ZIP code 49423: Holland, MI
ZIP code 49423 is in Holland (73% of residents), in Ottawa County (64%) and Allegan County (36%), Michigan. 27% of its residents live outside city limits. It is in Michigan's 4th congressional district. Its state senate districts are State Senate District 31 (98%) and State Senate District 20 (2.2%); its state house districts are State House District 86 (88%), State House District 43 (7.4%) and State House District 85 (4.1%).
See it on the mapAll of Michigan
City and county
| City or town | Share of ZIP residents |
|---|---|
| Holland | 73% |
| County | Share of ZIP residents |
|---|---|
| Ottawa County | 64% |
| Allegan County | 36% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Holland city | 57% |
| Holland city | 17% |
| Laketown township | 12% |
| Fillmore township | 5.2% |
| Holland charter township | 3.3% |
| Park township | 2.5% |
| Overisel township | 2.1% |
| Zeeland charter township | 1.6% |
| Manlius township | <0.1% |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Michigan's 4th congressional district (MI-04) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MI-04) | Bill Huizenga (R) | 202-225-4401 | 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 31) | Roger Victory (R) | 98% | |
| State Senator (State Senate District 20) | Aric Nesbitt (R) | 2.2% | |
| State Representative (State House District 86) | Nancy DeBoer (R) | 88% | |
| State Representative (State House District 43) | Rachelle Smit (R) | 7.4% | |
| State Representative (State House District 85) | Brad Slagh (R) | 4.1% |
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
- Holland website: https://www.cityofholland.com/
- Holland laws: search for the Holland, Michigan code of ordinances
- Ottawa County website: http://www.miottawa.org
- Ottawa County laws: search for the Ottawa County, Michigan code of ordinances
- Allegan County website: http://www.allegancounty.org
- Allegan County laws: search for the Allegan County, Michigan code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 31 | 98% |
| State Senate District 20 | 2.2% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 86 | 88% |
| State House District 43 | 7.4% |
| State House District 85 | 4.1% |
Voting precincts
21 voting precincts overlap ZIP 49423. 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:49423")
ZIP 49423 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.