973 | 90 | 579,078 |
| 1972 | 89 | 573,821 |
| 1971 | 88 | 565,207 |
| 1970 | 85 | 550,332 |
| 1969 | 84 | 540,000 |
| 1968 | 83 | 534,000 |
| 1967 | 81 | 525,000 |
| 1966 | 80 | 516,000 |
| 1965 | 79 | 507,000 |
| 1964 | 77 | 497,000 |
| 1963 | 75 | 483,000 |
| 1962 | 73 | 469,000 |
| 1961 | 72 | 461,000 |
| 1960 | 70 | 449,000 |
| 1959 | 68 | 441,000 |
| 1958 | 67 | 433,000 |
| 1957 | 66 | 426,000 |
| 1956 | 63 | 408,000 |
| 1955 | 60 | 389,000 |
| 1954 | 57 | 368,000 |
| 1953 | 54 | 351,000 |
| 1952 | 53 | 341,000 |
| 1951 | 51 | 331,000 |
| 1950 | 50 | 321,000 |
| 1949 | 49 | 316,000 |
| 1948 | 48 | 312,000 |
| 1947 | 47 | 306,000 |
| 1946 | 47 | 300,000 |
| 1945 | 44 | 286,000 |
| 1944 | 44 | 286,000 |
| 1943 | 44 | 281,000 |
| 1942 | 44 | 281,000 |
| 1941 | 43 | 276,000 |
| 1940 | 42 | 269,000 |
| 1939 | 41 | 263,000 |
| 1938 | 40 | 257,000 |
| 1937 | 39 | 254,000 |
| 1936 | 39 | 253,000 |
| 1935 | 39 | 252,000 |
| 1934 | 39 | 250,000 |
| 1933 | 38 | 248,000 |
| 1932 | 38 | 245,000 |
| 1931 | 38 | 242,000 |
| 1930 | 37 | 239,000 |
| 1929 | 37 | 236,000 |