An examination of the 1960 to 2000 census results for population by age groups indicate that the modal age group in 1960 was 0 to 4, in 1970 it was 5 to 9, in 1980 the mode was 15 to 19, in 1990 it was back to the 5 to 9 age group and for the 2000 census the 15 to 19 age group represented the modal class.
These data suggest that Trinidad and Tobago’s population has remained fairly young, in contrast to the aging populations found in much of Europe.
An examination of the census results from 1980 through 2000 reveals that the areas with the consistently highest population densities are the urban centres of the City of Port of Spain, the City of San Fernando and the Borough of Arima. The counties of Nariva/Mayaro, St. Andrew/St. David, Victoria and St. Patrick (rural areas) are consistently among the areas exhibiting the lowest population densities. These data therefore suggest that population density is strongly related to where an area lies on the urban/rural continuum.