Denver County Population 2018
Denver County's estimated population is 704,621 with a growth rate of 1.42% in the past year according to the most recent United States census data. Denver County is the 1st largest county in Colorado.
| Year | Population | Growth | Growth Rate |
| 2017 | 704,621 | 9,844 | 1.42% |
| 2016 | 694,777 | 13,159 | 1.93% |
| 2015 | 681,618 | 18,347 | 2.77% |
| 2014 | 663,271 | 15,222 | 2.35% |
| 2013 | 648,049 | 14,251 | 2.25% |
| 2012 | 633,798 | 14,442 | 2.33% |
| 2011 | 619,356 | 16,138 | 2.68% |
| 2010 | 603,218 | 135,608 | 29.00% |
| 1990 | 467,610 | -24,755 | -5.03% |
| 1980 | 492,365 | -22,313 | -4.34% |
| 1970 | 514,678 | 20,791 | 4.21% |
| 1960 | 493,887 | 78,101 | 18.78% |
| 1950 | 415,786 | 93,374 | 28.96% |
| 1940 | 322,412 | 34,551 | 12.00% |
| 1930 | 287,861 | 31,370 | 12.23% |
| 1920 | 256,491 | 43,110 | 20.20% |
| 1910 | 213,381 | 0.00% |