ZIP code 22101: McLean, VA
ZIP code 22101 is in McLean, in Fairfax County (100%) and Arlington County (0.1%), Virginia. It is in Virginia's 8th congressional district (100%) and Virginia's 11th congressional district (0.4%). Its state senate districts are State Senate District 38 (100%) and State Senate District 40 (0.1%); its state house districts are House of Delegates District 6 (100%) and House of Delegates District 1 (0.1%).
See it on the mapAll of Virginia
City and county
| City or town | Share of ZIP residents |
|---|---|
| McLean | 100% |
| Arlington | 0.1% |
| County | Share of ZIP residents |
|---|---|
| Fairfax County | 100% |
| Arlington County | 0.1% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Dranesville district | 100% |
| Arlington | 0.1% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Virginia's 8th congressional district (VA-08) | 100% |
| Virginia's 11th congressional district (VA-11) | 0.4% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 38 | 100% |
| State Senate District 40 | 0.1% |
| State house district | Share of ZIP residents |
|---|---|
| House of Delegates District 6 | 100% |
| House of Delegates District 1 | 0.1% |
Voting precincts
13 voting precincts overlap ZIP 22101. 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:22101")
ZIP 22101 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.