Boundary Atlas

ZIP code 20745: Glassmanor, MD

ZIP code 20745 is in Glassmanor (58% of residents), National Harbor (17%), Oxon Hill (15%), Forest Heights (8.3%) and Hillcrest Heights (2.1%), in Prince George's County, Maryland. It is in Maryland's 4th congressional district. Its state senate district is State Senate District 26; its state house district is State Legislative District 26.

32,024residents (2020 Census)
6.5 sq miland area
5cities and towns
1congressional district
10voting precincts

See it on the mapAll of Maryland

City and county

City or townShare of ZIP residents
Glassmanor58%
National Harbor17%
Oxon Hill15%
Forest Heights8.3%
Hillcrest Heights2.1%

CountyShare of ZIP residents
Prince George's County100%

Town or county subdivisionShare of ZIP residents
District 12, Oxon Hill100%

Congressional district

Congressional districtShare of ZIP residents
Maryland's 4th congressional district (MD-04)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MD-04)Glenn Ivey (D)202-225-8699100%
U.S. SenatorAngela D. Alsobrooks (D)202-224-4524 · contact formstatewide
U.S. SenatorChris Van Hollen (D)202-224-4654 · contact formstatewide
State Senator (State Senate District 26)Anthony Muse (Democratic)100%
Delegate (State Legislative District 26)Jamila Woods (Democratic)100%
Delegate (State Legislative District 26)Kris Valderrama (Democratic)100%
Delegate (State Legislative District 26)Veronica Turner (Democratic)100%

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 26100%

State house districtShare of ZIP residents
State Legislative District 26100%

Voting precincts

10 voting precincts overlap ZIP 20745. 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:20745")

ZIP 20745 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.