60548Sandwich, IL
Prospecting data for 60548: Sandwich, IL
Zip 60548 in Sandwich, Illinois has about 2,650 homeowners. About 1,130 have a connected mobile phone and 480 of those are clear of the National Do Not Call Registry.
Absentee owners 60548
Data as of 2026-09
- Absentee owners550
- Mailable address99%550
- Connected mobile12%under 100
- Email on file12%under 100
- Mobile and DNC clear4%under 100
Rounded floors, not promises.
| Population | 12,100 |
|---|---|
| Housing units | 4,640 |
| Owner occupied | 78% of occupied homes |
| Renter occupied | 22% of occupied homes |
| Median household income | $70,000 |
| Median age | 38.9 |
| Built before 1970 | 33% of homes |
| Built 2000 or later | 15% of homes |
| Median mortgage payment | $1,420 a month |
| Time zone | CST |
| Area code | 815 |
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: 98% of 60548 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Sandwich campaign.
Calling and texting reach about 43% with a connected mobile, but only 18% 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 56%. 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
MetroChicago, IL CountyDekalb ILHomeownersILAbsentee owners 60112Cortland60115Dekalb60135Genoa60145Kingston60146Kirkland60150Malta60178Sycamore60520Hinckley60550Shabbona60552Somonauk60556Waterman
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