4G LTE & 5G Coverage In Union City

The table below shows the proportion of Union City with coverage from different cellular technologies.

Network	4G Coverage	5G Coverage
AT&T	91%	88%
T-Mobile	82%	79%
Verizon	98%	94%
Dish	0%	55%

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

US Cellular And Dish Roaming Coverage

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

The 55% figure for Dish may understate what subscribers in Union City experience after accounting for roaming agreements.

Union City Cell Signal Strength

There are 457 map hexes within the census-defined boundaries of Union City. 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	7%	46%	39%	8%
T-Mobile	28%	39%	15%	18%
Verizon	12%	65%	21%	2%
Dish	0%	26%	28%	45%

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

Crowdsourced Coverage Data In Union City

Coverage Critic has 7,268 crowdsourced data points from 120 map hexes within the boundaries of Union City. Data is available for AT&T, T-Mobile, and Verizon.

Network	Unique Hexes	Total Observations
AT&T	107	3,591
T-Mobile	57	918
Verizon	81	2,747

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

California State-Wide Coverage Scores

Network	Coverage Score
Verizon	8.8 / 10
AT&T	8.6 / 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 Union City is rated as medium-high confidence. Documentation is available elsewhere covering limitations of Coverage Critic's approach.