San Carlos, TX ZIP Codes
One ZIP code serves San Carlos, Texas: 78542. Together they are home to 89,401 residents in 23,943 households. That is more than the 3,678 people counted inside San Carlos Census-designated place, because these ZIP codes reach past its boundary.
San Carlos Census-designated place
| Measure | Census figure |
|---|---|
| Residents | 3,678 |
| Households | 967 |
| Median household income | $49,132 |
| Median home value | $75,600 |
| Median age | 34.7 |
| Median rent | $711 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 89,401 |
| Households (sum of ZIP codes) | 23,943 |
| Median household income, range across ZIP codes | $55,243 (78542) to $55,243 (78542) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $55,243 |
| Homeowners | 75.7% |
| Households with kids under 18 | 52.9% |
| Moved in the past year | 9.3% |
| Carrier routes in EDDM2GO's route library | 31 routes, 28,029 homes (1 of 1 ZIP codes) |
Every ZIP code in San Carlos
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 78542 | Edinburg | 89,401 | 23,943 | $55,243 | $150,200 | 75.7% | 52.9% | 9.3% | 31 | 28,772 | 1% of its land |
A ZIP code is listed for San Carlos when at least 10% of its land lies inside the San Carlos Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is San Carlos. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside San Carlos.
Counties
- Hidalgo County — 30 ZIP codes
Nearby cities sharing these ZIP codes
Price a mailing to San Carlos ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in San Carlos, TX?
- 78542. A ZIP code is listed for San Carlos when at least 10% of its land lies inside the San Carlos Census-designated place, when it holds at least 10% of the place's land, or when its USPS mailing city is San Carlos.
- What is the population of San Carlos, TX?
- The Census Bureau counts 3,678 residents inside San Carlos Census-designated place (ACS 2020–2024). The 1 ZIP code that serve San Carlos hold 89,401 residents in all.
- What is the median household income in San Carlos, TX?
- $49,132 inside San Carlos Census-designated place, per the Census Bureau. Across its ZIP codes the medians run from $55,243 to $55,243.
- How many carrier routes and mailboxes are in San Carlos, TX?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 31 carrier routes reaching 28,029 residential and 742 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.