Boundary Atlas

ZIP code 20166: Dulles Town Center, VA

ZIP code 20166 is in Dulles Town Center (42% of residents), Oak Grove (17%), Arcola (17%), Sterling (14%), Loudoun Valley Estates (6.8%) and Kincora (2.6%), in Loudoun County, Virginia. It is in Virginia's 10th congressional district. Its state senate district is State Senate District 32; its state house districts are House of Delegates District 28 (44%), House of Delegates District 27 (32%) and House of Delegates District 26 (24%).

14,164residents (2020 Census)
27.2 sq miland area
7cities and towns
1congressional district
10voting precincts

See it on the mapAll of Virginia

City and county

City or townShare of ZIP residents
Dulles Town Center42%
Oak Grove17%
Arcola17%
Sterling14%
Loudoun Valley Estates6.8%
Kincora2.6%
Ashburn<0.1%

CountyShare of ZIP residents
Loudoun County100%

Town or county subdivisionShare of ZIP residents
Broad Run district49%
Sterling district26%
Blue Ridge district17%
Dulles district7.1%

Congressional district

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

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (VA-10)Suhas Subramanyam (D)202-225-5136100%
U.S. SenatorMark R. Warner (D)202-224-2023 · contact formstatewide
U.S. SenatorTim Kaine (D)202-224-4024 · contact formstatewide
State Senator (State Senate District 32)Kannan Srinivasan (Democratic)100%
Delegate (State House District 28)David Reid (Democratic)44%
Delegate (State House District 27)Atoosa Reaser (Democratic)32%
Delegate (State House District 26)J.J. Singh (Democratic)24%

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 32100%

State house districtShare of ZIP residents
House of Delegates District 2844%
House of Delegates District 2732%
House of Delegates District 2624%

Voting precincts

10 voting precincts overlap ZIP 20166. Map them, with each precinct's share of the ZIP's residents.

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ZIP 20166 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.