49240 ZIP Code Profile, Map, Data & Demographics

ZIP Code Type: STANDARD
County: Jackson County
Centroid: Latitude 42.283, Longitude -84.201
Time Zone: Eastern Time Zone (UTC -5 hours)
Observes DST: Yes

ZIP Code 49240 has segments in 2 Counties (Jackson, Washtenaw).

Businesses Addresses: 133
PO Box Addresses: 263
Residential Addresses: 3,700

Multi-Family Addresses: 0
Single Family Addresses: 3,700

The ZIP Code maps and database are updated 4 times per year.
Database updated: April 1, 2025, Maps updated: May 1, 2024.

Grass Lake, MI 49240 Data & Demographics (As of July 1, 2024)

POPULATION
Total Population	8,958 (100%)
Population in Households	8,941 (99.8%)
Population in Families	7,592 (84.8%)
Population in Group Quarters¹	17 ( 0.2%)
Population Density	89
Diversity Index²	19


INCOME
Median Household Income	$86,575
Average Household Income	$105,536
% of Income for Mortgage⁴	21%
Per Capita Income	$41,484
Wealth Index⁵	98
Socioeconomic Status Index⁶	Moderate (64.7)

HOUSING
Total HU (Housing Units)	3,848 (100%)
Owner Occupied HU	3,217 (83.6%)
Renter Occupied HU	304 ( 7.9%)
Vacant Housing Units	327 ( 8.5%)
Median Home Value	$286,955
Average Home Value	$328,614
Housing Affordability Index³	113

HOUSEHOLDS
Total Households	3,521
Average Household Size	2.54
Family Households	2,548
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Grass Lake, MI 49240 - Peer Comparisons by Rank and Percentile

The table below compares 49240 to the other 958 ZIP Codes in Michigan by rank and percentile using July 1, 2024 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2024	2024-2029
Population	0.14%	0.08%
Households	0.45%	0.51%
Families		0.51%
Median Household Income		2.28%
Per Capita Income		3.20%
Owner Occupied HU		0.84%

Variable Description	Rank	Percentile
Total Population	# 350	64th
Population Density	# 530	45th
Median Household Income	# 180	81st
Housing Affordability Index	# 421	44th
Per Capita Income	# 298	69th
Diversity Index	# 643	32nd

49240 ZIP Code Profile, Map, Data & Demographics

ZIP Code 49240: Basic Data & USPS Preferred City Name

Grass Lake, MI 49240 Data & Demographics (As of July 1, 2024)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Grass Lake, MI 49240 - Peer Comparisons by Rank and Percentile

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