ZIP Code 48421
standardSource:
Columbiaville · Lapeer County · Michigan
- Population
- 6,647
- Median income
- $71,114
- Median home value
- $220,600
- Bachelor's or higher
- 20.9%
- Land area
- 105.0 sq mi
63/sq mi
▼ 7% vs US
higher than 48% of US ZIPs
▼ 21% vs US
higher than 49% of US ZIPs
Median age 44.4
Detroit
ZIP code 48421 in Columbiaville, Michigan has a population of 6,647. The median household income is $71,114, which is 7% below the national average. Median home value is $220,600, 21% below the US average. 20.9% of residents hold a bachelor's degree or higher.
ZIP code 48421 is classified by USPS as a standard delivery area and covers roughly 105.0 square miles in Columbiaville, Lapeer County, Michigan. The area is home to 6,647 residents, producing a population density of 63 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 48421 against Michigan and the nation.
On the economic side, the median household income for ZIP 48421 sits at $71,114 (3% below the Michigan average), while per-capita income is $33,307. The poverty rate stands at 6.4% and the unemployment rate at 8.4%. On housing, the median home value is $220,600 (0% above the state average) with median rent at $654 per month, and 88.5% of occupied units are owner-occupied, a direct signal of whether 48421 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 20.9% of adults hold a bachelor's degree or higher, the median age is 44.4, and the average commute is 38 minutes. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Lapeer County, so you can benchmark 48421 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 48421
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 48421.
- Other services (except public administration)
Other services (except public administration)
10 establishments
- Construction
Construction
9 establishments
- Wholesale trade
Wholesale trade
5 establishments
- Retail trade
Retail trade
5 establishments
- Administrative and support and waste management and remediation services
Administrative and support and waste management and remediation services
5 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 48421, Columbiaville, 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
6,647
Population
105.0
Area (sq mi)
63
People / sq mi
Detroit
Time Zone
standard
ZIP Type
Who lives in ZIP 48421?
44.4
Median Age
49.6%
Male
50.4%
Female
1.8%
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?
$71,114
Median Household Income
-3% vs state
$33,307
Per Capita Income
6.4%
Poverty Rate
8.4%
Unemployment Rate
38.2 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?
3,049
Total Housing Units
2,632
Occupied Units
417
Vacant Units
2.63
Avg Household Size
Occupancy Type
$220,600
Median Home Value
+0% vs state
$654
Median Rent
1974
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
+6.0%
YoY Change (2024)
169
HPI Index (2000 = 100)
+69%
Total Change Since 2000
Home values in ZIP 48421 have increased 6.0% over the past year (2024). Since 2000, this ZIP has seen +69% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | -0.3% | 125 |
| 2021 | +13.5% | 142 |
| 2022 | +12.6% | 160 |
| 2023 | +0.0% | 160 |
| 2024 | +6.0% | 169 |
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 53 business establishments in ZIP 48421, employing approximately 198 people with a combined annual payroll of $8,055,000.
53
Businesses
198
Employees
$8.1M
Annual Payroll
7
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Other services (except public administration) | 10 | 18.9% |
| Construction | 9 | 17.0% |
| Wholesale trade | 5 | 9.4% |
| Retail trade | 5 | 9.4% |
| Administrative and support and waste management and remediation services | 5 | 9.4% |
| Professional, scientific, and technical services | 3 | 5.7% |
| Health care and social assistance | 3 | 5.7% |
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 48421 vs 48464 →
More ZIP Codes in Lapeer County
Related Areas
Frequently Asked Questions
What county is ZIP code 48421 in? ▼
What is the population of ZIP code 48421? ▼
What is the median household income in ZIP 48421? ▼
What is the average home value in ZIP 48421? ▼
What is the demographic makeup of ZIP 48421? ▼
How many businesses are in ZIP code 48421? ▼
What are the main industries in ZIP code 48421? ▼
How have home values changed in ZIP code 48421? ▼
What is the education level in ZIP code 48421? ▼
What is the average commute time in ZIP 48421? ▼
What percentage of residents own vs. rent in ZIP 48421? ▼
What is the poverty rate in ZIP code 48421? ▼
ZIP Code Research Guides
Official Data Resources for Columbiaville, 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.