Algonac, Michigan
Algonac is a city in St. Clair County, Michigan, with 4,196 residents in 2020. It is in Michigan's 9th congressional district. Its state senate district is State Senate District 12; 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 12) | Kevin Hertel (Democratic) | 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
- Algonac laws: search for the Algonac, 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 12 | 100% |
| State house district | Share of residents |
|---|---|
| State House District 63 | 100% |
ZIP codes
Percentages mark ZIPs only partly in Algonac: the share of that ZIP's residents living in it.
- 48001 (36%)
Get this in your AI agent
Your agent can get Algonac'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:2601180")
Algonac 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.