ZIP code 55309: Big Lake, MN
ZIP code 55309 is in Big Lake (58% of residents), in Sherburne County, Minnesota. 42% of its residents live outside city limits. It is in Minnesota's 6th congressional district. Its state senate district is State Senate District 27; its state house district is State House District 27A.
See it on the mapAll of Minnesota
City and county
| City or town | Share of ZIP residents |
|---|---|
| Big Lake | 58% |
| County | Share of ZIP residents |
|---|---|
| Sherburne County | 100% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Big Lake city | 58% |
| Big Lake township | 22% |
| Orrock township | 14% |
| Becker township | 6.2% |
| Becker city | land only |
Congressional district
| Congressional district | Share of ZIP residents |
|---|---|
| Minnesota's 6th congressional district (MN-06) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (MN-06) | Tom Emmer (R) | 202-225-2331 | 100% |
| U.S. Senator | Amy Klobuchar (D) | 202-224-3244 · contact form | statewide |
| U.S. Senator | Tina Smith (D) | 202-224-5641 · contact form | statewide |
| State Senator (State Senate District 27) | Andrew Mathews (R) | 100% | |
| State Representative (State House District 27A) | Shane Mekeland (R) | 100% |
Elected under MN'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
- Big Lake website: http://www.biglakemn.org/
- Big Lake laws: search for the Big Lake, Minnesota code of ordinances
- Sherburne County website: http://www.co.sherburne.mn.us
- Sherburne County laws: search for the Sherburne County, Minnesota code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 27 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 27A | 100% |
Voting precincts
9 voting precincts overlap ZIP 55309. 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:55309")
ZIP 55309 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.