What County Is Atlanta, GA In? A Local’s Guide to Atlanta and Fulton County

If you’re trying to figure out the county of Atlanta, GA, the short answer is:

Most of the City of Atlanta is in Fulton County, with a portion in DeKalb County.

But in day-to-day life, government services, schools, voting, and even your property taxes can depend on which county your Atlanta address is in. This guide walks you through how counties work in the Atlanta area, what “County of Atlanta GA” usually means, and how to find the right county offices and services.

Atlanta’s Counties at a Glance

Atlanta is a city that spans two counties:

  • Fulton County – The primary county for Atlanta; most residents with an Atlanta city address are here.
  • DeKalb County – Eastern portions of the city limits, including some in-town and eastside neighborhoods, fall here.

When forms say “County of Atlanta, GA”, they almost always want to know:

Simple Overview Table

QuestionTypical Answer for Atlanta Residents
What is the main county for Atlanta, GA?Fulton County
Does Atlanta sit in more than one county?Yes – Fulton County and DeKalb County
Can a city be in multiple counties?Yes, and Atlanta is a common example in Georgia
Do all Atlanta addresses mean City of ATL?No – some “Atlanta, GA” mailing addresses are outside city limits
Who handles county-level services?Fulton County or DeKalb County, depending on where you live

Fulton County: The Primary County for Atlanta, GA

When people say “County of Atlanta,” they’re usually talking about Fulton County, because:

  • Most of the City of Atlanta’s population and land area are in Fulton.
  • Downtown, Midtown, Westside, Buckhead, and much of Southwest Atlanta are in Fulton County.
  • Fulton County is the county seat for many metro-area government and court functions.

Key Fulton County Government Locations (Atlanta Area)

These are central points many Atlanta residents use for county business:

  • Fulton County Government Center
    141 Pryor St SW
    Atlanta, GA 30303
    Commonly used for county administration, some records, and public meetings.

  • Fulton County Courthouse (Superior Court, State Court)
    136 Pryor St SW
    Atlanta, GA 30303

  • Fulton County Sheriff’s Office – Main Office
    185 Central Ave SW
    Atlanta, GA 30303

For most Fulton-based Atlanta residents, property records, jury duty, county taxes, and county-level courts are handled through offices connected to these locations.

DeKalb County: The Other County Inside Atlanta’s City Limits

A significant part of East Atlanta is inside the City of Atlanta but falls under DeKalb County jurisdiction. This can surprise people who assume all of Atlanta is in Fulton.

Some areas of the City of Atlanta that may be in DeKalb County include portions of:

  • East Atlanta
  • Edgewood
  • Kirkwood
  • East Lake
  • Some areas near the Eastside Trail and Memorial Drive

For these addresses, you may:

  • Pay DeKalb County property taxes (if you own a home)
  • Go to DeKalb County courts for county matters
  • Deal with DeKalb County for some services, even though your city is Atlanta

Key DeKalb County Government Location

  • DeKalb County Courthouse & Administrative Complex
    556 N McDonough St
    Decatur, GA 30030

Even though this is in Decatur, it serves DeKalb County residents, including Atlanta addresses that fall inside DeKalb County.

How to Tell Which County Your Atlanta Address Is In

Many people in metro Atlanta have:

  • A mailing address that says “Atlanta, GA”
  • But are either not in the City of Atlanta or not in Fulton County

To figure out your true county:

1. Use Your Property Tax or Mortgage Documents

If you own property, your annual property tax bill or closing documents will usually state:

  • County name (Fulton or DeKalb, or occasionally another metro county)
  • The parcel ID assigned by that county

2. Look Up Your Address in County Property Databases

Most county governments offer an online property search where you can:

  • Enter your street address
  • Confirm the county, jurisdiction, and sometimes city

Search for:

  • “Fulton County property search”
  • “DeKalb County property search”

Then match your address to see which county you’re in.

3. Check with the City of Atlanta

If you’re unsure whether you’re actually inside the City of Atlanta (not just using an Atlanta ZIP code), you can:

  • Search for “City of Atlanta address search” or “city limits map”
  • Use the city’s online tools to confirm if your address is in city limits

This matters because:

  • You can be in Fulton County but not in the City of Atlanta
  • Or have an “Atlanta, GA” address in Cobb, Clayton, or DeKalb County, but not be in Atlanta city limits at all

Why Your County Matters if You Live in Atlanta

Even if all your mail just says “Atlanta, GA,” your county affects:

1. Property Taxes and Assessments

  • County tax assessors determine your property’s taxable value.
  • Fulton County Board of Assessors or DeKalb County Board of Assessors will manage this, depending on your county.
  • Your millage rate and tax bill may differ based on county, even if your city is the same.

