Delaware - Population
| Date | Density | Population |
|---|---|---|
| 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 |