21755Jefferson, MD
Prospecting data for 21755: Jefferson, MD
Zip 21755 in Jefferson, Maryland has about 1,740 homeowners. About 590 have a connected mobile phone and 210 of those are clear of the National Do Not Call Registry.
Absentee owners 21755
Data as of 2026-09
- Absentee owners230
- Mailable address98%230
- Connected mobile8%under 100
- Email on file10%under 100
- Mobile and DNC clear4%under 100
Rounded floors, not promises.
| Population | 5,600 |
|---|---|
| Housing units | 2,070 |
| Owner occupied | 91% of occupied homes |
| Renter occupied | 9% of occupied homes |
| Median household income | $109,000 |
| Median age | 45.8 |
| Built before 1970 | 25% of homes |
| Built 2000 or later | 9% of homes |
| Median mortgage payment | $2,080 a month |
| Time zone | EST |
| Area code | 301 |
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: 98% of 21755 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Jefferson campaign.
Calling and texting reach about 34% 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 55%. 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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