The first screen has to name the counties you actually drive to
A visitor in Dunedin and a visitor in Riverview both need an answer to the same question before they read anything else.
Service area is a real constraint here, not a footer detail. Tampa Bay is split between Hillsborough and Pinellas with limited crossings, so the trip that looks short on a map can consume an afternoon.
Put it in the top region of the page in plain words. Naming the counties and the communities you regularly work beats a vague claim about serving the greater Tampa Bay area, which every visitor reads as no answer at all.
Say the limits too. If you cross the bay only for projects above a certain scope, or only on certain days, publishing that filters out inquiries you would decline anyway and makes you look like a firm that runs a schedule.
A small static map with the counties marked usually outperforms a list of thirty city names. The list reads as SEO. The map reads as a business.