Hall’s cities all showed a slight bump in population between 2011 and 2012 according to the estimates released today by the U.S. Census Bureau. Gainesville: + 1.4 percent to 34,786 Flowery Branch: +2.7 percent to 6,012 Oakwood: +1.2 percent to 4,090 Lula: +1.1 percent to 2,828 Clermont: +1.4 percent to 898 Gillsville: +1.3 percent to 242 See population changes in all Georgia's cities