48189 ZIP Code — Whitmore Lake, MI
Washtenaw County, Michigan
ZIP code 48189 is located in Whitmore Lake, Michigan, within Washtenaw County. It covers approximately 34.18 square miles and serves a population of 13,718 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 734.
About ZIP code 48189
The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $268,900. Owner-occupancy is high at 79%, well above the national average.
Median household income is $78,879. 34% of households receive Social Security income, suggesting a notable retiree or disability population.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 27 minutes is near the national average.
Educational attainment is near the national average, with 37% of residents holding a bachelor's degree or higher.
Overall, ZIP code 48189 reflects a community defined by high homeownership and a significant Social Security-dependent population.
13,718
population
34.18
sq mi land
Standard
ZIP type
Eastern (ET)
timezone
48189 ZIP code map
Cities in ZIP code 48189
Below are the cities the US Postal Service accepts for ZIP code 48189. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Whitmore Lake | Acceptable |
| Whitmore Lake | Preferred |
Nearby ZIP codes
48116 Brighton (6.7 mi)
48130 Dexter (6.9 mi)
48105 Ann Arbor (7.1 mi)
48178 South Lyon (7.4 mi)
48169 Pinckney (8.4 mi)
48109 Ann Arbor (9.3 mi)
48103 Ann Arbor (10 mi)
48104 Ann Arbor (10.2 mi)
48165 New Hudson (10.7 mi)
48114 Brighton (11.9 mi)
48843 Howell (12.8 mi)
48168 Northville (13 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 13,718 |
| Population density | 401 / sq mi |
| State FIPS | 26 |
| County FIPS | 161 |
| Geography | |
|---|---|
| Land area | 34.18 sq mi |
| Water area | 2.25 sq mi |
| Latitude | 42.4081 |
| Longitude | -83.7945 |
| Timezone | Eastern (ET) |
| Area code | 734 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 31.5% | 34.6% | 42.6% |
| $50k – $100k | 36.9% | 28.3% | 31.1% |
| $100k – $200k | 24.0% | 25.3% | 20.6% |
| Over $200k | 7.7% | 11.7% | 5.7% |
Demographics & statistics
13,718
Population
401
People per sq mi
43.7
Median age
$78,879
Median household income
$46,064
Per capita income
$268,900
Median home value
$1,189
Median monthly rent
78.8%
Home ownership
7.9%
Poverty rate
2.2%
Unemployment
5,060
Housing units
36.7%
Bachelor's or higher
Age distribution
Male
Female
339
Under 5
303
297
5–9
267
266
10–14
239
426
15–19
382
365
20–24
327
1,133
25–34
1,015
891
35–44
798
1,017
45–54
912
615
55–59
551
493
60–64
442
880
65–74
788
373
75–84
335
139
85+
125
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 2,251 | 16.4% |
| 18 and over | 11,467 | 83.6% |
| 65 and over | 2,640 | 19.2% |
| Median age | 43.7 years | |
Race & ethnicity
White
94.2%
Hispanic or Latino
1.6%
Two or more races
1.5%
Black or African American
0.9%
Asian
0.8%
Other race
0.8%
American Indian / Alaska Native
0.2%
| Group | Count | % |
|---|---|---|
| White | 13,136 | 94.2% |
| Hispanic or Latino | 226 | 1.6% |
| Two or more races | 208 | 1.5% |
| Black or African American | 130 | 0.9% |
| Asian | 111 | 0.8% |
| Other race | 111 | 0.8% |
| American Indian / Alaska Native | 22 | 0.2% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 31.5% | 34.6% | 42.6% |
| $50k – $100k | 36.9% | 28.3% | 31.1% |
| $100k – $200k | 24.0% | 25.3% | 20.6% |
| Over $200k | 7.7% | 11.7% | 5.7% |
Under $10k
3.4%
$10k–$15k
1.6%
$15k–$25k
5.3%
$25k–$35k
4.7%
$35k–$50k
12.1%
$50k–$75k
18.7%
$75k–$100k
15.5%
$100k–$150k
18.1%
$150k–$200k
10.2%
$200k+
10.3%
| Range | % of households |
|---|---|
| Under $10k | 3.4% |
| $10k–$15k | 1.6% |
| $15k–$25k | 5.3% |
| $25k–$35k | 4.7% |
| $35k–$50k | 12.1% |
| $50k–$75k | 18.7% |
| $75k–$100k | 15.5% |
| $100k–$150k | 18.1% |
| $150k–$200k | 10.2% |
| $200k+ | 10.3% |
| Median income | $78,879 |
Housing
Home values
Under $50k
14.4%
$50k–$100k
4.5%
$100k–$150k
2.7%
$150k–$200k
9.8%
$200k–$300k
27.8%
$300k–$500k
29.9%
$500k–$1M
10.1%
$1M+
0.8%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $268,900 |
| Median rent / month | $1,189 |
| Owner occupied | 78.8% |
| Renter occupied | 21.2% |
| Vacant | 4.9% |
| Single-family detached | 71.5% |
| Large apartment buildings | 3.4% |
| Mobile homes | 16.7% |
| Median rooms | 6.2 |
| Avg household size (owned) | 2.39 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.2% |
| 2010–2019 | 3.4% |
| 2000–2009 | 12.4% |
| 1990–1999 | 25.5% |
| 1980–1989 | 17.5% |
| 1970–1979 | 12.3% |
| 1960–1969 | 7.4% |
| 1950–1959 | 6.8% |
| 1940–1949 | 5.7% |
| 1939 or earlier | 8.8% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.2% |
| 1 bedroom | 4.0% |
| 2 bedrooms | 21.7% |
| 3 bedrooms | 48.2% |
| 4 bedrooms | 23.1% |
| 5+ bedrooms | 2.9% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 2.6% |
| 1 vehicle | 31.6% |
| 2 vehicles | 44.4% |
| 3 or more | 21.4% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 82.7% |
