Chg.
| Population Counts by Decade | |||
| Population | Numerical Chg. | Pct. Chg. | |
| 1950 | 3,934,000 | NA | NA |
| 1960 | 4,662,000 | 728,000 | 18.5% |
| 1970 | 5,195,392 | 533,392 | 11.4% |
| 1980 | 5,490,224 | 294,832 | 5.7% |
| 1990 | 5,544,156 | 53,932 | 1.0% |
| 2000 | 6,080,827 | 536,671 | 9.7% |
| 2010 | 6,484,050 | 403,223 | 6.6% |
| 2020 | 20,362,612 | 13,878,562 | 214.0% |