Home > MI > Jackson County > Grass Lake > Zip 49240

Zip Code 49240 — Grass Lake, MI

ZIP Code 49240 is associated with Grass Lake, MI, in Jackson County. The listed population estimate is 8,863; estimated density is 32.9 people per square mile. Among records with population estimates, it ranks #5 of 17 in Jackson County and #354 of 987 in MI.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.278210, -84.180270)

Data MetricLocal Statistic
Postal / Zip Code49240
Primary CityGrass Lake
State / ProvinceMI
CountyJackson
Total Population8,863
Population Density32.9 people/sq mi
TimezoneAmerica/Detroit

How 49240 Compares

MetricZIP 49240Jackson County recordsMI records
Population estimate8,863159,537 (sum)10,077,716 (sum)
Population Density32.9 /sq mi----
County population rank#5 of 17----
State population rank#354 of 987----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MI

ZIP CodeCityDistancePopulation estimate
ZIP 48118Chelsea7.6 mi13,246
ZIP 49254Michigan Center8.1 mi3,484
ZIP 49259Munith8.1 mi2,653
ZIP 49263Norvell8.3 miN/A
ZIP 49261Napoleon8.7 mi199

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →