Nantucket County has 1 towns and the 7th-highest tick-borne-disease baseline of Massachusetts' 14 counties, with a 2025 Lyme rate of 101cases per 100,000 people. Pick your town below for today's score, a 7-day outlook, and what's driving it (combined Dukes & Nantucket (DPH does not split)).
Tick risk is local. Pick the town nearest you.