48331 ZIP Code — Farmington, MI

Oakland County, Michigan

ZIP code 48331 is located in Farmington, Michigan, within Oakland County. It covers approximately 9.31 square miles and serves a population of 22,152 residents. This is a standard ZIP code in the Eastern (ET) timezone, served by area code 248.

About ZIP code 48331

The housing stock consists of a mix of housing types. Most homes were built in the 1980s, giving the area an established character. Median home value is $361,900. Owner-occupancy is high at 78%, well above the national average.

Median household income is $120,929. The poverty rate of 5% is below the national average. 38% 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 25 minutes is near the national average.

Educational attainment is high — 66% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 48331 reflects a community defined by a highly educated population, high homeownership, and a significant Social Security-dependent population.

22,152

population

9.31

sq mi land

Standard

ZIP type

Eastern (ET)

timezone

48331 ZIP code map

Cities in ZIP code 48331

Below are the cities the US Postal Service accepts for ZIP code 48331. Using any city not on this list may result in mail delivery delays.

City	Status
Farmington	Acceptable
Farmington	Acceptable
Farmington	Preferred

Nearby ZIP codes

48335 Farmington (3 mi) 48334 Farmington (3 mi) 48377 Novi (3.7 mi) 48375 Novi (4.1 mi) 48336 Farmington (4.2 mi) 48390 Walled Lake (5 mi) 48152 Livonia (5.7 mi) 48034 Southfield (6 mi) 48374 Novi (6.5 mi) 48033 Southfield (6.6 mi) 48301 Bloomfield Hills (7 mi) 48393 Wixom (7.3 mi)

Demographics updated 06/2026

Population
Total population	22,152
Population density	2,379 / sq mi
State FIPS	26
County FIPS	125

Geography
Land area	9.31 sq mi
Water area	0.01 sq mi
Latitude	42.5054
Longitude	-83.4075
Timezone	Eastern (ET)
Area code	248

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.4%	30.7%	42.6%
$50k – $100k	25.4%	28.7%	31.1%
$100k – $200k	34.5%	28.4%	20.6%
Over $200k	16.7%	12.3%	5.7%

Demographics & statistics

22,152

Population

2,379

People per sq mi

46.8

Median age

$120,929

Median household income

$59,872

Per capita income

$361,900

Median home value

$1,740

Median monthly rent

78.0%

Home ownership

4.9%

Poverty rate

6.2%

Unemployment

7,381

Housing units

66.3%

Bachelor's or higher

Age distribution

Male Female

442

Under 5

469

437

5–9

462

600

10–14

635

567

15–19

600

685

20–24

726

1,337

25–34

1,416

1,071

35–44

1,135

1,582

45–54

1,675

691

55–59

731

900

60–64

953

1,422

65–74

1,507

676

75–84

716

348

85+

369

← Male

Female →

Age summary

Group	Count	%
Under 18	3,806	17.2%
18 and over	18,346	82.8%
65 and over	5,038	22.7%
Median age	46.8 years

Race & ethnicity

White 65.2%

Black or African American 15%

Asian 11.8%

Two or more races 4.2%

Hispanic or Latino 2.6%

Other race 1.2%

Group	Count	%
White	14,834	65.2%
Black or African American	3,407	15%
Asian	2,681	11.8%
Two or more races	957	4.2%
Hispanic or Latino	601	2.6%
Other race	273	1.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.4%	30.7%	42.6%
$50k – $100k	25.4%	28.7%	31.1%
$100k – $200k	34.5%	28.4%	20.6%
Over $200k	16.7%	12.3%	5.7%

Under $10k 1.9%

$10k–$15k 0.6%

$15k–$25k 3.7%

$25k–$35k 5.4%

$35k–$50k 5.1%

$50k–$75k 9.4%

$75k–$100k 14.0%

$100k–$150k 22.5%

$150k–$200k 16.6%

$200k+ 20.6%

Range	% of households
Under $10k	1.9%
$10k–$15k	0.6%
$15k–$25k	3.7%
$25k–$35k	5.4%
$35k–$50k	5.1%
$50k–$75k	9.4%
$75k–$100k	14.0%
$100k–$150k	22.5%
$150k–$200k	16.6%
$200k+	20.6%
Median income	$120,929

Housing

Home values

Under $50k 2.3%

$50k–$100k 0.5%

$100k–$150k 0.9%

$150k–$200k 5.4%

$200k–$300k 19.1%

$300k–$500k 56.7%

$500k–$1M 14.4%

$1M+ 0.7%

Housing overview

Metric	Value
Median home value	$361,900
Median rent / month	$1,740
Owner occupied	78.0%
Renter occupied	22.0%
Vacant	3.6%
Single-family detached	67.9%
Large apartment buildings	3.8%
Mobile homes	0.5%
Median rooms	7.2
Avg household size (owned)	2.62

Year built

Era	%
2020 or later	0.0%
2010–2019	1.0%
2000–2009	3.4%
1990–1999	23.6%
1980–1989	33.6%
1970–1979	21.8%
1960–1969	8.3%
1950–1959	7.4%
1940–1949	0.4%
1939 or earlier	0.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	7.8%
2 bedrooms	23.9%
3 bedrooms	23.5%
4 bedrooms	39.6%
5+ bedrooms	4.9%

