Utilities & Infrastructure in San Marcos, TX

Water systems, internet access, and utility services

Internet & Broadband Access

Source: Census ACS

Broadband Access

83.9%

of households

Cable / Fiber / DSL

72.6%

of households

No Internet

4.4%

of households

Total Households

27,606

Internet Subscription Types

Cable, Fiber, or DSL

72.6%

Cellular Data Plan

81.2%

Satellite

5.6%

Cellular Only (no wired)

9.7%

No Internet Access

4.4%

Device Ownership

Source: Census ACS

Has Computer

95.9%

of households

Smartphone

94.2%

of households

Desktop / Laptop

85.1%

of households

Tablet

63.3%

of households

Any Computing Device

95.9%

Smartphone

94.2%

Desktop / Laptop

85.1%

Tablet

63.3%

Smartphone Only

6.4%

No Computer

4.1%

Percentage of households with each device type. Data from the U.S. Census Bureau ACS (2023 5-year estimates, tables B28001 & B28002).

Water Systems

Source: EPA SDWIS

Water Systems

Population Served

137,288

Violations (5yr)

System Name	Type	Source	Pop. Served
CITY OF SAN MARCOS	Community	Surface water	72,970
TEXAS STATE UNIVERSITY - SAN MARCOS	Community	Ground water	43,552
CRYSTAL CLEAR SUD	Community	Purchased surface water	20,766
ALLIANCE REGIONAL WATER AUTHORITY 1B	Community	Purchased ground water	0
ALLIANCE REGIONAL WATER AUTHORITY	Community	Purchased surface water	0

83.9% of households in San Marcos have broadband internet access. 72.6% have cable, fiber, or DSL service. 9.7% rely solely on cellular data without a wired connection. 4.4% of households have no internet access. 6.4% use only a smartphone without a desktop or laptop. The area is served by 5 water systems, providing water to 137,288 people. No water quality violations have been reported in the past 5 years.