Colorado - Population
| Date | Density | Population |
|---|---|---|
| 1951 | 5 | 1,326,000 |
| 1950 | 5 | 1,325,000 |
| 1949 | 5 | 1,295,000 |
| 1948 | 5 | 1,263,000 |
| 1947 | 5 | 1,236,000 |
| 1946 | 4 | 1,196,000 |
| 1945 | 4 | 1,113,000 |
| 1944 | 4 | 1,124,000 |
| 1943 | 4 | 1,151,000 |
| 1942 | 4 | 1,133,000 |
| 1941 | 4 | 1,124,000 |
| 1940 | 4 | 1,130,000 |
| 1939 | 4 | 1,120,000 |
| 1938 | 4 | 1,112,000 |
| 1937 | 4 | 1,104,000 |
| 1936 | 4 | 1,090,000 |
| 1935 | 4 | 1,078,000 |
| 1934 | 4 | 1,075,000 |
| 1933 | 4 | 1,071,000 |
| 1932 | 4 | 1,066,000 |
| 1931 | 4 | 1,056,000 |
| 1930 | 4 | 1,040,000 |
| 1929 | 4 | 1,008,000 |