19720New Castle, DE
Prospecting data for 19720: New Castle, DE
Zip 19720 in New Castle, Delaware has about 15,300 homeowners. About 6,490 have a connected mobile phone and 3,290 of those are clear of the National Do Not Call Registry.
Absentee owners 19720
Data as of 2026-09
- Absentee owners2,440
- Mailable address99%2,420
- Connected mobile10%250
- Email on file12%300
- Mobile and DNC clear4%100
Rounded floors, not promises.
| Population | 59,700 |
|---|---|
| Housing units | 23,000 |
| Owner occupied | 68% of occupied homes |
| Renter occupied | 32% of occupied homes |
| Median household income | $63,000 |
| Median age | 39.5 |
| Built before 1970 | 54% of homes |
| Built 2000 or later | 9% of homes |
| Median mortgage payment | $1,430 a month |
| Time zone | EST |
| Area code | 302 |
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: 99% of 19720 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any New Castle campaign.
Calling and texting reach about 42% with a connected mobile, but only 21% 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 51%. 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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MetroPhiladelphia, PA CountyNew Castle DEHomeownersDEAbsentee owners 19701Bear19702Newark19707Hockessin19709Middletown19711Newark19713Newark19801Wilmington19802Wilmington19803Wilmington19804Wilmington19805Wilmington19806Wilmington19808Wilmington19809Wilmington19810Wilmington
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