Boundary Atlas

ZIP code 20721: Lake Arbor, MD

ZIP code 20721 is in Lake Arbor (35% of residents), Mitchellville (21%), Bowie (19%), Woodmore (15%) and Springdale (4.2%), in Prince George's County, Maryland. 5.8% of its residents live outside city limits. It is in Maryland's 5th congressional district (96%) and Maryland's 4th congressional district (4.2%). Its state senate districts are State Senate District 24 (63%), State Senate District 23 (29%) and State Senate District 25 (7.4%); its state house districts are State Legislative District 24 (63%), State Legislative District 23 (29%) and State Legislative District 25 (7.4%).

29,847residents (2020 Census)
16.8 sq miland area
5cities and towns
2congressional districts
15voting precincts

See it on the mapAll of Maryland

City and county

City or townShare of ZIP residents
Lake Arbor35%
Mitchellville21%
Bowie19%
Woodmore15%
Springdale4.2%

CountyShare of ZIP residents
Prince George's County100%

Town or county subdivisionShare of ZIP residents
District 13, Kent60%
District 7, Queen Anne40%

Congressional districts

Congressional districtShare of ZIP residents
Maryland's 5th congressional district (MD-05)96%
Maryland's 4th congressional district (MD-04)4.2%

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.

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MD-05)Steny H. Hoyer (D)202-225-413196%
U.S. Representative (MD-04)Glenn Ivey (D)202-225-86994.2%
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 24)Joanne Benson (Democratic)63%
State Senator (State Senate District 23)Ron Watson (Democratic)29%
State Senator (State Senate District 25)Nick Charles (Democratic)7.4%
Delegate (State Legislative District 24)Andrea Harrison (Democratic)63%
Delegate (State Legislative District 24)Derrick Coley (Democratic)63%
Delegate (State Legislative District 24)Tiffany Alston (Democratic)63%
Delegate (State Legislative District 23)Adrian Boafo (Democratic)29%
Delegate (State Legislative District 23)Kym Taylor (Democratic)29%
Delegate (State Legislative District 23)Marvin Holmes (Democratic)29%
Delegate (State Legislative District 25)Denise Roberts (Democratic)7.4%
Delegate (State Legislative District 25)Karen Toles (Democratic)7.4%
Delegate (State Legislative District 25)Kent Roberson (Democratic)7.4%

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 2463%
State Senate District 2329%
State Senate District 257.4%

State house districtShare of ZIP residents
State Legislative District 2463%
State Legislative District 2329%
State Legislative District 257.4%

Voting precincts

15 voting precincts overlap ZIP 20721. 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:20721")

ZIP 20721 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.