ZIP Code 48331
standardSource:
Farmington · Oakland County · Michigan
- Population
- 21,503
- Median income
- $127,633
- Median home value
- $410,000
- Bachelor's or higher
- 66.5%
- Land area
- 24.1 sq mi
894/sq mi
▲ 67% vs US
higher than 92% of US ZIPs
▲ 47% vs US
higher than 80% of US ZIPs
Median age 47.6
Detroit
ZIP code 48331 in Farmington, Michigan has a population of 21,503. The median household income is $127,633, which is 67% above the national average. Median home value is $410,000, 47% above the US average. 66.5% of residents hold a bachelor's degree or higher.
ZIP code 48331 is classified by USPS as a standard delivery area and covers roughly 24.1 square miles in Farmington, Oakland County, Michigan. The area is home to 21,503 residents, producing a population density of 894 people per square mile, and falls within the Detroit time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 48331 against Michigan and the nation.
On the economic side, the median household income for ZIP 48331 sits at $127,633 (74% above the Michigan average), while per-capita income is $62,919. The poverty rate stands at 6.8% and the unemployment rate at 6.3%. On housing, the median home value is $410,000 (87% above the state average) with median rent at $1,828 per month, and 78.8% of occupied units are owner-occupied, a direct signal of whether 48331 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 66.5% of adults hold a bachelor's degree or higher, the median age is 47.6, and the average commute is 25 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Oakland County, so you can benchmark 48331 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 48331
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 48331.
- Professional, scientific, and technical services
Professional, scientific, and technical services
171 establishments
- Health care and social assistance 66
Health care and social assistance
66 establishments
- Finance and insurance 63
Finance and insurance
63 establishments
- Wholesale trade 55
Wholesale trade
55 establishments
- Administrative and support and waste management and remediation services 38
Administrative and support and waste management and remediation services
38 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, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, 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; HUD FMR + 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
Who lives in ZIP 48331?
47.6
Median Age
48.6%
Male
51.4%
Female
23.5%
Foreign-Born
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
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
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
$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 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
Related Areas
Frequently Asked Questions
What county is ZIP code 48331 in? ▼
What is the population of ZIP code 48331? ▼
What is the median household income in ZIP 48331? ▼
What is the average home value in ZIP 48331? ▼
What is the demographic makeup of ZIP 48331? ▼
How many businesses are in ZIP code 48331? ▼
What are the main industries in ZIP code 48331? ▼
How have home values changed in ZIP code 48331? ▼
What is the education level in ZIP code 48331? ▼
What is the average commute time in ZIP 48331? ▼
What percentage of residents own vs. rent in ZIP 48331? ▼
What is the poverty rate in ZIP code 48331? ▼
ZIP Code Research Guides
Official Data Resources for Farmington, MI
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.