Maryland's 4th congressional district (MD-04)
Maryland's 4th congressional district (MD-04) covers parts or all of Prince George's County and Montgomery County, and 35 ZIP codes (21 wholly inside it). Its 2020 population was 770,577. This is the map in force for the November 3, 2026 election.
Who represents MD-04
| Office | Member | Contact |
|---|---|---|
| U.S. Representative (MD-04) | Glenn Ivey (D) | 202-225-8699 |
| U.S. Senator | Angela D. Alsobrooks (D) | 202-224-4524 · contact form |
| U.S. Senator | Chris Van Hollen (D) | 202-224-4654 · contact form |
Officials serving now (members of Congress until January 3, 2027). Sources: Members of Congress: the @unitedstates project, congress-legislators (CC0).
Counties
| County | Share of the county's residents in MD-04 |
|---|---|
| Prince George's County | 76% |
| Montgomery County | 3.4% |
ZIP codes
Percentages mark ZIPs only partly in MD-04: the share of that ZIP's residents inside it.
- 20607 (0.2%)
- 20705 (100%)
- 20706
- 20707
- 20708 (100%)
- 20710
- 20712
- 20720 (51%)
- 20721 (4.2%)
- 20722
- 20735 (73%)
- 20737
- 20740
- 20742
- 20743 (97%)
- 20744
- 20745
- 20746
- 20747 (100%)
- 20748
- 20769
- 20770
- 20771
- 20774 (14%)
- 20781
- 20782
- 20783
- 20784
- 20785
- 20866
- 20868 (85%)
- 20903 (19%)
- 20904 (33%)
- 20905 (14%)
- 20912 (14%)
Towns
District 1, Vansville, District 10, Laurel, District 12, Oxon Hill, District 16, Hyattsville, District 17, Chillum, District 18, Seat Pleasant, District 19, Riverdale, District 2, Bladensburg, District 21, Berwyn, District 20, Lanham, District 6, Spauldings, District 9, Surratts, District 5, Piscataway, District 13, Kent, District 14, Bowie, District 5, District 7, Queen Anne, District 15, Mellwood and District 8.
Get this in your AI agent
Your agent can draw every precinct in MD-04, or list them with population shares (related_geographies). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
get_boundaries(id="us:congressional_district:2404", children_level="precinct", include_districts=True)