20871Clarksburg, MD
Prospecting data for 20871: Clarksburg, MD
Zip 20871 in Clarksburg, Maryland has about 7,920 homeowners. About 2,190 have a connected mobile phone and 1,050 of those are clear of the National Do Not Call Registry.
Absentee owners 20871
Data as of 2026-09
- Absentee owners780
- Mailable address99%770
- Connected mobile7%under 100
- Email on file9%under 100
- Mobile and DNC clear3%under 100
Rounded floors, not promises.
| Population | 18,600 |
|---|---|
| Housing units | 5,980 |
| Owner occupied | 85% of occupied homes |
| Renter occupied | 15% of occupied homes |
| Median household income | $129,000 |
| Median age | 36.3 |
| Built before 1970 | 9% of homes |
| Built 2000 or later | 79% of homes |
| Median mortgage payment | $2,700 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 20871 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Clarksburg campaign.
Calling and texting reach about 28% 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 35%. 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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