Monroe County Population 2018
Monroe County's estimated population is 77,013 with a growth rate of -0.38% in the past year according to the most recent United States census data. Monroe County is the 38th largest county in Florida.
| Year | Population | Growth | Growth Rate |
| 2017 | 77,013 | -291 | -0.38% |
| 2016 | 77,304 | 301 | 0.39% |
| 2015 | 77,003 | 511 | 0.67% |
| 2014 | 76,492 | 578 | 0.76% |
| 2013 | 75,914 | 1,287 | 1.72% |
| 2012 | 74,627 | 646 | 0.87% |
| 2011 | 73,981 | 762 | 1.04% |
| 2010 | 73,219 | -4,805 | -6.16% |
| 1990 | 78,024 | 14,836 | 23.48% |
| 1980 | 63,188 | 10,602 | 20.16% |
| 1970 | 52,586 | 4,665 | 9.73% |
| 1960 | 47,921 | 17,964 | 59.97% |
| 1950 | 29,957 | 15,879 | 112.79% |
| 1940 | 14,078 | 454 | 3.33% |
| 1930 | 13,624 | -5,926 | -30.31% |
| 1920 | 19,550 | -2,013 | -9.34% |
| 1910 | 21,563 | 3,557 | 19.75% |
| 1900 | 18,006 | -780 | -4.15% |
| 1890 | 18,786 | 7,846 | 71.72% |
| 1880 | 10,940 | 5,283 | 93.39% |
| 1870 | 5,657 | 2,744 | 94.20% |
| 1860 | 2,913 | 268 | 10.13% |
| 1850 | 2,645 | 1,957 | 284.45% |
| 1840 | 688 | 171 | 33.08% |
| 1830 | 517 | 0.00% |