Mountain, US: population 1918–2025
See Mountain, US on the map →Population by year
| Year | Population |
|---|---|
| 1918 | 3.2M |
| 1921 | 3.4M |
| 1924 | 3.5M |
| 1927 | 3.6M |
| 1930 | 3.7M |
| 1933 | 3.8M |
| 1936 | 4.0M |
| 1939 | 4.1M |
| 1942 | 4.3M |
| 1945 | 4.6M |
| 1948 | 4.9M |
| 1951 | 11.8M |
| 1954 | 12.4M |
| 1957 | 13.0M |
| 1960 | 6.9M |
| 1963 | 14.2M |
| 1966 | 14.8M |
| 1969 | 15.3M |
| 1972 | 15.9M |
| 1975 | 16.4M |
| 1978 | 16.9M |
| 1981 | 17.5M |
| 1984 | 18.0M |
| 1987 | 18.5M |
| 1990 | 13.7M |
| 1993 | 19.7M |
| 1996 | 20.5M |
| 1999 | 21.2M |
| 2002 | 21.9M |
| 2005 | 22.5M |
| 2008 | 23.1M |
| 2011 | 23.7M |
| 2014 | 24.3M |
| 2017 | 24.8M |
| 2020 | 24.9M |
| 2023 | 25.2M |
| 2025 | 26.3M |