48309 ZIP Code — Rochester, MI

Oakland County, Michigan

ZIP code 48309 is located in Rochester, Michigan, within Oakland County. It covers approximately 15.56 square miles and serves a population of 30,626 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 248.

About ZIP code 48309

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $370,300. Owner-occupancy is high at 82%, well above the national average.

The gap between median ($117,439) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 5% is below the national average. 36% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with manufacturing as the leading industry. The average commute of 24 minutes is near the national average.

Educational attainment is high — 61% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 48309 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.

30,626

population

15.56

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

48309 ZIP code map

Cities in ZIP code 48309

Below are the cities the US Postal Service accepts for ZIP code 48309. Using any city not on this list may result in mail delivery delays.

City	Status
Rochester	Acceptable
Rochester	Acceptable
Rochester	Preferred

Nearby ZIP codes

48307 Rochester (3.2 mi) 48098 Troy (4.1 mi) 48342 Pontiac (5 mi) 48085 Troy (5.2 mi) 48306 Rochester (5.3 mi) 48340 Pontiac (5.4 mi) 48304 Bloomfield Hills (5.6 mi) 48341 Pontiac (5.8 mi) 48359 Lake Orion (6.4 mi) 48317 Utica (6.7 mi) 48316 Utica (7 mi) 48084 Troy (7 mi)

Demographics updated 05/2026

Population
Total population	30,626
Population density	1,968 / sq mi
State FIPS	26
County FIPS	125

Geography
Land area	15.56 sq mi
Water area	0.02 sq mi
Latitude	42.6581
Longitude	-83.1854
Timezone	Eastern (ET)
Area code	248

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.7%	30.7%	42.6%
$50k – $100k	24.4%	28.7%	31.1%
$100k – $200k	36.0%	28.4%	20.6%
Over $200k	15.9%	12.3%	5.7%

Demographics & statistics

30,626

Population

1,968

People per sq mi

42.6

Median age

$117,439

Median household income

$56,028

Per capita income

$370,300

Median home value

$1,539

Median monthly rent

81.5%

Home ownership

4.6%

Poverty rate

4.1%

Unemployment

9,646

Housing units

60.9%

Bachelor's or higher

Age distribution

Male Female

698

Under 5

740

808

5–9

855

1,007

10–14

1,067

1,414

15–19

1,498

1,040

20–24

1,101

1,225

25–34

1,298

1,809

35–44

1,917

2,072

45–54

2,194

957

55–59

1,013

1,015

60–64

1,076

1,636

65–74

1,734

785

75–84

832

405

85+

430

← Male

Female →

Age summary

Group	Count	%
Under 18	6,501	21.2%
18 and over	24,125	78.8%
65 and over	5,822	19.0%
Median age	42.6 years

Race & ethnicity

White 76.5%

Asian 11.1%

Two or more races 4.6%

Hispanic or Latino 3.5%

Black or African American 3.2%

Other race 0.8%

American Indian / Alaska Native 0.2%

Group	Count	%
White	24,305	76.5%
Asian	3,523	11.1%
Two or more races	1,471	4.6%
Hispanic or Latino	1,125	3.5%
Black or African American	1,026	3.2%
Other race	250	0.8%
American Indian / Alaska Native	51	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.7%	30.7%	42.6%
$50k – $100k	24.4%	28.7%	31.1%
$100k – $200k	36.0%	28.4%	20.6%
Over $200k	15.9%	12.3%	5.7%

Under $10k 2.1%

$10k–$15k 2.0%

$15k–$25k 3.4%

$25k–$35k 5.3%

$35k–$50k 7.2%

$50k–$75k 10.1%

$75k–$100k 11.1%

$100k–$150k 21.8%

$150k–$200k 12.5%

$200k+ 24.4%

Range	% of households
Under $10k	2.1%
$10k–$15k	2.0%
$15k–$25k	3.4%
$25k–$35k	5.3%
$35k–$50k	7.2%
$50k–$75k	10.1%
$75k–$100k	11.1%
$100k–$150k	21.8%
$150k–$200k	12.5%
$200k+	24.4%
Median income	$117,439

Housing

Home values

Under $50k 4.1%

$50k–$100k 1.5%

$100k–$150k 3.2%

$150k–$200k 5.8%

$200k–$300k 17.9%

$300k–$500k 51.9%

$500k–$1M 13.0%

$1M+ 2.6%

Housing overview

Metric	Value
Median home value	$370,300
Median rent / month	$1,539
Owner occupied	81.5%
Renter occupied	18.5%
Vacant	4.7%
Single-family detached	73.3%
Large apartment buildings	6.6%
Mobile homes	4.8%
Median rooms	7.1
Avg household size (owned)	2.77

Year built

Era	%
2020 or later	0.2%
2010–2019	7.0%
2000–2009	7.8%
1990–1999	12.2%
1980–1989	25.5%
1970–1979	22.7%
1960–1969	12.1%
1950–1959	7.7%
1940–1949	1.7%
1939 or earlier	3.2%

Bedrooms

Size	% of units
No bedroom (studio)	0.8%
1 bedroom	8.2%
2 bedrooms	17.3%
3 bedrooms	30.5%
4 bedrooms	37.5%
5+ bedrooms	5.7%

