Comparison to Surrounding Areas
The median household income ($81,346) for 78656 is less than the median household income for 78640 ($90,075) and Hays County ($89,097). But it's more than 78644 ($74,709), 78655 ($55,952), 78666 ($54,737), Caldwell County ($69,758), and San Marcos city ($51,281).
| 78656 | $81,346 |
| San Marcos city | $51,281 |
| Caldwell County | $69,758 |
| Hays County | $89,097 |
Get Median Household Income for all Zip Codes in Texas.
The average household income ($90,982) for 78656 is less than the average household income for 78640 ($102,165) and Hays County ($117,544). But it's more than 78644 ($86,527), 78655 ($80,555), 78666 ($72,718), Caldwell County ($87,260), and San Marcos city ($66,133).
| 78656 | $90,982 |
| San Marcos city | $66,133 |
| Caldwell County | $87,260 |
| Hays County | $117,544 |
Get Average Household Income for all Zip Codes in Texas.
The per-capita income for 78656 is $32,747. The per capita income ($32,747) for 78656 is less than the per capita income for 78640 ($36,864) and Hays County ($44,565). But it's more than 78644 ($31,228), 78655 ($29,805), 78666 ($29,465), Caldwell County ($31,050), and San Marcos city ($27,545).
| 78656 | $32,747 |
| San Marcos city | $27,545 |
| Caldwell County | $31,050 |
| Hays County | $44,565 |
Get Per-Capita Income for all Zip Codes in Texas.
4% of households make over $200,000 a year. The percent high income households (4.0%) for 78656 is less than 78640 (8.6%), 78644 (6.7%), 78655 (8.3%), 78666 (5.2%), Caldwell County (6.9%), and Hays County (15.3%). And it's the same as San Marcos city (4.0%).
| 78656 | 4.0% |
| San Marcos city | 4.0% |
| Caldwell County | 6.9% |
| Hays County | 15.3% |
Get High Income Households for all Zip Codes in Texas.
| under 25 years | 25 to 44 years | 45 to 64 years | 65 years and over | |
|---|---|---|---|---|
| 78656 | $-1 | $93,399 | $69,583 | $54,233 |
| San Marcos city | $28,712 | $58,499 | $71,868 | $53,772 |
| Caldwell County | $27,060 | $83,015 | $80,519 | $49,476 |
| Hays County | $32,162 | $102,069 | $110,161 | $73,773 |
Get Median Household Income by Age of Householder for all Zip Codes in Texas.
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All income statistics above are the most current, comparable income statistics available from the US Census Bureau and are from the American Community Survey 2024 5-year estimates. You can find this information and other demographics for 78656 on the US Census Bureau’s website. These values are in 2024 inflation-adjusted dollars and were downloaded on 29 January 2026.
Margins of error for the income data are:
| Median Household Income | Average Household Income | Per Capita Income | High Income Households | Median Household Income by Age of Householder | ||||
|---|---|---|---|---|---|---|---|---|
| under 25 | 25 to 44 | 45 to 64 | 65+ | |||||
| 78656 | +/-$32,292 | +/-$16,040 | +/-$6,813 | +/-4.4% | +/-$-1 | +/-$12,710 | +/-$44,223 | +/-$3,957 |
| San Marcos city | +/-$2,567 | +/-$3,639 | +/-$1,643 | +/-1.3% | +/-$4,700 | +/-$6,949 | +/-$13,225 | +/-$12,667 |
| Caldwell County | +/-$5,400 | +/-$5,304 | +/-$1,748 | +/-1.3% | +/-$9,988 | +/-$10,760 | +/-$6,597 | +/-$8,250 |
| Hays County | +/-$2,532 | +/-$3,368 | +/-$1,186 | +/-1.1% | +/-$5,537 | +/-$5,991 | +/-$6,537 | +/-$4,136 |