90603Whittier, CA
Prospecting data for 90603: Whittier, CA
Zip 90603 in Whittier, California has about 3,360 homeowners. About 1,380 have a connected mobile phone and 760 of those are clear of the National Do Not Call Registry.
Absentee owners 90603
Data as of 2026-09
- Absentee owners270
- Mailable address98%270
- Connected mobile10%under 100
- Email on file10%under 100
- Mobile and DNC clear5%under 100
Rounded floors, not promises.
| Population | 21,600 |
|---|---|
| Housing units | 6,900 |
| Owner occupied | 80% of occupied homes |
| Renter occupied | 20% of occupied homes |
| Median household income | $104,000 |
| Median age | 39.6 |
| Built before 1970 | 87% of homes |
| Built 2000 or later | 4% of homes |
| Median mortgage payment | $2,630 a month |
| Time zone | PST |
| Area code | 562 |
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 90603 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Whittier campaign.
Calling and texting reach about 41% with a connected mobile, but only 23% 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 50%. 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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