Boundary Atlas

ZIP code 20164: Sterling, VA

ZIP code 20164 is in Sterling (69% of residents) and Sugarland Run (30%), in Loudoun County, Virginia. It is in Virginia's 10th congressional district. Its state senate districts are State Senate District 32 (70%) and State Senate District 31 (30%); its state house district is House of Delegates District 27.

40,888residents (2020 Census)
7.6 sq miland area
4cities and towns
1congressional district
11voting precincts

See it on the mapAll of Virginia

City and county

City or townShare of ZIP residents
Sterling69%
Sugarland Run30%
Lowes Island0.2%
Cascades0.2%

CountyShare of ZIP residents
Loudoun County100%

Town or county subdivisionShare of ZIP residents
Sterling district84%
Algonkian district16%
Broad Run districtland only

Congressional district

Congressional districtShare of ZIP residents
Virginia's 10th congressional district (VA-10)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 3270%
State Senate District 3130%

State house districtShare of ZIP residents
House of Delegates District 27100%

Voting precincts

11 voting precincts overlap ZIP 20164. 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:20164")

ZIP 20164 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.