Boundary Atlas

ZIP code 20902: Wheaton, MD

ZIP code 20902 is in Wheaton (64% of residents), Kemp Mill (16%), Forest Glen (9.3%), Glenmont (5.6%) and North Kensington (5.5%), in Montgomery County, Maryland. It is in Maryland's 8th congressional district. Its state senate districts are State Senate District 18 (79%) and State Senate District 19 (21%); its state house districts are State Legislative District 18 (79%) and State Legislative District 19 (21%).

52,533residents (2020 Census)
7.6 sq miland area
5cities and towns
1congressional district
17voting precincts

See it on the mapAll of Maryland

City and county

City or townShare of ZIP residents
Wheaton64%
Kemp Mill16%
Forest Glen9.3%
Glenmont5.6%
North Kensington5.5%

CountyShare of ZIP residents
Montgomery County100%

Town or county subdivisionShare of ZIP residents
District 13100%

Congressional district

Congressional districtShare of ZIP residents
Maryland's 8th congressional district (MD-08)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 1879%
State Senate District 1921%

State house districtShare of ZIP residents
State Legislative District 1879%
State Legislative District 1921%

Voting precincts

17 voting precincts overlap ZIP 20902. 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:20902")

ZIP 20902 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.