4G LTE & 5G Coverage In San Marcos

The table below shows the proportion of San Marcos with coverage from different cellular technologies.

Network	4G Coverage	5G Coverage
AT&T	100%	100%
T-Mobile	99%	99%
Verizon	100%	98%
Dish	0%	99%

Don't be alarmed by Dish's lack of 4G coverage in San Marcos. Dish has a newly-built network that's 5G-only.

US Cellular And Dish Roaming Coverage

US Cellular does not have native coverage in San Marcos. However, some US Cellular subscribers may still have coverage in San Marcos thanks to roaming agreements.

San Marcos Cell Signal Strength

There are 809 map hexes within the census-defined boundaries of San Marcos. The table below shows the proportion of hexes at various levels of signal strength. Where both 4G and 5G coverage is available, data is drawn from whichever technology offers a stronger signal.

Network	Strong	Decent	Weak	None
AT&T	10%	62%	28%	0%
T-Mobile	26%	56%	17%	1%
Verizon	53%	46%	0%	0%
Dish	9%	77%	12%	1%

For most purposes, decent signals are perfectly sufficient. Weak or non-existent signals cause far greater degradation in user experience.

Crowdsourced Coverage Data In San Marcos

Coverage Critic has 9,829 crowdsourced data points from 228 map hexes within the boundaries of San Marcos. Data is available for AT&T, T-Mobile, and Verizon.

Network	Unique Hexes	Total Observations
AT&T	208	7,999
T-Mobile	145	1,404
Verizon	102	400

Click here to toggle to the map's crowdsourced data layer.

Texas State-Wide Coverage Scores

Network	Coverage Score
Verizon	8.7 / 10
AT&T	8.7 / 10
T-Mobile	8.2 / 10

Data Sourcing

Coverage maps draw on data from the FCC's Broadband Data Collection and Coverage Critic's crowdsourcing.

The coverage information for San Marcos is rated as medium confidence. While the model is probably accurate, consider double-checking by consulting neighbors or checking coverage maps before signing up for a cell phone plan. Documentation is available elsewhere covering limitations of Coverage Critic's approach.