57359Letcher, SD
Prospecting data for 57359: Letcher, SD
Zip 57359 in Letcher, South Dakota has about 130 homeowners. About under 100 have a connected mobile phone and under 100 of those are clear of the National Do Not Call Registry.
Absentee owners 57359
Data as of 2026-09
- Absentee owners120
- Mailable address91%110
- Connected mobile2%under 100
- Email on file5%under 100
- Mobile and DNC clear2%under 100
Rounded floors, not promises.
| Population | 762 |
|---|---|
| Housing units | 363 |
| Owner occupied | 77% of occupied homes |
| Renter occupied | 23% of occupied homes |
| Median household income | $56,000 |
| Median age | 44.2 |
| Built before 1970 | 52% of homes |
| Built 2000 or later | 10% of homes |
| Median mortgage payment | $960 a month |
| Time zone | CST |
| Area code | 605 |
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: 100% of 57359 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Letcher campaign.
Calling and texting reach about 12% with a connected mobile, but only 5% 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 36%. 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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