21220Middle River, MD
Prospecting data for 21220: Middle River, MD
Zip 21220 in Middle River, Maryland has about 10,100 homeowners. About 3,060 have a connected mobile phone and 1,390 of those are clear of the National Do Not Call Registry.
Absentee owners 21220
Data as of 2026-09
- Absentee owners1,760
- Mailable address99%1,740
- Connected mobile6%110
- Email on file9%160
- Mobile and DNC clear2%under 100
Rounded floors, not promises.
| Population | 41,100 |
|---|---|
| Housing units | 16,700 |
| Owner occupied | 66% of occupied homes |
| Renter occupied | 34% of occupied homes |
| Median household income | $71,000 |
| Median age | 38.1 |
| Built before 1970 | 41% of homes |
| Built 2000 or later | 19% of homes |
| Median mortgage payment | $1,630 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: 99% of 21220 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Middle River campaign.
Calling and texting reach about 30% with a connected mobile, but only 14% 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 46%. 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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