Castle Hills, TX ZIP Codes
One ZIP code serves Castle Hills, Texas: 78213. Together they are home to 40,526 residents in 16,239 households. That is more than the 3,943 people counted inside Castle Hills city limits, because these ZIP codes reach past its boundary.
Castle Hills city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 3,943 |
| Households | 1,491 |
| Median household income | $95,391 |
| Median home value | $419,400 |
| Median age | 41.4 |
| Median rent | $1,650 |
All 1 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 40,526 |
| Households (sum of ZIP codes) | 16,239 |
| Median household income, range across ZIP codes | $55,884 (78213) to $55,884 (78213) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $55,884 |
| Homeowners | 48.8% |
| Households with kids under 18 | 31.5% |
| Moved in the past year | 17.4% |
| Carrier routes in EDDM2GO's route library | 26 routes, 17,641 homes (1 of 1 ZIP codes) |
Every ZIP code in Castle Hills
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 78213 | San Antonio | 40,526 | 16,239 | $55,884 | $216,400 | 48.8% | 31.5% | 17.4% | 26 | 18,633 | 29% of its land |
A ZIP code is listed for Castle Hills when at least 10% of its land lies inside Castle Hills city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Castle Hills. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Castle Hills.
Counties
- Bexar County — 76 ZIP codes
Nearby cities sharing these ZIP codes
- San Antonio — 64 ZIP codes
Metro maps
- San Antonio ZIP code map — 121 ZIP codes
EDDM service areas in Castle Hills
Price a mailing to Castle Hills ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Castle Hills, TX?
- 78213. A ZIP code is listed for Castle Hills when at least 10% of its land lies inside Castle Hills city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Castle Hills.
- What is the population of Castle Hills, TX?
- The Census Bureau counts 3,943 residents inside Castle Hills city limits (ACS 2020–2024). The 1 ZIP code that serve Castle Hills hold 40,526 residents in all.
- What is the median household income in Castle Hills, TX?
- $95,391 inside Castle Hills city limits, per the Census Bureau. Across its ZIP codes the medians run from $55,884 to $55,884.
- How many carrier routes and mailboxes are in Castle Hills, TX?
- For the 1 of 1 ZIP codes in EDDM2GO's stored route library: 26 carrier routes reaching 17,641 residential and 991 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.