Mason, Michigan
Mason is a city in Ingham County, Michigan, with 8,283 residents in 2020. It is in Michigan's 7th congressional district. Its state senate district is State Senate District 21; its state house district is State House District 73.
County
| County | Share of residents |
|---|---|
| Ingham County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Michigan's 7th congressional district (MI-07) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-07) | Tom Barrett (R) | 202-225-4872 | 100% |
| U.S. Senator | Elissa Slotkin (D) | 202-224-4822 | statewide |
| U.S. Senator | Gary C. Peters (D) | 202-224-6221 · contact form | statewide |
| State Senator (State Senate District 21) | Sarah Anthony (Democratic) | 100% | |
| State Representative (State House District 73) | Julie Brixie (Democratic) | 100% |
Elected under MI's previous legislative map; the district's lines changed for 2026.
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
- Mason website: http://www.mason.mi.us
- Mason laws: search for the Mason, Michigan code of ordinances
- Ingham County website: http://www.ingham.org
- Ingham County laws: search for the Ingham County, Michigan code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 21 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 73 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Mason: the share of that ZIP's residents living in it.
- 48854 (42%)
Get this in your AI agent
Your agent can get Mason'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:2652180")
Mason 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.