The total population of Camarines Sur, as of May 1, 2000, was 1,551,549 persons. This implied an increase of 118,951 persons over the 1995 census figure or an average annual population growth rate of 1.72 percent, slightly lower than the annual population growth rate recorded during the 1990 to 1995 period (1.75 percent). A corresponding increase on the number of households was also registered, from 265,030 households in 1995 to 288,172 households in 2000. This resulted to an average household size of 5.38 persons, slightly lower than the average household size (5.40 persons) recorded five years ago.