Average household size registered at 4.3 persons
The population of the province of Romblon was 292,781 as of August 1, 2015, based on the 2015 Census of Population. This figure was higher by 8,851 over the population count of 283,930 persons in 2010.The population count of the province for the 2010 and 2015 censuses translated to an average annual population growth rate of 0.59 percent. The number of households in the province reached 68,362 or an increase of 5,648 households from the 2010 census figure of 62,714 households. The average household size in 2015 was 4.3 members, lower than the average household size of 4.5 members in 2010.