If keeping your property tax bill low is a priority — and for a fixed-income retirement, it should be — Martin County is the Treasure Coast's answer. Its ~0.88% effective rate is the lowest of the three Treasure Coast counties, well below St. Lucie's ~1.31%. On a $400,000 home, that's roughly $1,720/year less than the same home in Port St. Lucie. Here are the Martin County communities where you capture that edge.
Copperleaf — Palm City
A Pulte-built, low-maintenance active-lifestyle community in Palm City with a European-inspired clubhouse and an on-staff activities director. Not strictly age-restricted, but it draws active adults. Palm City's location — near Stuart, beaches, and I-95 — combined with Martin County's low rate makes it a strong tax-conscious choice.
Eaglewood — Hobe Sound
A 55+ equity golf community where unlimited golf is included in the HOA, set on 93 oak-canopied acres beside Jonathan Dickinson State Park. For golfers, the combination of included golf and Martin County's low taxes is hard to beat — just budget for the equity capital contribution at purchase.
The Stuart Condo Communities
For budget-focused buyers, Stuart's 55+ condos — Monterey Yacht & Country Club, Vista del Lago, Kingswood, Cedar Pointe, South River — pair Martin County's low rate with affordable, all-inclusive condo living. Monterey Yacht, often under $100K, can have one of the lowest total monthly carrying costs on the Treasure Coast.
Why the Savings Compound
Martin County's tax advantage isn't a one-time discount — it's every year you own. On a $400,000 home, ~$1,720/year saved versus St. Lucie becomes more than $25,000 over 15 years. On higher-value homes (like Palm City's), the gap widens further. For a long-term retirement home, county choice is one of the largest controllable costs you have.
The Trade-Off to Weigh
Martin County offers fewer brand-new mega-amenity communities than Port St. Lucie. If your priority is the newest construction with the largest resort clubhouses, you'll find more options in PSL — at higher taxes and usually a CDD. Martin County rewards buyers who value lower long-term cost, an affluent and quieter setting, and waterfront access over sheer amenity scale and new-build selection.
The Bottom Line
For the lowest taxes on the Treasure Coast, buy in Martin County. Copperleaf (Palm City) and Eaglewood (Hobe Sound) lead for single-family and golf buyers; the Stuart condos lead for budget buyers. All capture the ~0.88% rate that saves real money every year you own. Confirm each community's exact HOA and any capital contributions, then enjoy the lowest tax burden on the coast.