21228Catonsville, MD
Prospecting data for 21228: Catonsville, MD
Zip 21228 in Catonsville, Maryland has about 13,200 homeowners. About 4,430 have a connected mobile phone and 1,780 of those are clear of the National Do Not Call Registry.
Absentee owners 21228
Data as of 2026-09
- Absentee owners1,440
- Mailable address98%1,420
- Connected mobile8%120
- Email on file9%130
- Mobile and DNC clear4%under 100
Rounded floors, not promises.
| Population | 48,200 |
|---|---|
| Housing units | 19,400 |
| Owner occupied | 75% of occupied homes |
| Renter occupied | 25% of occupied homes |
| Median household income | $85,000 |
| Median age | 43.9 |
| Built before 1970 | 57% of homes |
| Built 2000 or later | 6% of homes |
| Median mortgage payment | $1,870 a month |
| Time zone | EST |
| Area code | 410 |
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: 96% of 21228 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Catonsville campaign.
Calling and texting reach about 34% with a connected mobile, but only 13% 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 51%. 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
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