Year Population United Georgina & North Gwillimbury1821 2721822 3141823 3392001 39,2632006 44,3002011 51,500 (projected)2016 59,500 (projected)2021 66,800 (projected) North Gwillimbury Georgina1837 530 4061842 697 5861850 1,172 9461871 2,304 1,9871881 2,151 2,482