ZIP code 48420: Vienna, MI
ZIP code 48420 is in Clio (12% of residents), in Genesee County (97%), Tuscola County (2.4%) and Saginaw County (0.2%), Michigan. 88% of its residents live outside city limits. It is in Michigan's 8th congressional district. Its state senate districts are State Senate District 26 (98%) and State Senate District 27 (1.6%); its state house districts are State House District 97 (40%), State House District 69 (37%) and State House District 67 (23%).
See it on the mapAll of Michigan
City and county
| City or town | Share of ZIP residents |
|---|---|
| Clio | 12% |
| County | Share of ZIP residents |
|---|---|
| Genesee County | 97% |
| Tuscola County | 2.4% |
| Saginaw County | 0.2% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Vienna charter township | 58% |
| Thetford township | 23% |
| Clio city | 12% |
| Montrose charter township | 3.3% |
| Arbela township | 2.4% |
| Mount Morris township | 1.6% |
| Birch Run township | 0.2% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 8th congressional district (MI-08) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-08) | Kristen McDonald Rivet (D) | 202-225-3611 | 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 26) | Kevin Daley (R) | 98% | |
| State Senator (State Senate District 27) | John Cherry (Democratic) | 1.6% | |
| State Representative (State House District 97) | Matt Bierlein (R) | 40% | |
| State Representative (State House District 69) | Jaz Martus (Democratic) | 37% | |
| State Representative (State House District 67) | Phil Green (R) | 23% |
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
- Clio website: http://www.clio.govoffice.com/
- Clio laws: search for the Clio, Michigan code of ordinances
- Genesee County website: http://www.gc4me.com
- Genesee County laws: search for the Genesee County, Michigan code of ordinances
- Tuscola County website: http://www.tuscolacounty.org
- Tuscola County laws: search for the Tuscola County, Michigan code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 26 | 98% |
| State Senate District 27 | 1.6% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 97 | 40% |
| State House District 69 | 37% |
| State House District 67 | 23% |
Voting precincts
13 voting precincts overlap ZIP 48420. Map them, with each precinct's share of the ZIP's residents.
Get this in your AI agent
Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:zcta:48420")
ZIP 48420 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.