Boundary Atlas

ZIP code 48818: Crystal, MI

ZIP code 48818 is in Crystal (39% of residents), in Montcalm County, Michigan. 61% of its residents live outside city limits. It is in Michigan's 2nd congressional district. Its state senate district is State Senate District 33; its state house districts are State House District 93 (96%) and State House District 91 (4.3%).

2,302residents (2020 Census)
24.7 sq miland area
1cities and towns
1congressional district
3voting precincts

See it on the mapAll of Michigan

City and county

City or townShare of ZIP residents
Crystal39%

CountyShare of ZIP residents
Montcalm County100%

Town or county subdivisionShare of ZIP residents
Crystal township87%
Ferris township9.1%
Evergreen township4.3%

Congressional district

Congressional districtShare of ZIP residents
Michigan's 2nd congressional district (MI-02)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 33100%

State house districtShare of ZIP residents
State House District 9396%
State House District 914.3%

Voting precincts

3 voting precincts overlap ZIP 48818. Map them, with each precinct's share of the ZIP's residents.

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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:48818")

ZIP 48818 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.