California is the most expensive state to live in the US. Most of the most expensive cities in the US are located in California. In this article, we take a look at the top 10 most expensive cities in California with the highest one-bedroom apartment rental prices as of November 2022. One-bedroom apartment rental prices have increased in all major California cities over the past year (November 2021 to November 2022). The biggest rental increases were in San Diego (+21.40% yoy) and Santa Ana (+20.80% yoy). The highest rents are in San Francisco ($3,020 for a one-bedroom apartment), San Jose ($2,600) and San Diego ($2,500).