Ellicott City, Maryland
Ellicott City is a Census-designated place (an unincorporated community) in Howard County, Maryland, with 75,947 residents in 2020. It is in Maryland's 3rd congressional district. It spans 2 state senate and 3 state house districts.
County
| County | Share of residents |
|---|---|
| Howard County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Maryland's 3rd congressional district (MD-03) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MD-03) | Sarah Elfreth (D) | 202-225-4016 | 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 9) | Katie Hester (Democratic) | 96% | |
| State Senator (State Senate District 12) | Clarence Lam (Democratic) | 4.5% | |
| Delegate (State Legislative Subdistrict 9B) | Courtney Watson (Democratic) | 58% | |
| Delegate (State Legislative Subdistrict 9A) | Chao Wu (Democratic) | 37% | |
| Delegate (State Legislative Subdistrict 9A) | Natalie Ziegler (Democratic) | 37% | |
| Delegate (State Legislative Subdistrict 12A) | Jessica Feldmark (Democratic) | 4.5% | |
| Delegate (State Legislative Subdistrict 12A) | Terri Hill (Democratic) | 4.5% |
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
- Ellicott City laws: search for the Ellicott City, Maryland code of ordinances
- Howard County website: https://www.howardcountymd.gov/
- Howard County laws: search for the Howard County, Maryland code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 9 | 96% |
| State Senate District 12 | 4.5% |
| State house district | Share of residents |
|---|---|
| State Legislative Subdistrict 9B | 58% |
| State Legislative Subdistrict 9A | 37% |
| State Legislative Subdistrict 12A | 4.5% |
ZIP codes
Percentages mark ZIPs only partly in Ellicott City: the share of that ZIP's residents living in it.
Get this in your AI agent
Your agent can get Ellicott City'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:2426000")
Ellicott City here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.