20904Silver Spring, MD
Prospecting data for 20904: Silver Spring, MD
Zip 20904 in Silver Spring, Maryland has about 9,480 homeowners. About 3,060 have a connected mobile phone and 1,510 of those are clear of the National Do Not Call Registry.
Absentee owners 20904
Data as of 2026-09
- Absentee owners1,440
- Mailable address99%1,420
- Connected mobile6%under 100
- Email on file9%130
- Mobile and DNC clear3%under 100
Rounded floors, not promises.
| Population | 55,300 |
|---|---|
| Housing units | 20,800 |
| Owner occupied | 56% of occupied homes |
| Renter occupied | 44% of occupied homes |
| Median household income | $85,000 |
| Median age | 40.4 |
| Built before 1970 | 31% of homes |
| Built 2000 or later | 12% of homes |
| Median mortgage payment | $2,260 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: 97% of 20904 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Silver Spring campaign.
Calling and texting reach about 32% with a connected mobile, but only 16% 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 45%. 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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