Upper Marlboro, Maryland
Upper Marlboro is a town in Prince George's County, Maryland, with 674 residents in 2020. It is in Maryland's 5th congressional district. Its state senate district is State Senate District 23; its state house district is State Legislative District 23.
County
| County | Share of residents |
|---|---|
| Prince George's County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Maryland's 5th congressional district (MD-05) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MD-05) | Steny H. Hoyer (D) | 202-225-4131 | 100% |
| U.S. Senator | Angela D. Alsobrooks (D) | 202-224-4524 · contact form | statewide |
| U.S. Senator | Chris Van Hollen (D) | 202-224-4654 · contact form | statewide |
| State Senator (State Senate District 23) | Ron Watson (Democratic) | 100% | |
| Delegate (State Legislative District 23) | Adrian Boafo (Democratic) | 100% | |
| Delegate (State Legislative District 23) | Kym Taylor (Democratic) | 100% | |
| Delegate (State Legislative District 23) | Marvin Holmes (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
- Upper Marlboro website: http://www.uppermarlboromd.gov/
- Upper Marlboro laws: search for the Upper Marlboro, Maryland code of ordinances
- Prince George's County website: https://www.princegeorgescountymd.gov/
- Prince George's County laws: search for the Prince George's County, Maryland code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 23 | 100% |
| State house district | Share of residents |
|---|---|
| State Legislative District 23 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Upper Marlboro: the share of that ZIP's residents living in it.
- 20772 (1.3%)
Get this in your AI agent
Your agent can get Upper Marlboro's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:2479875")
Upper Marlboro here is the Census Bureau's place boundary as of January 1, 2025. Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.