PlainZIP

Columbiaville, MI · standard

ZIP Code 48421

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

6,647
63/sq mi
$71,114
Median income
$220,600
Median home value
20.9%
Bachelor's or higher

The verdict

Columbiaville pairs a below-median household income with below-median home values, in a rural, homeowner-dominated area.

48th pct
household income, US ZIPs
49th pct
home value, US ZIPs
63
people per sq mi
89%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 48421 against every reporting US ZIP.

ZIP code 48421 is a mid-sized community (a standard USPS delivery area) in Columbiaville, Lapeer County, Michigan, home to 6,647 residents across 105.0 square miles, a density of 63 people per square mile, in the Detroit time zone.

ZIP 48421 lands in the middle-income range, with a median household income of $71,114 (3% below the Michigan average), while per-capita income is $33,307. Local economic indicators show a 6.4% poverty rate alongside 8.4% unemployment. Median home value sits at $220,600 (0% above the state average), median rent at $654 a month, and owner-occupancy at 88.5%.

Educational attainment sits below the national norm: 20.9% of adults hold a bachelor's degree or higher, the median age is 44.4, and the average commute is 38 minutes. Beyond these figures, 5 nearby ZIP codes within about 10 miles are surfaced below, along with 6 more sharing Lapeer County, letting you compare 48421 to its immediate surroundings rather than a national baseline alone.

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 48421

Top 5 sectors by establishment count in Columbiaville, MI

Which industries have the most business establishments in ZIP 48421.

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 48421, Columbiaville, 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

6,647

Population

105.0

Area (sq mi)

63

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 48421?

44.4

Median Age

49.6%

Male

50.4%

Female

1.8%

Foreign-Born

White 97.6%
African American 0.1%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.8%
Hispanic or Latino 1.2%

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

How ZIP 48421 ranks nationally

Columbiaville, MI household income vs. every US ZIP code

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

$71,114 48th percentile higher than 48% 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%). This entry sits in this band. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $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 51.1%
Bachelor's Degree or Higher 20.9%

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

Owner 88.5%
Renter 11.5%

$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 →

ZIP 48421 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 48421 ranks #3 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 48421 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 48421 ranks #4 of 6 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
48464 Otter Lake, MI 2,231 4.7 mi
48435 Fostoria, MI 2,083 6.8 mi
48463 Otisville, MI 4,627 6.7 mi
48446 Lapeer, MI 30,749 7.4 mi
48423 Davison, MI 32,708 10.0 mi

More ZIP Codes in Lapeer County

48446 standard
Lapeer, MI
Pop: 30,749
48444 standard
Imlay City, MI
Pop: 9,327
48461 standard
North Branch, MI
Pop: 8,428
48455 standard
Metamora, MI
Pop: 7,974
48003 standard
Almont, MI
Pop: 6,070
48412 standard
Attica, MI
Pop: 5,682

Related Areas

Lapeer County Columbiaville, MI Michigan

Frequently Asked Questions

What county is ZIP code 48421 in? ▼
ZIP code 48421 (Columbiaville) is located in Lapeer County, Michigan. Lapeer County contains multiple ZIP codes, see the full list at /counties/lapeer-mi.
What is the population of ZIP code 48421? ▼
ZIP code 48421 in Columbiaville, MI has a population of 6,647 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 48421? ▼
The median household income in ZIP 48421 is $71,114, which is 7% below the national average of $76,288.
What is the average home value in ZIP 48421? ▼
The median home value in ZIP 48421 is $220,600, which is 21% below the national average of $278,155.
What is the demographic makeup of ZIP 48421? ▼
The largest racial group in ZIP 48421 is White at 97.6%. Hispanic or Latino residents make up 1.2% of the population.
How many businesses are in ZIP code 48421? ▼
ZIP code 48421 has 53 business establishments employing approximately 198 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 48421? ▼
The top industries by establishment count in ZIP 48421 are: Other services (except public administration) (10), Construction (9), Wholesale trade (5). There are 7 industry sectors represented in total.
How have home values changed in ZIP code 48421? ▼
According to the FHFA House Price Index, home values in ZIP 48421 increased by 6.0% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 69%. 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 48421? ▼
In ZIP code 48421, 51.1% of residents aged 25+ have a high school diploma or higher, and 20.9% 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 48421? ▼
The mean commute time for workers in ZIP code 48421 is 38.2 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 48421? ▼
In ZIP code 48421, approximately 88.5% of occupied housing units are owner-occupied and 11.5% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 48421? ▼
The poverty rate in ZIP code 48421 is 6.4% 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.