PlainZIP

Farmington, MI · standard

ZIP Code 48331

Oakland County, Michigan - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

21,503
894/sq mi
$127,633
Median income
$410,000
Median home value
66.5%
Bachelor's or higher

The verdict

Farmington pairs a top-decile household income with upper-quartile home values, in a low-density, homeowner-dominated area.

Top 8%
household income, US ZIPs
Top 20%
home value, US ZIPs
894
people per sq mi
79%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 48331 against every reporting US ZIP.

ZIP code 48331 is a densely settled ZIP (a standard USPS delivery area) in Farmington, Oakland County, Michigan, with 21,503 residents across 24.1 square miles, a density of 894 people per square mile, in the Detroit time zone.

ZIP 48331 skews affluent, with a median household income of $127,633 (74% above the Michigan average), while per-capita income is $62,919. Poverty here runs at 6.8%, with unemployment measured at 6.3%. Median home value sits at $410,000 (87% above the state average), median rent at $1,828 a month, and owner-occupancy at 78.8%.

This is a highly-educated ZIP: 66.5% of adults hold a bachelor's degree or higher, the median age is 47.6, and the average commute is 25 minutes. To put 48331 in local context, 10 ZIP codes within roughly 10 miles appear further down this page alongside 6 additional ZIPs in Oakland County, for a geography-aware comparison.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Top industries in ZIP 48331

Top 5 sectors by establishment count in Farmington, MI

Which industries have the most business establishments in ZIP 48331.

establishments

What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.

Source U.S. Census Bureau · ZIP Code Business Patterns (ZBP) As of 2023

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 48331, Farmington, MI · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

21,503

Population

24.1

Area (sq mi)

894

People / sq mi

Detroit

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 48331?

47.6

Median Age

48.6%

Male

51.4%

Female

23.5%

Foreign-Born

White 66.3%
African American 14.4%
Asian 12.8%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 5.2%
Hispanic or Latino 2.8%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$127,633

Median Household Income

+74% vs state

$62,919

Per Capita Income

6.8%

Poverty Rate

6.3%

Unemployment Rate

25.3 min

Mean Commute Time

How ZIP 48331 ranks nationally

Farmington, MI household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$127,633 Top 8% higher than 92% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 77.9%
Bachelor's Degree or Higher 66.5%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

9,354

Total Housing Units

8,786

Occupied Units

568

Vacant Units

2.44

Avg Household Size

Occupancy Type

Owner 78.8%
Renter 21.2%

$410,000

Median Home Value

+87% vs state

$1,828

Median Rent

1984

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How have home values changed over time?

FHFA House Price Index, annual appreciation data based on repeat sales and appraisals

+10.0%

YoY Change (2024)

154

HPI Index (2000 = 100)

+54%

Total Change Since 2000

Home values in ZIP 48331 have increased 10.0% over the past year (2024). Since 2000, this ZIP has seen +54% cumulative appreciation.

Year Annual Change HPI Index
2020 +2.4% 112
2021 +8.1% 121
2022 +14.0% 137
2023 +1.6% 140
2024 +10.0% 154

Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.

What businesses operate in this ZIP?

Census Bureau data shows 598 business establishments in ZIP 48331, employing approximately 22,442 people with a combined annual payroll of $2,317,085,000.

598

Businesses

22,442

Employees

$2.3B

Annual Payroll

17

Industry Sectors

Industry Establishments % of Total
Professional, scientific, and technical services 171 28.6%
Health care and social assistance 66 11.0%
Finance and insurance 63 10.5%
Wholesale trade 55 9.2%
Administrative and support and waste management and remediation services 38 6.3%
Retail trade 28 4.7%
Other services (except public administration) 28 4.7%
Real estate and rental and leasing 26 4.3%
Construction 22 3.7%
Information 22 3.7%
Accommodation and food services 19 3.2%
Management of companies and enterprises 17 2.8%
Manufacturing 14 2.3%
Arts, entertainment, and recreation 12 2.0%
Transportation and warehousing 7 1.2%
Educational services 6 1.0%
Industries not classified 4 0.7%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 48331 vs 48335 →

ZIP 48331 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 48331 ranks #7 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 48331 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 48331 ranks #3 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
48335 Farmington, MI 22,398 2.9 mi
48334 Farmington, MI 18,540 3.0 mi
48322 West Bloomfield, MI 31,265 3.0 mi
48377 Novi, MI 15,244 3.3 mi
48375 Novi, MI 21,801 3.9 mi
48323 West Bloomfield, MI 17,708 4.9 mi
48336 Farmington, MI 25,486 4.2 mi
48324 West Bloomfield, MI 17,350 6.4 mi
48152 Livonia, MI 31,173 5.7 mi
48390 Walled Lake, MI 22,898 4.8 mi

More ZIP Codes in Oakland County

48307 standard
Rochester, MI
Pop: 41,369
48073 standard
Royal Oak, MI
Pop: 32,798
48322 standard
West Bloomfield, MI
Pop: 31,265
48071 standard
Madison Heights, MI
Pop: 29,694
48237 standard
Oak Park, MI
Pop: 29,319
48309 standard
Rochester, MI
Pop: 29,135

Related Areas

Oakland County Farmington, MI Michigan

Frequently Asked Questions

What county is ZIP code 48331 in? ▼
ZIP code 48331 (Farmington) is located in Oakland County, Michigan. Oakland County contains multiple ZIP codes, see the full list at /counties/oakland-mi.
What is the population of ZIP code 48331? ▼
ZIP code 48331 in Farmington, MI has a population of 21,503 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 48331? ▼
The median household income in ZIP 48331 is $127,633, which is 67% above the national average of $76,288.
What is the average home value in ZIP 48331? ▼
The median home value in ZIP 48331 is $410,000, which is 47% above the national average of $278,155.
What is the demographic makeup of ZIP 48331? ▼
The largest racial group in ZIP 48331 is White at 66.3%. Hispanic or Latino residents make up 2.8% of the population.
How many businesses are in ZIP code 48331? ▼
ZIP code 48331 has 598 business establishments employing approximately 22,442 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 48331? ▼
The top industries by establishment count in ZIP 48331 are: Professional, scientific, and technical services (171), Health care and social assistance (66), Finance and insurance (63). There are 17 industry sectors represented in total.
How have home values changed in ZIP code 48331? ▼
According to the FHFA House Price Index, home values in ZIP 48331 increased by 10.0% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 54%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 48331? ▼
In ZIP code 48331, 77.9% of residents aged 25+ have a high school diploma or higher, and 66.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 48331? ▼
The mean commute time for workers in ZIP code 48331 is 25.3 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend less time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 48331? ▼
In ZIP code 48331, approximately 78.8% of occupied housing units are owner-occupied and 21.2% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 48331? ▼
The poverty rate in ZIP code 48331 is 6.8% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.