On census night, August 6, 1991, 280,095 people were counted in the ACT and Jervis bay, according to figures issued yesterday by the Australian Bureau of Statistics.
It was up 12.3 per cent on the previous census in 1986.
Tuggeranong was up 44.7 per cent, Woden 6.3, Central 6.0, Belconnen 5.2, and Weston -4.7.
On census night, 60.0 of those counted in the ACT a Jervis Bay were under 35 and 6.1 were 65 or over.