Boundary Atlas

Londonderry, New Hampshire

Londonderry is a Census-designated place (an unincorporated community) in Rockingham County, New Hampshire, with 11,645 residents in 2020. It is in New Hampshire's 1st congressional district. Its state senate district is State Senate District 14; its state house district is State House District Rockingham 16.

11,645residents (2020 Census)
12.2 sq miland area
2ZIP codes
1congressional district

County

CountyShare of residents
Rockingham County100%

Congressional district

Congressional districtShare of residents
New Hampshire's 1st congressional district (NH-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (NH-01)Chris Pappas (D)202-225-5456100%
U.S. SenatorJeanne Shaheen (D)202-224-2841 · contact formstatewide
U.S. SenatorMargaret Wood Hassan (D)202-224-3324 · contact formstatewide
State Senator (State Senate District 14)Sharon Carson (R)100%
State Representative (State House District Rockingham 16)David Lundgren (R)100%
State Representative (State House District Rockingham 16)Doug Thomas (R)100%
State Representative (State House District Rockingham 16)Kristine Perez (R)100%
State Representative (State House District Rockingham 16)Ron Dunn (R)100%
State Representative (State House District Rockingham 16)Sherm Packard (R)100%
State Representative (State House District Rockingham 16)Tom Dolan (R)100%
State Representative (State House District Rockingham 16)Wayne MacDonald (R)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 14100%

State house districtShare of residents
State House District Rockingham 16100%

ZIP codes

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

Get this in your AI agent

Your agent can get Londonderry'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:3343140")

Londonderry 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.