78638 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in Texas based on Median Household Income and Average Adjusted Gross Income. The majority race/ethnicity residing in 78638 is White. The current unemployment level in 78638 is 4.1%.
| Population | 1,982 |
| Population Growth Rate | -5.94% |
| Population Density | 17 People per Square Mile |
| Total Households | 742 |
| Percentage High Income Households | 0.9% |
| Median Household Income (2021) | $49,886 |
| Average Adjusted Gross Income (2021) | $696,490 |
| Current Unemployment Rate (May 2026) | 4.1% |
| Sales Tax Rate (2025) | 8.2% |
| Majority Race/Ethnicty | White - 64.69% |
78638 Race/Ethnicty Breakdown
| Race/Ethnicty | Total | Percentage |
| White | 1,460 | 64.69% |
| Black | 66 | 2.92% |
| Hispanic | 731 | 32.39% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
78638 Educational Attainment Levels
| Highest Education Level Attained | Total | Percentage |
| Less Than 1 Year of College | 75 | 6.48% |
| Bachelor Degree | 150 | 12.96% |
| High School Diploma | 466 | 40.28% |
| No High School Diploma | 8 | 0.69% |
| GED or Alternate | 136 | 11.75% |
| 1 or More Years of College | 204 | 17.63% |
| Associates Degree | 31 | 2.68% |
| Masters Degree | 69 | 5.96% |
| Professional Degree | 8 | 0.69% |
| Doctorate Degree | 10 | 0.86% |