I was curious so I checked. Based on 2008 Census numbers,
Forsyth's population of 168,090 - 90% white, 4.6 % asian, 4% black, 8.5% hispanic. Compare this to 2000 when the county population was 98,407 - 95.05% White, 0.70% Black, 0.80% Asian, 5.6% hispanic. Going farther back, the population was just 44,083 in 1990 so the majority of population has moved there in the last 20 years.