Taxes & Insurance in St. Simons Island
St. Simons Island sits in Glynn County, one of six Georgia counties covered by the Georgia Underwriting Association's coastal Windstorm and Hail Area -- a genuinely different, more serious insurance picture than this batch's three inland markets, with real, disclosed disagreement on the actual homeowners insurance cost figure.
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Learn moreGeorgia's Flat State Income Tax and Retirement Exclusion Both Apply
Georgia levies a flat 4.99% state income tax for 2026. Georgia's retirement income exclusion (up to $65,000 per person 65 and older, with Social Security fully exempt) is genuinely relevant here, unlike this batch's three younger, working-age markets -- see the retiring topic page for how this applies to St. Simons Island's real, large retiree population.
Glynn County Property Tax
Glynn County approved a 2025 millage rate of 14.9 mills, with the Glynn County Board of Education separately maintaining its own rate at the same 14.9 mills (unchanged from 2024) -- these are the county and county-school portions. Whether St. Simons Island specifically carries any additional special-district levies was not confirmed this session. As statewide, assessed value for tax purposes is set at 40% of fair market value.
Georgia's Real Coastal Insurance Structure: The GUA and a Six-County Windstorm Area
Georgia has no Texas-TWIA-style mandatory statewide wind pool. Instead, wind/hail coverage in coastal counties runs through the private market and surplus lines first, with the Georgia Underwriting Association (GUA) -- the state's FAIR Plan -- as insurer of last resort for a defined six-county coastal "Windstorm and Hail Area": Chatham, Glynn, Camden, McIntosh, Liberty, and Bryan counties. Glynn County, home to St. Simons Island, is confirmed included. GUA's Plan of Operation includes a Hurricane Underwriting Restriction that can freeze new binding once a named storm is active -- bind coverage well before hurricane season (June 1-November 30), not during an active threat.
A Real, Disclosed Disagreement on the Actual Insurance Cost
This session found a genuine, significant conflict in the data: one aggregator cites St. Simons Island homeowners insurance at just $854-$1,176/year, while multiple other sources describe the Golden Isles (including St. Simons Island specifically) as ranking among Georgia's MOST expensive home insurance markets, with coastal Glynn and Chatham counties cited as paying the state's steepest premiums. For comparison, Savannah's (also coastal, Chatham County) homeowners premiums were sourced elsewhere in this project at $2,725-$4,909+/year -- an order of magnitude above the low St. Simons figure. This record treats the low figure as UNRELIABLE, likely a generic or templated site estimate not adjusted for genuine coastal risk. Get a property-specific quote from a coastal-Georgia insurance specialist rather than relying on either cited range -- this is more essential here than for any other market in this four-market batch.
Key takeaways
- Georgia's flat 4.99% state income tax and its retirement income exclusion (up to $65,000 per person 65+, Social Security fully exempt) both apply, and the exclusion is genuinely relevant given this market's large retiree population.
- Glynn County's 2025 county and county-school millage rates both sit at 14.9 mills; whether St. Simons Island specifically carries additional special-district levies was not confirmed this session.
- Glynn County is confirmed as one of six Georgia counties (with Chatham, Camden, McIntosh, Liberty, Bryan) in the GUA's coastal Windstorm and Hail Area -- Georgia's real FAIR-plan structure for wind/hail coverage of last resort.
- Homeowners insurance cost data disagreed SHARPLY this session ($854-$1,176/year per one low-confidence aggregator vs. a much higher, better-corroborated coastal-Georgia premium narrative) -- get a property-specific quote rather than trusting either figure.
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