- Downtown & Avalon — the walkable core on both sides of GA 400
- Windward — lake and club district near the county line
- Milton — acreage and horse country
- Johns Creek — river and club country
- South Forsyth — unincorporated, Forsyth schools
What the record shows
- Fulton County Schools’ address records give “Alpharetta” as the mailing city for addresses in ZIP codes 30004, 30005, 30009 and 30022, including addresses inside Milton, Johns Creek and Roswell. Fulton County Schools GIS: Basemap/AddressPoints FeatureServer layer 0 (fields Zip, City, PrefCity), checked 2026-10-19
- Census ZIP area 30004 overlaps the cities of Milton, Alpharetta and Roswell plus unincorporated land, and spans Fulton, Forsyth and Cherokee counties; by land area it is about 61% Milton and 7% Alpharetta. U.S. Census Bureau, 2020 ZCTA-to-Place and ZCTA-to-County relationship files, checked 2026-10-19
- ZCTA 30005 overlaps the cities of Alpharetta and Johns Creek plus unincorporated land, and spans Fulton and Forsyth counties. By land area it is about 54% Alpharetta, 16% Johns Creek and 30% outside any city (the Forsyth County part). U.S. Census Bureau, 2020 ZCTA-to-Place and ZCTA-to-County relationship files, checked 2026-10-19
- ZCTA 30022 lies entirely in Fulton County. It overlaps Johns Creek, Alpharetta and Roswell (about 65%, 27% and 8% of its land area). U.S. Census Bureau, 2020 ZCTA-to-Place and ZCTA-to-County relationship files, checked 2026-10-19
- Forsyth County Schools' address GIS lists 7,376 Forsyth County addresses in ZIP 30004 and 3,217 in ZIP 30005 with the city name 'Alpharetta'. No other ZIP in that data uses 'Alpharetta'. Forsyth County Schools GIS: FCSS_FY2025 FeatureServer layer 4 (address_FY2025), checked 2026-10-19
- The City of Milton formed in 2006 from parts of unincorporated Fulton County. It is named for John Milton, also the namesake of the former Milton County (1857-1931). City of Milton: About Milton, checked 2026-10-19
- The City of Johns Creek was incorporated on December 1, 2006. City of Johns Creek: 'Johns Creek holds millage rate hearings for 2026' (July 2, 2026), checked 2026-10-19
How to check a parcel in a minute
- Find the parcel on the county’s own map (Fulton or Forsyth, links below) and read its tax district.
- For homes in Fulton County, the city named in the tax district is the city that taxes and serves the home.
- Confirm the school assignment with the district’s locator, not the listing.
Fulton County Board of Assessors: property search
Parcel and tax district
Look up the parcel and read its tax district.
Source: Fulton County Board of Assessors: 2025 Homestead Exemption Guide, checked 2026-10-19
City of Johns Creek: Confirm Address
City limits check
Enter an address; an icon appears if it is inside Johns Creek.
Source: City of Johns Creek: Confirm Address, checked 2026-10-19
Forsyth County Board of Assessors
Forsyth parcels
For homes north of the Fulton line.
Source: Forsyth County Board of Assessors: Homestead & Other Exemptions (modified Oct. 6, 2026), checked 2026-10-19
Why it matters for a luxury purchase
| What changes | Set by |
|---|---|
| Property tax rate (city share) | The city, or the county if unincorporated |
| Homestead exemptions | Each government, separately |
| Zoning, permits, tree and fence rules | The city, or Forsyth County |
| School district | Fulton County Schools or Forsyth County Schools |
| Police and code enforcement | The city, or the county sheriff |
Questions buyers ask
Is Milton, GA part of Alpharetta?
No. Milton has been its own city since 2006, with its own council, tax rate and zoning. Many Milton homes still have Alpharetta mailing addresses because the ZIP codes cross the city line.
Source: City of Milton: About Milton
Does an Alpharetta address mean the home is in the City of Alpharetta?
Not necessarily. Fulton County Schools’ address records use “Alpharetta” as the mailing city for ZIPs 30004, 30005, 30009 and 30022, including addresses in Milton, Johns Creek and Roswell. Check the parcel’s tax district.
Source: Fulton County Schools GIS: Basemap/AddressPoints FeatureServer layer 0 (fields Zip, City, PrefCity)
Why are Fulton County’s 2026 tax bills temporary?
Fulton County says its 2026 bills use preliminary 2026 values and each jurisdiction’s 2025 millage rate, as the Fulton Superior Court authorized.
Source: Fulton County: 'Fulton County Issues Property Tax Bills' (Aug. 14, 2026)
Tax rates, exemptions and rules change every year. Every number on this page links to the office that sets it; confirm with that office before you rely on it.

