ZIP code
48421
Columbiaville, MI
48421 covers Columbiaville in Lapeer County, with 6,488 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 48421. Methodology
ZIP code map of 48421

About ZIP code 48421
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 48421. Not ACS. Methodology
People in 48421
Race
- White6,133
- Black or African American21
- American Indian or Alaska Native32
- Asian39
- Native Hawaiian and Pacific Islander1
- Other race40
- Two or more races390
Hispanic or Latino (any race): 190
Age
- Under 10673
- 10 to 19856
- 20 to 29672
- 30 to 39715
- 40 to 49792
- 50 to 591,024
- 60 to 691,044
- 70 to 79660
- 80 and older220
Income and housing in 48421
Education
- High school graduate94.4%
- Bachelor's degree19.7%
- Graduate degree5.0%
Places covering 48421
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Barnes Lake10.5%
- Columbiaville10.5%
- Millers Lake4.7%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Lapeer County96.2%
- Genesee County3.8%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
74.3% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 48421
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 6,882 | |
| 2006 | 6,628 | |
| 2007 | 6,768 | |
| 2008 | 6,364 | |
| 2009 | 6,371 | |
| 2010 | 6,354 | |
| 2011 | 6,956 | 6,308 |
| 2012 | 6,800 | 6,170 |
| 2013 | 6,836 | 6,230 |
| 2014 | 6,404 | 6,080 |
| 2015 | 6,280 | 6,120 |
| 2016 | 6,294 | 6,160 |
| 2017 | 6,322 | 6,030 |
| 2018 | 6,323 | 6,090 |
| 2019 | 6,259 | 6,150 |
| 2020 | 6,287 | 6,180 |
| 2021 | 6,484 | 6,130 |
| 2022 | 6,592 | 6,030 |
| 2023 | 6,488 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 48421
12 nearest ZIP centroids (any distance)
- 48464Otter Lake4.0 miPop 1,986 · Income $64,464
- 48463Otisville6.4 miPop 4,536 · Income $69,893
- 48435Fostoria6.4 miPop 2,592 · Income $83,142
- 48446Lapeer7.5 miPop 30,807 · Income $66,382
- 48461North Branch9.8 miPop 8,256 · Income $76,597
- 48423Davison10.0 miPop 33,508 · Income $64,096
- 48746Millington10.4 miPop 8,148 · Income $67,879
- 48437Genesee11.7 miPop 399 · Income $38,553
- 48769Vassar12.4 miPop 12 · Income —
- 48412Attica12.5 miPop 5,780 · Income $79,714
- 48506Flint13.2 miPop 24,538 · Income $44,416
- 48760Silverwood13.3 miPop 1,361 · Income $59,083
ZIP centroids within 2 miles
No other ZIP codes within 2 miles of 48421, measured by Census internal-point centroids. Try a wider radius.
ZIPs within 2 miles of this place
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ZIP code 48421 FAQ
- What city is ZIP code 48421 in?
- 48421 is in Columbiaville, MI.
- What county is 48421 in?
- 48421 is in Lapeer County.
- What is the median household income in 48421?
- The median household income in 48421 is $69,597.
- Which ZIP codes are near 48421?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 48421.