Vehicles per household

Vehicles	% of households
No vehicle	5.5%
1 vehicle	25.3%
2 vehicles	50.8%
3 or more	18.3%

Heating fuel

Fuel type	%
Utility gas	90.2%
Electricity	8.2%
Propane / LP gas	1.0%
Fuel oil	0.2%
Wood	0.2%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	5,340	59.1%
Cohabiting couple	281	3.1%
Male householder, no spouse	1,558	17.3%
Female householder, no spouse	1,851	20.5%
Households with children under 18	2,388	26.4%
Households with seniors (65+)	3,680	40.8%
Average household size	2.45

Marital status

Status	Male	Female
Never married	26.9%	26.6%
Married	62.2%	54.7%
Separated	0.7%	0.3%
Widowed	1.8%	9.3%
Divorced	8.4%	9.1%

Education

Less than 9th grade 1.5%

Some HS, no diploma 1.6%

HS graduate 10.7%

Some college, no degree 12.0%

Associate's degree 7.9%

Bachelor's degree 34.0%

Graduate / professional 32.3%

Metric	%
HS diploma or higher	96.9%
Bachelor's or higher	66.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	265	5.4%
Kindergarten	217	4.4%
Elementary school	1,659	33.5%
High school	1,046	21.2%
College / grad school	1,758	35.6%

Employment

Industry of employment

Education & healthcare 22.9%

Manufacturing 20.2%

Professional & management 17.6%

Finance & real estate 10.5%

Retail trade 9.8%

Arts, food & hospitality 5.2%

Public administration 2.6%

Transportation & utilities 2.5%

Wholesale trade 2.4%

Other services 2.4%

Information 2.1%

Construction 1.7%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	65.8%
Service	9.5%
Sales & office	18.1%
Natural resources & construction	2.0%
Production & transportation	4.5%

Employment type

Type	%
Private sector	87.0%
Government	9.0%
Self-employed	3.8%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	77.1%
Carpool	3.9%
Public transit	0.6%
Walk	0.2%
Work from home	18.0%
Other means	0.2%
Avg commute (minutes)	25.2

Poverty

All people 4.9%

Under 18 years 5.7%

18 and over 4.7%

Married-couple families 2.8%

Female-led households 4.2%

Income support

Source	% of households
Social Security	38.3%
Retirement income	34.2%
Supplemental Security	2.7%
Cash public assistance	1.7%
Food stamps / SNAP	3.3%

Health indicators

Condition	%
Obesity	30.0%
High blood pressure	31.1%
High cholesterol	35.1%
Diabetes	9.3%
Heart disease	5.3%
Stroke	2.4%
Asthma	9.5%
Arthritis	24.7%
Kidney disease	2.4%
Pulmonary disease	4.8%
Cancer	7.2%

Behavior / access	%
Smoking	10.6%
Binge drinking	16.4%
No physical activity	15.5%
Less than 7 hrs sleep	31.4%
Depression	16.0%
Fair or poor health	9.8%
Poor mental health	12.4%
Poor physical health	7.6%
No health insurance	5.8%
Visited doctor (checkup)	76.2%
Visited dentist	79.2%
Cholesterol screening	94.7%
Teeth loss	6.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	856	4.7%

Disability	%
Any disability	9.4%
Under 18	1.8%
18–64 years	5.5%
65 and over	25.4%

Health insurance coverage

Type	%
Private insurance	85.2%
Public insurance	31.5%
No insurance	2.5%
Uninsured under 19	2.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	21,241	95.9%
Spanish	1,328	6.3%
Other Indo-European	96	0.5%
Asian & Pacific Islander	329	1.5%
Other languages	425	2.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	16,876	76.2%
Born in same state	16,747	75.6%
Born in different state	13,201	59.6%
Foreign born	129	0.6%
Naturalized citizen	5,276	23.8%
Not a US citizen	3,431	65.0%

Ancestry

Ancestry	Count	%
Italian	1,907	8.6%
French	1,770	8%
Arab	1,394	6.3%
Irish	275	1.2%
English	137	0.6%

Ancestry	Count	%
Norwegian	81	0.4%
German	80	0.4%
Polish	59	0.3%
Dutch	10	0%

Technology access

Metric	% of households
Computer access	40.8%
Internet access	96.0%

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

Frequently asked questions about ZIP code 48331

What city is ZIP code 48331 in?

ZIP code 48331 is primarily assigned to Farmington, Michigan.

What county is ZIP code 48331 in?

ZIP code 48331 falls within Oakland County, Michigan.

How educated is the population of ZIP code 48331?

66% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 48331 have a large retiree population?

38% of households in ZIP code 48331 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 48331?

The median home value in ZIP code 48331 is $361,900.

What is the median household income in ZIP code 48331?

The median household income in ZIP code 48331 is $120,929, above the national median of ~$75,000.

What timezone is ZIP code 48331 in?

ZIP code 48331 observes the EST timezone.