48421Columbiaville, MI
Prospecting data for 48421: Columbiaville, MI
Zip 48421 in Columbiaville, Michigan has about 2,300 homeowners. About 670 have a connected mobile phone and 260 of those are clear of the National Do Not Call Registry.
Absentee owners 48421
Data as of 2026-09
- Absentee owners330
- Mailable address100%330
- Connected mobile14%under 100
- Email on file7%under 100
- Mobile and DNC clear6%under 100
Rounded floors, not promises.
| Population | 6,260 |
|---|---|
| Housing units | 2,830 |
| Owner occupied | 92% of occupied homes |
| Renter occupied | 8% of occupied homes |
| Median household income | $60,000 |
| Median age | 50.2 |
| Built before 1970 | 34% of homes |
| Built 2000 or later | 7% of homes |
| Median mortgage payment | $1,150 a month |
| Time zone | EST |
| Area code | 810 |
Census figures are rounded ACS 5-year estimates for the zip code tabulation area.
What this means for each channel
Direct mail reaches almost everyone: 99% of 48421 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Columbiaville campaign.
Calling and texting reach about 29% with a connected mobile, but only 11% once you remove numbers on the National Do Not Call Registry. Texting a cold list also needs prior express written consent under the TCPA, so the DNC-clear figure is a calling figure, not a texting figure. See cold calling laws by state.
Email reaches about 50%. Cold email to consumers is legal under CAN-SPAM with an opt-out and a physical address, but deliverability on purchased consumer email is poor; treat it as a supporting touch.
→Nearby
MetroDetroit, MI CountyLapeer MIHomeownersMIAbsentee owners 48003Almont48412Attica48428Dryden48444Imlay City48446Lapeer48455Metamora48461North Branch48464Otter Lake48727Clifford
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