Please answer the following question by reasoning step-by-step.
Pinellas County is a county located in the state of Florida. As of the 2010 census, the population was 916,542. The county is part of the Tampa -- St. Petersburg -- Clearwater, Florida Metropolitan Statistical Area. Clearwater is the county seat, and St. Petersburg is the largest city.\n\nAnswer this question: what is the largest city in pinellas county?

St. Petersburg
The relevant information is: Clearwater is the county seat, and St.

Petersburg is the largest city.

.

The answer: St. Petersburg