ZIP code 30090: Cobb County, GA
ZIP code 30090 is in Cobb County, Georgia, outside any city or Census-designated place. It is in Georgia's 11th congressional district. Its state senate district is State Senate District 33; its state house district is State House District 37.
See it on the mapAll of Georgia
City and county
Outside any city or Census-designated place.
| County | Share of ZIP residents |
|---|---|
| Cobb County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Marietta CCD | 100% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Georgia's 11th congressional district (GA-11) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (GA-11) | Barry Loudermilk (R) | 202-225-2931 | 100% |
| U.S. Senator | Jon Ossoff (D) | 202-224-3521 · contact form | statewide |
| U.S. Senator | Raphael G. Warnock (D) | 202-224-3643 · contact form | statewide |
| State Senator (State Senate District 33) | Doc Rhett (Democratic) | 100% | |
| State Representative (State House District 37) | Mary Frances Williams (Democratic) | 100% |
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Cobb County website: http://www.cobbcounty.org
- Cobb County laws: search for the Cobb County, Georgia code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 33 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 37 | 100% |
Voting precincts
1 voting precinct overlap ZIP 30090. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:30090")
ZIP 30090 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.