06820Darien, CT
Prospecting data for 06820: Darien, CT
Zip 06820 in Darien, Connecticut has about 5,530 homeowners. About 2,260 have a connected mobile phone and 830 of those are clear of the National Do Not Call Registry.
Absentee owners 06820
Data as of 2026-09
- Absentee owners520
- Mailable address97%510
- Connected mobile6%under 100
- Email on file9%under 100
- Mobile and DNC clear2%under 100
Rounded floors, not promises.
| Population | 21,700 |
|---|---|
| Housing units | 7,280 |
| Owner occupied | 87% of occupied homes |
| Renter occupied | 13% of occupied homes |
| Median household income | $233,000 |
| Median age | 40.1 |
| Built before 1970 | 68% of homes |
| Built 2000 or later | 12% of homes |
| Median mortgage payment | $4,000 a month |
| Time zone | EST |
| Area code | 203 |
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: 94% of 06820 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Darien campaign.
Calling and texting reach about 41% with a connected mobile, but only 15% 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 54%. 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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