Boundary Atlas

Havre de Grace, Maryland

Havre de Grace is a city in Harford County, Maryland, with 14,807 residents in 2020. It is in Maryland's 1st congressional district. Its state senate district is State Senate District 34; its state house district is State Legislative Subdistrict 34A.

14,807residents (2020 Census)
5.9 sq miland area
1ZIP codes
1congressional district

County

CountyShare of residents
Harford County100%

Congressional district

Congressional districtShare of residents
Maryland's 1st congressional district (MD-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (MD-01)Andy Harris (R)202-225-5311100%
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 34)Mary-Dulany James (Democratic)100%
Delegate (State Legislative Subdistrict 34A)Andre Johnson (Democratic)100%
Delegate (State Legislative Subdistrict 34A)Steve Johnson (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

State legislative districts

State senate districtShare of residents
State Senate District 34100%

State house districtShare of residents
State Legislative Subdistrict 34A100%

ZIP codes

Percentages mark ZIPs only partly in Havre de Grace: the share of that ZIP's residents living in it.

Get this in your AI agent

Your agent can get Havre de Grace'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:2437600")

Havre de Grace 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.