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San Marcos, Texas ZIP code demographics

2 ZIP Code Tabulation Areas in San Marcos, Texas. The population-weighted median household income is about $55,481, the median home value about $303,296, and 38.9% of occupied homes are owner-occupied.

2
ZIP codes
91.4K
Population
54
Data points

San Marcos at a glance

$55,481
Median household income
$303,296
Median home value
27.2
Median age
38.9%
Owner-occupied
37,567
Housing units

Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.

Top 2 San Marcos ZIP codes by median household income
#ZIPCityPopulationHomeowner %Median HH $
178656San Marcos2,84769.2%$81,346
278666Canyon Lake88,58338.1%$54,737
Top 2 San Marcos ZIP codes by population
#ZIPCityPopulationHomeowner %Median HH $
178666Canyon Lake88,58338.1%$54,737
278656San Marcos2,84769.2%$81,346
Top 2 San Marcos ZIP codes by Homeowner GDP
#ZIPCityPopulationHomeowner %Median HH $Homeowner GDP
178666Canyon Lake88,58338.1%$54,737$707.6M
278656San Marcos2,84769.2%$81,346$54.9M

Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.

Densest: 78666 (Canyon Lake) at 461 people/sq mi. Least dense: 78656 (San Marcos) at 100 people/sq mi.

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