Rules for ZIP Code 48420
Clio, MI · Genesee County
ZIP 48420 is governed by Vienna Township, MI. We do not hold its code yet, and Genesee County ordinances do not apply inside its limits.
ZIP code 48420 lies in Vienna Township, MI, which holds about 57% of the ZIP's residents and writes its own local code. We have not added Vienna's ordinances yet, so nothing is shown below: Genesee County rules govern only unincorporated land and do not reach inside Vienna.
ZIP codes do not follow city lines. 48420 also covers:
- Thetford Township~24% of residents · not covered yet
- city of Clio~12% of residents · not covered yet
Shares are estimates from 2020 Census geography. If your address is in one of these, its rules apply instead.
Each topic below links to the full ordinance breakdown with specific code sections, fine amounts, and answers to common questions. The data is sourced from the official municipal code and verified by our editorial team.
Vienna is not covered yet
Vienna Township writes its own code; the county's rules do not apply inside it.Request Vienna coverage →
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