2. Schools and School Districts

County often affects which school system serves your area:

  • Most of Atlanta city addresses in Fulton are served by Atlanta Public Schools (APS).
  • Some DeKalb County areas in the City of Atlanta may be served by APS or DeKalb County School District, depending on boundaries.
  • Areas with “Atlanta, GA” mailing addresses outside city limits may be in Fulton County Schools, DeKalb County Schools, Cobb County Schools, or others.

Always confirm via the school district’s address lookup rather than relying on city name alone.

3. Voting and Elections

Your county determines:

  • Your county elections office
  • Which local races (for county commission, sheriff, judges, school board) appear on your ballot
  • Where certain early voting locations may be

For example:

  • A Midtown resident in Fulton County votes in Fulton County races.
  • An East Atlanta resident in the DeKalb portion of the city votes in DeKalb County races.

4. Courts, Jury Duty, and Legal Matters

If you’re summoned for jury duty, or need to:

  • File a civil lawsuit
  • Handle probate matters
  • Address traffic or misdemeanor cases

You’ll generally deal with the courts in your county of residence, such as:

  • Fulton County Superior Court / State Court (downtown Atlanta)
  • DeKalb County Superior Court / State Court (Decatur)

5. County Services (Health, Records, and More)

Each county offers services such as:

  • Health departments
  • Vital records (birth and death certificates, in many cases)
  • Business licensing, depending on the type of business and location
  • Animal services, some social services, and certain local programs

You’ll need to contact Fulton County or DeKalb County depending on your county of residence or where the event occurred.

Common Atlanta Address Confusions

1. “Atlanta, GA” Mailing Address vs. Actual City & County

In the metro area, the US Postal Service allows many areas to use “Atlanta, GA” as a mailing city, even if:

  • You are in a different city (like Sandy Springs, College Park, or Brookhaven), or
  • You are in a different county (like Cobb, Clayton, or Gwinnett)

This means:

  • “Atlanta, GA” on your mail does not guarantee you are in the City of Atlanta or Fulton County.
  • You might pay taxes to a different city or county government entirely.

2. Neighborhood Names vs. City/County Lines

Locals often use neighborhood names that cross county or city boundaries, such as:

  • Buckhead – mostly City of Atlanta / Fulton, but nearby areas with “Buckhead” identity may be outside official boundaries.
  • East Atlanta – parts inside City of Atlanta / DeKalb, others may not be.

When dealing with legal documents, government services, or official forms, always rely on:

  • The legal city name
  • The official county tied to your address

Which County Office Should You Contact in Atlanta?

Here is a quick guide to help you figure out who to call or visit based on typical needs.

If You Live in the Fulton Part of Atlanta

You may need:

  • Fulton County Tax Commissioner – for property tax payments and car tags
    141 Pryor St SW, Suite 1085
    Atlanta, GA 30303

  • Fulton County Board of Assessors – for property assessments and appeals
    235 Peachtree St NE, Suite 1400
    Atlanta, GA 30303

  • Fulton County Vital Records (through Fulton County Board of Health or state offices) – for certain birth/death certificates related to events in the county.

If You Live in the DeKalb Part of Atlanta

You may need:

  • DeKalb County Tax Commissioner – property tax payments, motor vehicle services
    4380 Memorial Dr
    Decatur, GA 30032

  • DeKalb County Tax Assessor’s Office – assessments and appeals
    120 W Trinity Pl
    Decatur, GA 30030

  • DeKalb County Vital Records – for records tied to DeKalb County events
    Often accessed via DeKalb County Board of Health or Georgia’s state vital records system.

☎️ Tip: For any of these, it’s wise to call ahead or check current hours and procedures, especially for in-person services or document requests.

Filling Out Forms: What to Put for “County of Atlanta, GA”

When a form asks for “County” and you live in or around Atlanta, you should:

  1. Confirm your correct county (Fulton, DeKalb, Cobb, Clayton, etc.)
  2. Enter that county name, not “Atlanta.”

Examples:

  • If you live in Midtown and your address is in Fulton County, you write:

    • City: Atlanta
    • County: Fulton
  • If you live in an East Atlanta address that’s in DeKalb County, you write:

    • City: Atlanta
    • County: DeKalb
  • If your mailing address is “Atlanta, GA” but you’re in unincorporated Cobb County:

    • City: Whatever your legal city/unincorporated designation is (or “unincorporated” if indicated)
    • County: Cobb

If you’re unsure, verify through a county property lookup or by contacting your local county government.

Quick Recap: County of Atlanta, GA

  • The primary county for Atlanta, GA is Fulton County.
  • Parts of Atlanta’s city limits also extend into DeKalb County.
  • Many addresses say “Atlanta, GA” but are not in the City of Atlanta and may be in other counties.
  • For official forms, taxes, voting, schools, and court matters, always confirm your specific county, not just your city name.
  • When in doubt, check with Fulton County, DeKalb County, or your local county government to confirm which county your Atlanta-area address belongs to.