ZIP code 48423: Davison, MI
ZIP code 48423 is in Davison (15% of residents), in Genesee County (100%) and Lapeer County (0.4%), Michigan. 85% of its residents live outside city limits. It is in Michigan's 8th congressional district (100%) and Michigan's 9th congressional district (0.4%). Its state senate districts are State Senate District 26 (99%) and State Senate District 23 (0.8%); its state house districts are State House District 68 (77%) and State House District 67 (23%).
See it on the mapAll of Michigan
City and county
| City or town | Share of ZIP residents |
|---|---|
| Davison | 15% |
| County | Share of ZIP residents |
|---|---|
| Genesee County | 100% |
| Lapeer County | 0.4% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Davison township | 60% |
| Richfield township | 23% |
| Davison city | 15% |
| Atlas township | 0.8% |
| Genesee charter township | 0.3% |
| Oregon township | 0.2% |
| Elba township | 0.2% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 8th congressional district (MI-08) | 100% |
| Michigan's 9th congressional district (MI-09) | 0.4% |
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.
Members of Congress
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-08) | Kristen McDonald Rivet (D) | 202-225-3611 | 100% |
| U.S. Representative (MI-09) | Lisa C. McClain (R) | 202-225-2106 | 0.4% |
| U.S. Senator | Elissa Slotkin (D) | 202-224-4822 | statewide |
| U.S. Senator | Gary C. Peters (D) | 202-224-6221 · contact form | statewide |
Members serving now (119th Congress, until January 3, 2027). Source: Members of Congress: the @unitedstates project, congress-legislators (CC0).
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 26 | 99% |
| State Senate District 23 | 0.8% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 68 | 77% |
| State House District 67 | 23% |
Voting precincts
16 voting precincts overlap ZIP 48423. 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:48423")
ZIP 48423 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.