Marine City, Michigan
Marine City is a city in St. Clair County, Michigan, with 4,079 residents in 2020. It is in Michigan's 9th congressional district. Its state senate district is State Senate District 25; its state house district is State House District 63.
County
| County | Share of residents |
|---|---|
| St. Clair County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Michigan's 9th congressional district (MI-09) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-09) | Lisa C. McClain (R) | 202-225-2106 | 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 25) | Dan Lauwers (R) | 100% | |
| State Representative (State House District 63) | Jay DeBoyer (R) | 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
- Marine City website: http://www.visitmarinecity.com/
- Marine City laws: search for the Marine City, Michigan code of ordinances
- St. Clair County laws: search for the St. Clair County, Michigan code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 25 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 63 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Marine City: the share of that ZIP's residents living in it.
- 48039 (55%)
Get this in your AI agent
Your agent can get Marine City'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:2651600")
Marine City 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.