Boundary Atlas

Fallston, Maryland

Fallston is a Census-designated place (an unincorporated community) in Harford County, Maryland, with 9,306 residents in 2020. It is in Maryland's 1st congressional district. It spans 2 state senate and 2 state house districts.

9,306residents (2020 Census)
14.0 sq miland area
3ZIP 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 7)J.B. Jennings (R)410-870-584863%
State Senator (State Senate District 35)Jason Gallion (R)37%
Delegate (State Legislative Subdistrict 7B)Lauren Arikan (R)63%
Delegate (State Legislative Subdistrict 35A)Mike Griffith (R)37%
Delegate (State Legislative Subdistrict 35A)Teresa Reilly (R)37%

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 763%
State Senate District 3537%

State house districtShare of residents
State Legislative Subdistrict 7B63%
State Legislative Subdistrict 35A37%

ZIP codes

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

Get this in your AI agent

Your agent can get Fallston's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:place:2427700")

Fallston 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.