Utilities & Infrastructure in San Marcos, CA

Water systems, internet access, and utility services

Internet & Broadband Access

Source: Census ACS

Broadband Access

94.8%

of households

Cable / Fiber / DSL

82.1%

of households

No Internet

3.9%

of households

Total Households

30,880

Internet Subscription Types

Cable, Fiber, or DSL
82.1%
Cellular Data Plan
88.1%
Satellite
7.7%
Cellular Only (no wired)
8.2%
No Internet Access
3.9%

Device Ownership

Source: Census ACS

Has Computer

97.9%

of households

Smartphone

94.7%

of households

Desktop / Laptop

89.5%

of households

Tablet

74.1%

of households

Any Computing Device
97.9%
Smartphone
94.7%
Desktop / Laptop
89.5%
Tablet
74.1%
Smartphone Only
5.2%
No Computer
2.1%

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

2

Population Served

113,596

Violations (5yr)

10

System NameTypeSourcePop. ServedViolations
VALLECITOS WDCommunityPurchased surface water113,5000
OCOTILLO OASIS, LLCCommunityGround water9610

94.8% of households in San Marcos have broadband internet access. 82.1% have cable, fiber, or DSL service. 8.2% rely solely on cellular data without a wired connection. 3.9% of households have no internet access. 5.2% use only a smartphone without a desktop or laptop. The area is served by 2 water systems, providing water to 113,596 people. A total of 10 water quality violations have been recorded over the past 5 years.