County Guide · Forsyth County
Search results will tell you Forsyth County has three cities, or nine. The official answer is one. That single fact explains more about living in Georgia’s wealthiest county than any list could — and it changes a few practical things when you move here.
Quick answer
Forsyth County, Georgia has exactly one incorporated city: Cumming, the county seat. Everything else in the county’s 224 square miles — including fast-growing areas with Alpharetta, Suwanee, or Gainesville mailing addresses — is unincorporated Forsyth County, governed by the county itself. Forsyth is Georgia’s wealthiest county, with a median household income of $151,031 (ACS 2024 1-year estimates).
Aggregator sites routinely list Alpharetta or Ball Ground as Forsyth County cities. They aren’t: Alpharetta is a Fulton County city, and Ball Ground belongs to Cherokee County. The confusion comes from postal geography — large parts of south and west Forsyth carry Alpharetta or Suwanee mailing addresses, and the northeast carries Gainesville addresses, even though every one of those homes sits in unincorporated Forsyth County. The U.S. Postal Service draws delivery zones; it does not draw county lines.
The address trap
If a listing says “Alpharetta” but the tax bill says Forsyth County, you are not in Alpharetta — you’re in unincorporated Forsyth. Different county taxes, different services, and a different (single) school district. Always check the county on the parcel, not the postmark.
Because Cumming is the only municipality, Forsyth County government runs nearly everything: sheriff coverage, permits, zoning, parks. And the entire county — Cumming included for most purposes — is served by a single K–12 system, Forsyth County Schools, with 41 schools and more than 51,000 students. For families, that removes the district-shopping puzzle that dominates moves in neighboring counties: in Forsyth, the question is which school zone, never which district.
The county’s eastern border is Lake Lanier — 37,000 acres of reservoir shoreline — which is where much of the county’s lake-community housing sits.
At the 2020 census, Forsyth ranked as the wealthiest county in Georgia and the 16th-wealthiest in the United States. Growth has been the county’s defining story: from 175,511 residents in 2010 to 251,283 in 2020 — among the fastest rates in the nation — and past 280,000 today.
Most Forsyth moves are Cumming-addressed whether or not they’re in the city proper. Our Cumming movers page covers how we handle the county, and the moving to Cumming guide walks through neighborhoods and logistics. Budget-wise, Forsyth moves price like the rest of metro Atlanta — hourly crew rates, explained in our Atlanta moving cost guide; the main Forsyth-specific factors are new-construction communities with HOA move-in rules and longer driveway runs in lake and estate areas.
Licensed Georgia crews, written quotes, and HOA/community move-in handling across Cumming and unincorporated Forsyth.
One. Cumming is Forsyth County’s only incorporated city and its county seat. Every other community in the county is unincorporated.
No — Alpharetta is in Fulton County. Parts of south Forsyth carry Alpharetta mailing addresses, which is why lists often get this wrong; those homes are actually in unincorporated Forsyth County.
Yes. Forsyth County has Georgia’s highest median household income — $151,031 per ACS 2024 1-year estimates — and ranked 16th-wealthiest in the U.S. at the 2020 census.
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