Vehicles per household

Vehicles	% of households
No vehicle	7.4%
1 vehicle	24.7%
2 vehicles	47.8%
3 or more	20.1%

Heating fuel

Fuel type	%
Utility gas	86.9%
Electricity	10.8%
Propane / LP gas	1.3%
Fuel oil	0.2%
No fuel used	0.6%

Households & families

Household type	Count	%
Married-couple family	6,690	60.0%
Cohabiting couple	394	3.5%
Male householder, no spouse	1,640	14.7%
Female householder, no spouse	2,431	21.8%
Households with children under 18	3,376	30.3%
Households with seniors (65+)	4,131	37.0%
Average household size	2.56

Marital status

Status	Male	Female
Never married	31.7%	28.5%
Married	57.2%	51.7%
Separated	0.4%	0.9%
Widowed	2.5%	8.7%
Divorced	8.1%	10.2%

Education

Less than 9th grade 1.5%

Some HS, no diploma 2.8%

HS graduate 14.0%

Some college, no degree 13.6%

Associate's degree 7.3%

Bachelor's degree 33.9%

Graduate / professional 26.9%

Metric	%
HS diploma or higher	95.8%
Bachelor's or higher	60.9%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	469	5.3%
Kindergarten	261	2.9%
Elementary school	3,058	34.4%
High school	1,674	18.8%
College / grad school	3,421	38.5%

Employment

Industry of employment

Manufacturing 22.4%

Education & healthcare 22.0%

Professional & management 13.8%

Retail trade 9.4%

Finance & real estate 7.8%

Arts, food & hospitality 7.7%

Construction 4.6%

Other services 3.4%

Public administration 2.8%

Wholesale trade 2.4%

Transportation & utilities 2.0%

Information 1.6%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	57.1%
Service	12.7%
Sales & office	18.7%
Natural resources & construction	4.8%
Production & transportation	6.7%

Employment type

Type	%
Private sector	86.5%
Government	8.2%
Self-employed	5.2%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	73.6%
Carpool	6.3%
Public transit	0.0%
Walk	2.6%
Work from home	16.6%
Other means	0.9%
Avg commute (minutes)	23.8

Poverty

All people 4.6%

Under 18 years 4.4%

18 and over 4.7%

Married-couple families 2.1%

Female-led households 10.8%

Income support

Source	% of households
Social Security	36.0%
Retirement income	30.2%
Supplemental Security	3.8%
Cash public assistance	1.3%
Food stamps / SNAP	2.6%

Health indicators

Condition	%
Obesity	29.1%
High blood pressure	29.6%
High cholesterol	34.2%
Diabetes	8.7%
Heart disease	5.4%
Stroke	2.3%
Asthma	9.7%
Arthritis	24.1%
Kidney disease	2.4%
Pulmonary disease	5.1%
Cancer	7.2%

Behavior / access	%
Smoking	11.2%
Binge drinking	17.2%
No physical activity	16.1%
Less than 7 hrs sleep	30.9%
Depression	17.0%
Fair or poor health	10.1%
Poor mental health	13.5%
Poor physical health	7.8%
No health insurance	6.5%
Visited doctor (checkup)	75.2%
Visited dentist	78.2%
Cholesterol screening	93.2%
Teeth loss	7.1%

Veterans & disability

Veterans	Count	%
Civilian veterans	938	3.9%

Disability	%
Any disability	10.2%
Under 18	3.4%
18–64 years	6.8%
65 and over	28.8%

Health insurance coverage

Type	%
Private insurance	85.3%
Public insurance	26.5%
No insurance	3.7%
Uninsured under 19	3.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	29,188	95.3%
Spanish	1,798	6.2%
Other Indo-European	146	0.5%
Asian & Pacific Islander	855	2.9%
Other languages	649	2.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	25,149	82.1%
Born in same state	24,926	81.4%
Born in different state	20,208	66.0%
Foreign born	223	0.7%
Naturalized citizen	5,477	17.9%
Not a US citizen	3,123	57.0%

Ancestry

Ancestry	Count	%
French	4,078	13.3%
Italian	3,170	10.4%
Arab	944	3.1%
English	418	1.4%
German	317	1%

Ancestry	Count	%
Polish	213	0.7%
Irish	161	0.5%
Dutch	149	0.5%
Norwegian	85	0.3%

Technology access

Metric	% of households
Computer access	36.4%
Internet access	95.2%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 48309

What city is ZIP code 48309 in?

ZIP code 48309 is primarily assigned to Rochester, Michigan.

What county is ZIP code 48309 in?

ZIP code 48309 falls within Oakland County, Michigan.

How educated is the population of ZIP code 48309?

61% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 48309 mostly owner-occupied?

82% of occupied units in ZIP code 48309 are owner-occupied, well above the national average.

Does ZIP code 48309 have a large retiree population?

36% of households in ZIP code 48309 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 48309?

The median home value in ZIP code 48309 is $370,300.

What timezone is ZIP code 48309 in?

ZIP code 48309 observes the EST timezone.