Kyle, TX ZIP Codes
2 ZIP codes serve Kyle, Texas: 78666 and 78640. Together they are home to 166,114 residents in 61,324 households. That is more than the 56,823 people counted inside Kyle city limits, because these ZIP codes reach past its boundary. Median household income ranges from $54,737 in 78666 to $90,075 in 78640.
Kyle city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 56,823 |
| Households | 20,714 |
| Median household income | $90,323 |
| Median home value | $334,600 |
| Median age | 34.1 |
| Median rent | $1,752 |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 166,114 |
| Households (sum of ZIP codes) | 61,324 |
| Median household income, range across ZIP codes | $54,737 (78666) to $90,075 (78640) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $70,512 |
| Homeowners | 52.8% |
| Households with kids under 18 | 29.2% |
| Moved in the past year | 21.9% |
| Carrier routes in EDDM2GO's route library | 77 routes, 75,168 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Kyle: 78640 ($90,075)
- Most residents: 78666 (88,583 people)
- Highest homeownership: 78640 (71.0% own their home)
- Most households with kids: 78640 (39.8% of households)
- Most new movers: 78666 (28.8% moved in last year)
- Youngest median age: 78666 (26.9 years)
- Highest median home value: 78640 ($330,400)
Every ZIP code in Kyle
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 78666 | San Marcos | 88,583 | 33,949 | $54,737 | $306,700 | 38.1% | 20.7% | 28.8% | 43 | 43,040 | 4% of its land |
| 78640 | Kyle | 77,531 | 27,375 | $90,075 | $330,400 | 71.0% | 39.8% | 14.0% | 34 | 35,535 | 25% of its land; mailing city |
A ZIP code is listed for Kyle when at least 10% of its land lies inside Kyle city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Kyle. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Kyle.
Counties
- Hays County — 8 ZIP codes
Nearby cities sharing these ZIP codes
- San Marcos — 2 ZIP codes
Metro maps
- Austin ZIP code map — 89 ZIP codes
Price a mailing to Kyle ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Kyle, TX?
- 78666 and 78640. A ZIP code is listed for Kyle when at least 10% of its land lies inside Kyle city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Kyle.
- What is the population of Kyle, TX?
- The Census Bureau counts 56,823 residents inside Kyle city limits (ACS 2020–2024). The 2 ZIP codes that serve Kyle hold 166,114 residents in all.
- What is the median household income in Kyle, TX?
- $90,323 inside Kyle city limits, per the Census Bureau. Across its ZIP codes the medians run from $54,737 to $90,075.
- Which Kyle ZIP code has the highest median household income?
- 78640, at $90,075, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Kyle, TX?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 77 carrier routes reaching 75,168 residential and 3,402 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.