94027Atherton, CA
Prospecting data for 94027: Atherton, CA
Zip 94027 in Atherton, California has about 380 homeowners. About 130 have a connected mobile phone and under 100 of those are clear of the National Do Not Call Registry.
Absentee owners 94027
Data as of 2026-09
- Absentee ownersunder 100
- Mailable address93%under 100
- Connected mobile8%under 100
- Email on file11%under 100
- Mobile and DNC clear1%under 100
Rounded floors, not promises.
| Population | 7,420 |
|---|---|
| Housing units | 2,600 |
| Owner occupied | 92% of occupied homes |
| Renter occupied | 8% of occupied homes |
| Median household income | $250,000 |
| Median age | 46.8 |
| Built before 1970 | 59% of homes |
| Built 2000 or later | 16% of homes |
| Median mortgage payment | $4,000 a month |
| Time zone | PST |
| Area code | 650 |
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: 89% of 94027 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Atherton campaign.
Calling and texting reach about 34% 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 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.
→Nearby
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