ZIP code 48306: Rochester Hills, MI
ZIP code 48306 is in Rochester Hills (50% of residents) and Rochester (4.8%), in Oakland County (99%) and Macomb County (1.2%), Michigan. 46% of its residents live outside city limits. It is in Michigan's 10th congressional district (54%) and Michigan's 9th congressional district (46%). Its state senate districts are State Senate District 9 (54%), State Senate District 23 (44%) and State Senate District 24 (1.2%); its state house districts are State House District 55 (63%), State House District 54 (22%) and State House District 66 (15%).
See it on the mapAll of Michigan
City and county
| City or town | Share of ZIP residents |
|---|---|
| Rochester Hills | 50% |
| Rochester | 4.8% |
| County | Share of ZIP residents |
|---|---|
| Oakland County | 99% |
| Macomb County | 1.2% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Rochester Hills city | 50% |
| Oakland charter township | 44% |
| Rochester city | 4.8% |
| Washington charter township | 1.2% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 10th congressional district (MI-10) | 54% |
| Michigan's 9th congressional district (MI-09) | 46% |
This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-10) | John James (R) | 202-225-4961 | 54% |
| U.S. Representative (MI-09) | Lisa C. McClain (R) | 202-225-2106 | 46% |
| 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 9) | Michael Webber (R) | 54% | |
| State Senator (State Senate District 23) | Jim Runestad (R) | 44% | |
| State Senator (State Senate District 24) | Ruth Johnson (R) | 1.2% | |
| State Representative (State House District 55) | Mark Tisdel (R) | 63% | |
| State Representative (State House District 54) | Donni Steele (R) | 22% | |
| State Representative (State House District 66) | Josh Schriver (R) | 15% |
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
- Rochester Hills website: https://www.rochesterhills.org/
- Rochester Hills laws: search for the Rochester Hills, Michigan code of ordinances
- Rochester website: https://www.ci.rochester.mi.us/
- Rochester laws: search for the Rochester, Michigan code of ordinances
- Oakland County website: http://www.oakgov.com
- Oakland County laws: search for the Oakland County, Michigan code of ordinances
- Macomb County laws: search for the Macomb County, Michigan code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 9 | 54% |
| State Senate District 23 | 44% |
| State Senate District 24 | 1.2% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 55 | 63% |
| State House District 54 | 22% |
| State House District 66 | 15% |
Voting precincts
12 voting precincts overlap ZIP 48306. 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:48306")
ZIP 48306 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.