20850Rockville, MD
Prospecting data for 20850: Rockville, MD
Zip 20850 in Rockville, Maryland has about 9,290 homeowners. About 2,640 have a connected mobile phone and 980 of those are clear of the National Do Not Call Registry.
Absentee owners 20850
Data as of 2026-09
- Absentee owners2,070
- Mailable address98%2,020
- Connected mobile7%150
- Email on file11%220
- Mobile and DNC clear3%under 100
Rounded floors, not promises.
| Population | 53,200 |
|---|---|
| Housing units | 21,700 |
| Owner occupied | 55% of occupied homes |
| Renter occupied | 45% of occupied homes |
| Median household income | $110,000 |
| Median age | 40.1 |
| Built before 1970 | 20% of homes |
| Built 2000 or later | 38% of homes |
| Median mortgage payment | $2,870 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: 96% of 20850 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Rockville campaign.
Calling and texting reach about 28% with a connected mobile, but only 11% 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 42%. 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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