The population of Romblon was 279,774 persons as of August 1, 2007, based on the 2007 Census of Population. This figure was higher by 15,417 persons over the population count of 264,357 persons in 2000. The population count of the province for the 2000 and 2007 censuses translated to an average annual population growth rate of 0.78 percent.

The province of Palawan (excluding Puerto Princesa City) had a total population of 682,152 persons as of August 1, 2007, higher by 14.9 percent compared with the census count of 593,500 persons as of May 1, 2000. The increase in population count for the period 2000 to 2007 translated to an annual population growth rate of 1.94 percent.

The total population of Occidental Mindoro as of August 1, 2007 was 421,952 persons. This figure is higher by 41,702 persons over the 2000 Census figure of 380,250 persons. The population count of the province based on the 2000 and 2007 censuses translated to an annual population growth rate (PGR) of 1.44 percent, lower than the 2.45 percent PGR for the period 1995 to 2000.