Codes.zone

Grass Lake Michigan ZIP Codes

Grass Lake holds a single ZIP code.

Every ZIP code in Grass Lake

The complete list of Grass Lake, Michigan ZIP codes with the county each falls in.
ZIP codeCounty
49240Jackson County

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Grass Lake codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Grass Lake. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

How these codes cluster

Every Grass Lake ZIP code begins 492. Those first three digits identify the sectional center facility that processes mail for this part of Michigan. Statewide that range covers 62 ZIP codes, so Grass Lake accounts for 2% of it.

Every Michigan ZIP prefix and the region it covers →

Area codes covering Grass Lake

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Grass Lake occupies.

Grass Lake Michigan area codes in full →

Where Grass Lake's ZIP codes sit

Each point is one Grass Lake ZIP code, plotted from its record coordinates.
  • Reference points and footprint
  • Not an official NANPA boundary
  • Not a USPS delivery area

Cities near Grass Lake

The closest places to Grass Lake with their own ZIP code list, nearest first.
CityDistanceZIP codes
Jackson Michigan ZIP codes10 mi4 ZIP codes
Brooklyn Michigan ZIP codes10 mi1 ZIP code
Chelsea Michigan ZIP codes10 mi1 ZIP code
Manchester Michigan ZIP codes11 mi1 ZIP code
Stockbridge Michigan ZIP codes14 mi1 ZIP code
Cement City Michigan ZIP codes14 mi1 ZIP code
Onsted Michigan ZIP codes17 mi1 ZIP code
Dexter Michigan ZIP codes18 mi1 ZIP code

Straight-line distance between place reference points, not driving distance.