21120Parkton, MD
Prospecting data for 21120: Parkton, MD
Zip 21120 in Parkton, Maryland has about 2,160 homeowners. About 870 have a connected mobile phone and 290 of those are clear of the National Do Not Call Registry.
Absentee owners 21120
Data as of 2026-09
- Absentee owners230
- Mailable address99%230
- Connected mobile10%under 100
- Email on file15%under 100
- Mobile and DNC clear3%under 100
Rounded floors, not promises.
| Population | 7,100 |
|---|---|
| Housing units | 2,540 |
| Owner occupied | 91% of occupied homes |
| Renter occupied | 9% of occupied homes |
| Median household income | $115,000 |
| Median age | 46.9 |
| Built before 1970 | 25% of homes |
| Built 2000 or later | 15% of homes |
| Median mortgage payment | $2,600 a month |
| Time zone | EST |
| Area code | 410 |
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: 96% of 21120 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Parkton campaign.
Calling and texting reach about 40% with a connected mobile, but only 13% 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 61%. 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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