ZIP codes with the most families with kids in St. Joseph, MO
These are the 6 ZIP codes in St. Joseph, MO with the highest share of households with children, out of 6 with at least 1,000 residents. 64505 (Saint Joseph, 32.0%), 64504 (Saint Joseph, 30.6%) and 64501 (Saint Joseph, 27.2%) lead the list. There is no single "best" ZIP code in St. Joseph; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
ZIP codes with the most families with kids in St. Joseph
| Rank | ZIP | Mailing city | Households with children under 18 | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 64505 | Saint Joseph | 32.0% | 14,107 | 5,266 | — |
| 2 | 64504 | Saint Joseph | 30.6% | 10,068 | 3,888 | 3,994 |
| 3 | 64501 | Saint Joseph | 27.2% | 10,689 | 4,254 | — |
| 4 | 64507 | Saint Joseph | 26.3% | 13,991 | 5,514 | — |
| 5 | 64503 | Saint Joseph | 26.1% | 11,954 | 5,103 | — |
| 6 | 64506 | Saint Joseph | 23.9% | 21,461 | 8,897 | 9,400 |
How we ranked them
Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files. ZIP codes need at least 1,000 residents to be ranked; 6 of 6 qualify.
Which of these to mail, and why
Households with children buy tutoring, youth sports, pediatric and family dental care, child care, birthday venues and family dining. EDDM reaches every door on a route, so a higher share means more of your pieces land with families.
The top five ZIP codes on this list hold 24,025 households. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 64505 on the EDDM route map
More rankings
- Richest ZIP codes in St. Joseph
- ZIP codes with the highest home values in St. Joseph
- ZIP codes with the highest homeownership in St. Joseph
- ZIP codes with the most new movers in St. Joseph
- Youngest ZIP codes in St. Joseph
- Oldest ZIP codes in St. Joseph
- Fastest-growing ZIP codes in St. Joseph
- ZIP codes with the most families with kids in Buchanan County
- All St. Joseph ZIP codes
Businesses that mail these ZIP codes
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EDDM guides
Frequently asked questions
- Which ZIP code in St. Joseph has the highest share of households with children?
- 64505 (Saint Joseph), at 32.0%, among 6 ZIP codes with at least 1,000 residents.
- How is this ranking calculated?
- Ranked by the share of households with one or more people under 18 (ACS Data Profile, 2020–2024). The Census Bureau does not publish a margin of error for this share in our files.
- Why are some ZIP codes missing?
- ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.