90.5% of persons usually resident in Port Lincoln were Australian citizens, 8.2% were born overseas and 0.2% were overseas visitors.

There were 3,801 families in Port Lincoln: 41.7% were couple families with children, 40.4% were couple families without children, 16.4% were one parent families and 1.4% were other families.

English was stated as the only language spoken at home by 91.1% of persons usually resident in Port Lincoln. The most common languages other than English spoken at home were: Croatian 0.6%, Italian 0.4%, Greek 0.2%, German 0.2% and Spanish 0.1%.

* statistcs taken from the 2006 Census for postal area 5606 conducted by the Australian Bureau of Statistics