It's going to depend on whether you want to buy raw land, or land that has been approved for building. Is it on public water/sewer, or private? If private, has there been a perc test for septic system? What kind of square footage? Waterfront?
If you're not presently working with a real estate agent, your best option is to visit nneren.com. This is our statewide MLS system, and the most factual and up-to-date information available. Happy hunting