The Public Advocates Office, which is part of the California Public Service Commission, undertook a a deep analysis of broadband pricing in the state, correlated with the level of competition. The study was conducted from August through October of 2025.
The study looked at four large markets in the state: San Mateo, Oakland, Los Angeles, and San Diego. By choosing these markets, the study encompasses the four largest ISPs in the state – AT&T, Comcast, Charter, and Cox. The study gathered information on available broadband plans by location, advertised speed tiers, and promotional prices. The study also overlaid household incomes from the Census across the data it gathered to explore if household income played a role in prices offered by the big ISPs. The markets are interesting because they not only vary by ISP, but each market has some neighborhoods where the only gigabit provider is the cable company, and other neighborhoods where there is also one or more fiber competitor.
The overall conclusion of the study won’t surprise anybody who follows the big ISPs – broadband prices vary by the level of competition. In aggregate, the study showed that the price for broadband in competitive neighborhoods across the four markets was around $51 per month, while prices in non-competitive markets were $15 to $40 higher per month for comparable services.
The study resulted in three major conclusions:
Gigabit Fiber Drives Lower Broadband Prices. The study demonstrated that price competition only kicked in for neighborhoods where there are multiple ISPs offering gigabit broadband. That means a cable company and at least one fiber provider. The study showed that when there is competition for gigabit broadband, the competition extends downward to slower speeds offered by the big ISPs.
The study demonstrates something that is probably obvious, in that pricing is trimmed even further when there are more than two gigabit providers in a neighborhood.
Sub-Gigabit Providers Do Not Reliably Constrain Price. This is an interesting finding. It says that when the only competition to a cable company is an FWA cellular provider or a fixed wireless ISP, the cable company does not engage in significant price competition to keep customers. The study showed that, in fact, some of the neighborhoods with this kind of competition see the highest prices from the big ISPs.
This doesn’t mean that cable companies never compete hard against 100 Mbps providers, but this finding makes a lot of sense. Customers are attracted to the low prices of the FWA providers, and both T-Mobile and Verizon have price options as low as $35 per month. Cable companies, at least in these four large markets, are not willing to drop prices to compete with those prices.
Income is Not a Primary Driver of Prices. This is a bit of a surprise, because there were previous studies that suggested that pricing was lower in neighborhoods with the highest household incomes. That may have been true five years ago, but the data now suggests that prices offered by the big ISPs are mostly related to the level of competition.
The study made some other interesting observations. One observation is that in competitive neighborhoods, promotional prices can vary by household, and somebody might be paying a significantly higher or lower price than their immediate neighbors.
The study is worth reading for anybody interested in how big ISPs compete. The study has a lot of detail about how big ISPs stratify addresses and pricing offers based on the presence of other gigabit providers, while not caring much about ISPs that compete with slower products.







