Mountain City, TX ZIP Codes
2 ZIP codes serve Mountain City, Texas: 78640 and 78610. Together they are home to 125,850 residents in 45,015 households. That is more than the 787 people counted inside Mountain City city limits, because these ZIP codes reach past its boundary. Median household income ranges from $90,075 in 78640 to $119,698 in 78610.
Mountain City city limits (Census)
| Measure | Census figure |
|---|---|
| Residents | 787 |
| Households | 290 |
| Median household income | $128,929 |
| Median home value | $494,800 |
| Median age | 42.3 |
| Median rent | not published |
All 2 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 125,850 |
| Households (sum of ZIP codes) | 45,015 |
| Median household income, range across ZIP codes | $90,075 (78640) to $119,698 (78610) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $101,683 |
| Homeowners | 74.1% |
| Households with kids under 18 | 39.3% |
| Moved in the past year | 15.1% |
| Carrier routes in EDDM2GO's route library | 57 routes, 57,709 homes (2 of 2 ZIP codes) |
Top facts
- Highest median household income in Mountain City: 78610 ($119,698)
- Most residents: 78640 (77,531 people)
- Highest homeownership: 78610 (78.8% own their home)
- Most households with kids: 78640 (39.8% of households)
- Most new movers: 78610 (16.8% moved in last year)
- Youngest median age: 78640 (33.4 years)
- Highest median home value: 78610 ($408,000)
Every ZIP code in Mountain City
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 78640 | Kyle | 77,531 | 27,375 | $90,075 | $330,400 | 71.0% | 39.8% | 14.0% | 34 | 35,535 | 0% of its land |
| 78610 | Buda | 48,319 | 17,640 | $119,698 | $408,000 | 78.8% | 38.4% | 16.8% | 23 | 24,166 | 0% of its land |
A ZIP code is listed for Mountain City when at least 10% of its land lies inside Mountain City city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Mountain City. The table shows which applies. Totals add up whole ZIP codes, so they include any parts outside Mountain City.
Counties
- Hays County — 8 ZIP codes
Nearby cities sharing these ZIP codes
Metro maps
- Austin ZIP code map — 89 ZIP codes
Price a mailing to Mountain City ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in Mountain City, TX?
- 78640 and 78610. A ZIP code is listed for Mountain City when at least 10% of its land lies inside Mountain City city limits, when it holds at least 10% of the place's land, or when its USPS mailing city is Mountain City.
- What is the population of Mountain City, TX?
- The Census Bureau counts 787 residents inside Mountain City city limits (ACS 2020–2024). The 2 ZIP codes that serve Mountain City hold 125,850 residents in all.
- What is the median household income in Mountain City, TX?
- $128,929 inside Mountain City city limits, per the Census Bureau. Across its ZIP codes the medians run from $90,075 to $119,698.
- Which Mountain City ZIP code has the highest median household income?
- 78610, at $119,698, among ZIP codes with at least 1,000 residents.
- How many carrier routes and mailboxes are in Mountain City, TX?
- For the 2 of 2 ZIP codes in EDDM2GO's stored route library: 57 carrier routes reaching 57,709 residential and 1,973 business mailboxes.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.