Boundary Atlas

ZIP code 22124: Oakton, VA

ZIP code 22124 is in Oakton (59% of residents), Difficult Run (36%), Fair Oaks (3.4%) and Reston (1.4%), in Fairfax County, Virginia. It is in Virginia's 11th congressional district. Its state senate districts are State Senate District 37 (95%), State Senate District 36 (3.4%) and State Senate District 38 (1.7%); its state house districts are House of Delegates District 11 (63%) and House of Delegates District 7 (37%).

18,488residents (2020 Census)
10.3 sq miland area
4cities and towns
1congressional district
9voting precincts

See it on the mapAll of Virginia

City and county

City or townShare of ZIP residents
Oakton59%
Difficult Run36%
Fair Oaks3.4%
Reston1.4%

CountyShare of ZIP residents
Fairfax County100%

Town or county subdivisionShare of ZIP residents
Providence district58%
Sully district36%
Springfield district4.3%
Hunter Mill district1.7%

Congressional district

Congressional districtShare of ZIP residents
Virginia's 11th congressional district (VA-11)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 3795%
State Senate District 363.4%
State Senate District 381.7%

State house districtShare of ZIP residents
House of Delegates District 1163%
House of Delegates District 737%

Voting precincts

9 voting precincts overlap ZIP 22124. Map them, with each precinct's share of the ZIP's residents.

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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:22124")

ZIP 22124 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.