San Marcos Real Estate Details
Properties For Sale & Real Estate
21,378
Populations as of 2026
$50,985
Median Household Income
$26,153
Per Capita Income
16.5%
High School Graduate
9.5%
Bachelor Degree Or Higher
Population
2026 Estimate (V2026)
21,378
Age Distribution (Years Old)
0 to 4
5%
5 to 17
14.7%
18 to 64
64.1%
65 and Older
16.2%
Computer and Internet Use
Households with a computer
38.1%
Households with a broadband Internet subscription
38.1%
Language
English or Second Language, Age 5+
3.8%
English is First Language, Age 5+
91.2%
Housing
Total Housing Units
10,012
Households
8,147
Average Household Size
2 people
Owner-Occupied
23.5%
Multi-Family
1.1%
Owner-Occupied Median Value
$147,100
Median selected monthly owner costs - with a mortgage
$1,167
Median selected monthly owner costs - without a mortgage
$393
Median Gross Rent
$734
Year at Residence
1 Year or More
18.6%
Less Than 1 Year
81.4%
Business and Employment
Private non-farm Establishments
-
Private non-farm Employment
-
Nonemployer Establishments
1,437
Number of Firms
-
Business Production
Value of Shipments
-
Wholesale Trade
-
Retail Trade
-
Retail Sales Per Capita
-
Accommodation and Food Services
-
The American Community Survey (ACS) is an ongoing survey that provides data every year - giving communities the current information they need to plan investments and services. The ACS covers a broad range of topics about social, economic, demographic, and housing characteristics of the U.S. population. Much of the ACS data provided on the Census Bureau's Web site are available separately by age group, race, Hispanic origin, and sex. Summary files, Subject tables, Data profiles, and Comparison Summary
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