Joppatowne, Maryland
Joppatowne is a Census-designated place (an unincorporated community) in Harford County, Maryland, with 13,425 residents in 2020. It is in Maryland's 1st congressional district. It spans 2 state senate and 2 state house districts.
County
| County | Share of residents |
|---|---|
| Harford County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Maryland's 1st congressional district (MD-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MD-01) | Andy Harris (R) | 202-225-5311 | 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 7) | J.B. Jennings (R) | 410-870-5848 | 57% |
| State Senator (State Senate District 34) | Mary-Dulany James (Democratic) | 43% | |
| Delegate (State Legislative Subdistrict 7B) | Lauren Arikan (R) | 57% | |
| Delegate (State Legislative Subdistrict 34A) | Andre Johnson (Democratic) | 43% | |
| Delegate (State Legislative Subdistrict 34A) | Steve Johnson (Democratic) | 43% |
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
- Joppatowne laws: search for the Joppatowne, Maryland code of ordinances
- Harford County website: https://www.harfordcountymd.gov/
- Harford County laws: search for the Harford County, Maryland code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 7 | 57% |
| State Senate District 34 | 43% |
| State house district | Share of residents |
|---|---|
| State Legislative Subdistrict 7B | 57% |
| State Legislative Subdistrict 34A | 43% |
ZIP codes
Percentages mark ZIPs only partly in Joppatowne: the share of that ZIP's residents living in it.
- 21085 (78%)
Get this in your AI agent
Your agent can get Joppatowne'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:2442875")
Joppatowne 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.