Boston, Massachusetts
Boston is a city in Suffolk County, Massachusetts, with 675,647 residents in 2020. It spans 2 congressional districts: MA-07 (74%) and MA-08 (26%). It spans 6 state senate and 16 state house districts.
County
| County | Share of residents |
|---|---|
| Suffolk County | 100% |
Congressional districts
| Congressional district | Share of residents |
|---|---|
| Massachusetts's 7th congressional district (MA-07) | 74% |
| Massachusetts's 8th congressional district (MA-08) | 26% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| Mayor | Michelle Wu | 617-635-4500 | citywide |
| U.S. Representative (MA-07) | Ayanna Pressley (D) | 202-225-5111 | 74% |
| U.S. Representative (MA-08) | Stephen F. Lynch (D) | 202-225-8273 | 26% |
| 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 |
Plus 22 state legislators across 22 districts. Look up an address for the exact ones.
Officials serving now (members of Congress until January 3, 2027). Sources: Mayors: Open States (public domain); State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Boston website: https://www.boston.gov/
- Boston council: Boston City Council
- Boston laws: search for the Boston, Massachusetts code of ordinances
- Suffolk County laws: search for the Suffolk County, Massachusetts code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| First Suffolk District | 27% |
| Second Suffolk District | 27% |
| Suffolk and Middlesex District | 16% |
| Third Suffolk District | 15% |
| Norfolk and Suffolk District | 12% |
| Middlesex and Suffolk District | 2.8% |
| State house district | Share of residents |
|---|---|
| 5th Suffolk District | 6.8% |
| 8th Suffolk District | 6.7% |
| 14th Suffolk District | 6.7% |
| 15th Suffolk District | 6.7% |
| 7th Suffolk District | 6.7% |
| 6th Suffolk District | 6.6% |
| 4th Suffolk District | 6.4% |
| 3rd Suffolk District | 6.4% |
| 1st Suffolk District | 6.4% |
| 13th Suffolk District | 6.3% |
| 9th Suffolk District | 6.2% |
| 17th Suffolk District | 6.2% |
| 10th Suffolk District | 6.1% |
| 18th Suffolk District | 5.8% |
| 12th Suffolk District | 5.3% |
| 2nd Suffolk District | 4.8% |
ZIP codes
Percentages mark ZIPs only partly in Boston: the share of that ZIP's residents living in it.
- 02108
- 02109
- 02110
- 02111
- 02113
- 02114
- 02115
- 02116
- 02118
- 02119
- 02120
- 02121
- 02122
- 02124
- 02125
- 02126
- 02127
- 02128
- 02129
- 02130
- 02131
- 02132
- 02133
- 02134
- 02135
- 02136
- 02163
- 02199
- 02205
- 02210
- 02215
- 02445 (1.3%)
- 02446 (0.1%)
- 02467 (20%)
Get this in your AI agent
Your agent can get Boston'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:2507000")
Boston 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.