Imus's 2020 population is now estimated at 527,779. In 1950, the population of Imus was 23,377. Imus has grown by 125,894 since 2015, which represents a 5.60% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects. These estimates represent the Urban agglomeration of Imus, which typically includes Imus's population in addition to adjacent suburban areas.
| Year | Population | Growth Rate (%) | Growth |
|---|---|---|---|
| 2035 | 800,213 | 2.07% | 78,092 |
| 2030 | 722,121 | 2.40% | 80,852 |
| 2025 | 641,269 | 3.97% | 113,490 |
| 2020 | 527,779 | 5.60% | 125,894 |
| 2015 | 401,885 | 5.71% | 97,448 |
| 2010 | 304,437 | 4.48% | 59,859 |
| 2005 | 244,578 | 4.43% | 47,678 |
| 2000 | 196,900 | 2.53% | 23,154 |
| 1995 | 173,746 | 13.06% | 79,711 |
| 1990 | 94,035 | 4.81% | 19,699 |
| 1985 | 74,336 | 4.54% | 14,794 |
| 1980 | 59,542 | 4.02% | 10,656 |
| 1975 | 48,886 | 2.21% | 5,057 |
| 1970 | 43,829 | 3.17% | 6,329 |
| 1965 | 37,500 | 3.20% | 5,464 |
| 1960 | 32,036 | 3.20% | 4,671 |
| 1955 | 27,365 | 3.20% | 3,988 |
| 1950 | 23,377 | 0.00% |