63121Saint Louis, MO
Prospecting data for 63121: Saint Louis, MO
Zip 63121 in Saint Louis, Missouri has about 4,930 homeowners. About 1,590 have a connected mobile phone and 880 of those are clear of the National Do Not Call Registry.
Absentee owners 63121
Data as of 2026-09
- Absentee owners1,640
- Mailable address98%1,620
- Connected mobile10%160
- Email on file11%180
- Mobile and DNC clear6%under 100
Rounded floors, not promises.
| Population | 23,600 |
|---|---|
| Housing units | 12,600 |
| Owner occupied | 53% of occupied homes |
| Renter occupied | 47% of occupied homes |
| Median household income | $39,000 |
| Median age | 42.3 |
| Built before 1970 | 85% of homes |
| Built 2000 or later | 5% of homes |
| Median mortgage payment | $1,120 a month |
| Time zone | CST |
| Area code | 314 |
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 63121 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Saint Louis campaign.
Calling and texting reach about 32% 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 49%. 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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