Winder is a city in Barrow County, Georgia, United States. The population was 10,201 at the 2000 census. Census Estimates of 2005 indicate a population of 12,451. The city is the county seat of Barrow County. Winder is located at 33°59′47″N 83°43′15″W﻿ / ﻿33.99639°N 83.72083°W﻿ / 33.99639; -83.72083 (33.996495, -83.720873). According to the United States Census Bureau, the city has a total area of 11.2 square miles, of which, 10.8 square miles (28.1 km²) of it is land and 0.4 square miles (0.9 km²) of it (3.21%) is water.