63303Saint Charles, MO
Prospecting data for 63303: Saint Charles, MO
Zip 63303 in Saint Charles, Missouri has about 11,200 homeowners. About 4,380 have a connected mobile phone and 1,690 of those are clear of the National Do Not Call Registry.
Absentee owners 63303
Data as of 2026-09
- Absentee owners1,130
- Mailable address99%1,120
- Connected mobile12%140
- Email on file14%160
- Mobile and DNC clear4%under 100
Rounded floors, not promises.
| Population | 48,400 |
|---|---|
| Housing units | 21,100 |
| Owner occupied | 73% of occupied homes |
| Renter occupied | 27% of occupied homes |
| Median household income | $80,000 |
| Median age | 40.6 |
| Built before 1970 | 12% of homes |
| Built 2000 or later | 20% of homes |
| Median mortgage payment | $1,520 a month |
| Time zone | CST |
| Area code | 636 |
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 63303 homeowners have a deliverable mailing address. Mail is the only channel with no consent requirement, so it is the floor of any Saint Charles campaign.
Calling and texting reach about 39% with a connected mobile, but only 15% 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 52%. 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
MetroSt. Louis, MO CountySaint Charles MOHomeownersMOAbsentee owners 63301Saint Charles63304Saint Charles63332Augusta63341Defiance63348Foristell63366O Fallon63367Lake Saint Louis63368O Fallon63373Portage Des Sioux63376Saint Peters63385Wentzville
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