21111Monkton, MD
Prospecting data for 21111: Monkton, MD
Zip 21111 in Monkton, Maryland has about 1,460 homeowners. About 550 have a connected mobile phone and 170 of those are clear of the National Do Not Call Registry.
Absentee owners 21111
Data as of 2026-09
- Absentee owners160
- Mailable address100%160
- Connected mobile7%under 100
- Email on file11%under 100
- Mobile and DNC clear3%under 100
Rounded floors, not promises.
| Population | 5,390 |
|---|---|
| Housing units | 1,950 |
| Owner occupied | 92% of occupied homes |
| Renter occupied | 8% of occupied homes |
| Median household income | $133,000 |
| Median age | 44.3 |
| Built before 1970 | 22% of homes |
| Built 2000 or later | 16% of homes |
| Median mortgage payment | $2,660 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: 97% of 21111 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Monkton campaign.
Calling and texting reach about 38% with a connected mobile, but only 12% 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 60%. 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.
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