ZIP code 01105: Springfield, MA

ZIP code 01105 is in Springfield, in Hampden County, Massachusetts. It is in Massachusetts's 1st congressional district. Its state senate district is Hampden District; its state house districts are 10th Hampden District (78%) and 11th Hampden District (22%).

12,051residents (2020 Census)

1.2 sq miland area

1cities and towns

1congressional district

10voting precincts

See it on the map All of Massachusetts

City and county

City or town	Share of ZIP residents
Springfield	100%

County	Share of ZIP residents
Hampden County	100%

Town or county subdivision	Share of ZIP residents
Springfield city	100%

Congressional district

Congressional district	Share of ZIP residents
Massachusetts's 1st congressional district (MA-01)	100%

Elected officials

Office	Member	Contact	Share of residents
U.S. Representative (MA-01)	Richard E. Neal (D)	202-225-5601	100%
U.S. Senator	Edward J. Markey (D)	202-224-2742 · contact form	statewide
U.S. Senator	Elizabeth Warren (D)	202-224-4543 · contact form	statewide
State Senator (Hampden District)	Adam Gómez (Democratic)		100%
State Representative (10th Hampden District)	Carlos González (Democratic)		78%
State Representative (11th Hampden District)	Bud Williams (Democratic)	413-316-4743	22%

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

Springfield website: https://www.springfield-ma.gov
Springfield laws: search for the Springfield, Massachusetts code of ordinances
Hampden County website: http://www.pvpc.org
Hampden County laws: search for the Hampden County, Massachusetts code of ordinances

State legislative districts

State senate district	Share of ZIP residents
Hampden District	100%

State house district	Share of ZIP residents
10th Hampden District	78%
11th Hampden District	22%

Voting precincts

10 voting precincts overlap ZIP 01105. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:01105")

ZIP 01105 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.