| Electricity | 8.6% |
| Propane / LP gas | 4.4% |
| Fuel oil | 2.1% |
| Wood | 1.8% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 2,933 | 48.7% |
| Cohabiting couple | 551 | 9.1% |
| Male householder, no spouse | 1,354 | 22.5% |
| Female householder, no spouse | 1,186 | 19.7% |
| Households with children under 18 | 1,406 | 23.3% |
| Households with seniors (65+) | 1,814 | 30.1% |
| Average household size | 2.22 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 32.0% | 28.3% |
| Married | 49.4% | 51.7% |
| Separated | 0.3% | 0.6% |
| Widowed | 3.2% | 7.4% |
| Divorced | 15.1% | 12.1% |
Education
Less than 9th grade
0.8%
Some HS, no diploma
2.4%
HS graduate
28.2%
Some college, no degree
23.7%
Associate's degree
8.2%
Bachelor's degree
20.6%
Graduate / professional
16.0%
| Metric | % |
|---|---|
| HS diploma or higher | 96.8% |
| Bachelor's or higher | 36.7% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 102 | 4.3% |
| Kindergarten | 135 | 5.7% |
| Elementary school | 662 | 28.0% |
| High school | 687 | 29.1% |
| College / grad school | 776 | 32.9% |
Employment
Industry of employment
Education & healthcare
28.1%
Manufacturing
14.7%
Professional & management
13.9%
Construction
10.2%
Retail trade
8.0%
Arts, food & hospitality
6.8%
Transportation & utilities
4.1%
Other services
3.4%
Finance & real estate
3.3%
Wholesale trade
3.2%
Information
1.9%
Public administration
1.7%
Agriculture & mining
0.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 48.0% |
| Service | 13.3% |
| Sales & office | 16.9% |
| Natural resources & construction | 9.7% |
| Production & transportation | 12.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 81.4% |
| Government | 12.1% |
| Self-employed | 6.5% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 73.8% |
| Carpool | 6.4% |
| Public transit | 0.0% |
| Walk | 0.4% |
| Work from home | 18.7% |
| Other means | 0.6% |
| Avg commute (minutes) | 27.0 |
Poverty
All people
7.9%
Under 18 years
7.5%
18 and over
8.0%
Married-couple families
3.1%
Female-led households
19.7%
Income support
| Source | % of households |
|---|---|
| Social Security | 33.5% |
| Retirement income | 26.0% |
| Supplemental Security | 2.7% |
| Cash public assistance | 1.8% |
| Food stamps / SNAP | 9.8% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 33.3% |
| High blood pressure | 27.3% |
| High cholesterol | 30.5% |
| Diabetes | 8.3% |
| Heart disease | 5.1% |
| Stroke | 2.3% |
| Asthma | 11.0% |
| Arthritis | 25.2% |
| Kidney disease | 2.3% |
| Pulmonary disease | 5.8% |
| Cancer | 6.1% |
| Behavior / access | % |
|---|---|
| Smoking | 17.0% |
| Binge drinking | 20.2% |
| No physical activity | 16.1% |
| Less than 7 hrs sleep | 32.8% |
| Depression | 22.9% |
| Fair or poor health | 10.7% |
| Poor mental health | 15.7% |
| Poor physical health | 8.9% |
| No health insurance | 7.9% |
| Visited doctor (checkup) | 70.5% |
| Visited dentist | 73.1% |
| Cholesterol screening | 91.8% |
| Teeth loss | 8.7% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 656 | 5.7% |
| Disability | % |
|---|---|
| Any disability | 15.5% |
| Under 18 | 6.4% |
| 18–64 years | 13.1% |
| 65 and over | 31.2% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 81.7% |
| Public insurance | 34.6% |
| No insurance | 2.6% |
| Uninsured under 19 | 1.5% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 13,076 | 95.3% |
| Spanish | 9 | 0.1% |
| Other Indo-European | 3 | 0.0% |
| Asian & Pacific Islander | 6 | 0.0% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 13,356 | 97.4% |
| Born in same state | 13,226 | 96.4% |
| Born in different state | 10,889 | 79.4% |
| Foreign born | 130 | 0.9% |
| Naturalized citizen | 362 | 2.6% |
| Not a US citizen | 230 | 63.5% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 2,025 | 14.8% |
| Italian | 1,909 | 13.9% |
| Arab | 596 | 4.3% |
| German | 341 | 2.5% |
| Polish | 196 | 1.4% |
| Ancestry | Count | % |
|---|---|---|
| English | 166 | 1.2% |
| Irish | 144 | 1% |
| Norwegian | 48 | 0.3% |
| Dutch | 36 | 0.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 43.9% |
| Internet access | 97.1% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 48189
What city is ZIP code 48189 in?
ZIP code 48189 is primarily assigned to Whitmore Lake, Michigan.
What county is ZIP code 48189 in?
ZIP code 48189 falls within Washtenaw County, Michigan.
What is the population of ZIP code 48189?
ZIP code 48189 has an estimated population of 13,718 residents, with a density of 401 people per square mile.
What is the typical home value in ZIP code 48189?
The median home value in ZIP code 48189 is $268,900.
What is the median household income in ZIP code 48189?
The median household income in ZIP code 48189 is $78,879, above the national median of ~$75,000.
What timezone is ZIP code 48189 in?
ZIP code 48189 observes the EST timezone.