80104Castle Rock, CO
Prospecting data for 80104: Castle Rock, CO
Zip 80104 in Castle Rock, Colorado has about 10,900 homeowners. About 3,270 have a connected mobile phone and 1,260 of those are clear of the National Do Not Call Registry.
Absentee owners 80104
Data as of 2026-09
- Absentee owners1,180
- Mailable address98%1,160
- Connected mobile11%140
- Email on file17%200
- Mobile and DNC clear3%under 100
Rounded floors, not promises.
| Population | 31,500 |
|---|---|
| Housing units | 11,500 |
| Owner occupied | 78% of occupied homes |
| Renter occupied | 22% of occupied homes |
| Median household income | $102,000 |
| Median age | 37.1 |
| Built before 1970 | 6% of homes |
| Built 2000 or later | 49% of homes |
| Median mortgage payment | $2,140 a month |
| Time zone | MST |
| Area code | 303 |
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: 97% of 80104 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Castle Rock campaign.
Calling and texting reach about 30% with a connected mobile, but only 11% 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 40%. 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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