29920Saint Helena Island, SC
Prospecting data for 29920: Saint Helena Island, SC
Zip 29920 in Saint Helena Island, South Carolina has about 2,640 homeowners. About 640 have a connected mobile phone and 250 of those are clear of the National Do Not Call Registry.
Absentee owners 29920
Data as of 2026-09
- Absentee owners4,410
- Mailable address1%under 100
- Connected mobile7%310
- Email on file9%380
- Mobile and DNC clear3%140
Rounded floors, not promises.
| Population | 11,600 |
|---|---|
| Housing units | 6,750 |
| Owner occupied | 84% of occupied homes |
| Renter occupied | 16% of occupied homes |
| Median household income | $51,000 |
| Median age | 54.3 |
| Built before 1970 | 8% of homes |
| Built 2000 or later | 28% of homes |
| Median mortgage payment | $1,350 a month |
| Time zone | EST |
| Area code | 843 |
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: 0% of 29920 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Saint Helena Island campaign.
Calling and texting reach about 24% with a connected mobile, but only 9% 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 41%. 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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