Hello, I'm working with a client who only provides services to 7 counties in the northeast ohio area. I conducted keyword research based off the DMA region that included each of the 7 counties. I'm working on optimizing services pages for the general region. In the future I anticipate creating local landing pages for every service and each specific area.

My question is this: While I'm doing on-page seo (titles, meta, h1s) for the more general services pages, would it make sense to target "northeast ohio" or mention counties?

Follow up question: When optimizing for "near me" searches has anyone tested using counties vs cities?