Lynnfield, Massachusetts
Lynnfield is a Census-designated place (an unincorporated community) in Essex County, Massachusetts, with 13,000 residents in 2020. It is in Massachusetts's 6th congressional district. Its state senate district is Third Essex District; its state house district is 20th Middlesex District.
County
| County | Share of residents |
|---|---|
| Essex County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Massachusetts's 6th congressional district (MA-06) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MA-06) | Seth Moulton (D) | 202-225-8020 | 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 (Third Essex District) | Brendan Crighton (Democratic) | 100% | |
| State Representative (20th Middlesex District) | Brad Jones (R) | 978-664-5936 | 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
- Lynnfield laws: search for the Lynnfield, Massachusetts code of ordinances
- Essex County laws: search for the Essex County, Massachusetts code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| Third Essex District | 100% |
| State house district | Share of residents |
|---|---|
| 20th Middlesex District | 100% |
ZIP codes
Percentages mark ZIPs only partly in Lynnfield: the share of that ZIP's residents living in it.
- 01940 (98%)
Get this in your AI agent
Your agent can get Lynnfield'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:2537595")
Lynnfield 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.