ZIP Code 78656 - Maxwell Texas
Overview
ZIP Code 78656 is located in Maxwell Texas. Portions of 78656 are also in San Marcos and Martindale. 78656 is entirely within Caldwell County. Regionally, 78656 is located in Metro Austin.
ZIP Code 78656 Quick Stats
| ZIP Code Name | Maxwell |
| Primary County | Caldwell County |
| ZIP Code Type | Standard |
| Population (2022) | 2,631 |
| Area Code(s) | 512 / 737 |
| Current Time | CDT |
ZIP Code 78656 Map
78656 Demographics
78656 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 78656 is White. The current unemployment level in 78656 is 4.1%.
| Population | 2,631 |
| Population Growth Rate | 4.42% |
| Population Density | 79 People per Square Mile |
| Total Households | 527 |
| Median Household Income (2021) | $49,564 |
| Average Adjusted Gross Income (2021) | $338,130 |
| Current Unemployment Rate (May 2026) | 4.1% |
| Sales Tax Rate (2025) | 8.2% |
| Majority Race/Ethnicity | White - 50.27% |
78656 Race/Ethnicity Breakdown
| Race/Ethnicity | Total | Percentage |
|---|---|---|
| White | 1,896 | 50.27% |
| Black | 43 | 1.14% |
| Hispanic | 1,833 | 48.59% |
| Asian | 0 | 0% |
| Native American | 0 | 0% |
| Hawaiian/Pac. Islander | 0 | 0% |
78656 Educational Attainment Levels
| Highest Education Level | Total | Percentage |
|---|---|---|
| Less Than 1 Year of College | 125 | 12.49% |
| Bachelor Degree | 122 | 12.19% |
| High School Diploma | 377 | 37.66% |
| No High School Diploma | 26 | 2.6% |
| GED or Alternate | 105 | 10.49% |
| 1 or More Years of College | 198 | 19.78% |
| Associates Degree | 48 | 4.8% |
| Masters Degree | 0 | 0% |
| Professional Degree | 0 | 0% |
| Doctorate Degree | 0 | 0% |
78656 Geography
| Coordinates | 29.89528847, -97.81243134 |
| Adjacent ZIP Codes | |
| Cities/Towns in 78656 | |
| Region | Metro Austin |
| Metropolitan/Micropolitan Stat Area | Austin-Round Rock-Georgetown, TX |
| Time Zone | Central Daylight Time |
| IANA Timezone | America/Chicago |
| Area | 33 Square Miles |
78656 Schools
| School Districts in 78656 | |
| Elementary Schools in 78656 | |
| Middle Schools in 78656 | |
| High Schools in 78656 |
78656 Weather and Climate Data
| Plant Hardiness Zone | Zone 8b: 15F to 20F | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average First Frost Date | November 21 - 31 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Average Last Frost Date | March 11 - 20 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Koppen-Geiger Climate Zone | Cfa - Humid Subtropical Climate | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Ecoregion | 32a - Northern Blackland Prairie | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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