Is my Wilmington Island property tax too high?

The median annual property tax bill in Wilmington Island is $3,103. Using Chatham County's millage rate of 3.371%, the computed tax on the median home ($404,900) is approximately $5,459. If your assessed value is higher than what your home would actually sell for, you are overpaying.

Who do I contact to appeal my Wilmington Island property tax?

Appeals are filed with the Chatham County Board of Assessors, not at the city level. File a PT-311A form within 45 days of your assessment notice.

How much of my income goes to property taxes in Wilmington Island?

At the median, Wilmington Island homeowners pay 3.3% of their household income ($93,924/year) in property taxes. That is a significant burden -- a successful appeal directly increases your take-home.

Why are Wilmington Island home values higher than the Chatham County average?

Wilmington Island's premium reflects demand driven by school quality, proximity to employment centers, and neighborhood amenities. Higher values mean a larger potential overassessment -- a 10% overvaluation costs approximately $545 per year in excess taxes.

How do Wilmington Island property taxes compare to Pooler?

Wilmington Island's median home value of $404,900 is higher than Pooler's $322,400. Higher values mean a larger tax bill and a bigger payoff from a successful appeal.

How is my Wilmington Island property tax bill calculated?

Georgia taxes property at 40% of fair market value. For Wilmington Island's median home ($404,900), the assessed value is $161,960. Multiply by Chatham County's millage rate of 3.371% to get your annual bill. Many Wilmington Island homeowners find that assessed values have climbed faster than actual sale prices. Comparing your value to 3-5 recent sales of similar homes is the quickest way to spot an overassessment.

Is it worth appealing a small overvaluation in Wilmington Island?

Yes. Even a $134 per year overcharge (from a $10,000 overvaluation at Chatham County's 3.371% rate) adds up to $402 over three years with the 299c freeze. The appeal is free to file and there is no risk of your assessment increasing.

Can my property tax go up if I appeal?

No. Georgia law (O.C.G.A. § 48-5-311) protects you: the county cannot raise your assessed value above what they originally set just because you filed an appeal. The Board of Equalization only rules on the disputed value. Worst case, your appeal is denied and you keep your current assessment -- your taxes will not increase as a result of appealing.

Wilmington Island, GA: Is Your Property Tax Assessment Too High? (2026)

By AppealAlly Team · Published April 1, 2026

The median Wilmington Island homeowner pays $3,103/year in property taxes. That is 3.3% of median household income. See how Wilmington Island compares and check your savings potential.

Key Takeaways

Appeal deadline: 45 days from your assessment notice date - strictly enforced.Median home value: $404,900 in Wilmington Island.Median annual tax bill: $3,103.Tax burden: 3.3% of median household income in Wilmington Island.Potential savings: ~$545/year from a 10% reduction, or $1,635 over 3 years with the 299c freeze.Filed with: Chatham County Board of Assessors (not the city).No risk: Georgia law guarantees your assessment cannot increase from filing an appeal.

Wilmington Island is a large Chatham County community east of Savannah, where home values average around $405,000 -- about 34% above the county median. Island properties carry premium assessments, and this guide helps you verify whether yours reflects what homes here are genuinely selling for.

Wilmington Island Appeal Quick Facts

Appeal Deadline: 45 days from the date of the assessment notice
Appeal Form: PT-311A
Filed With: Chatham County Board of Assessors
Assessor Phone: 912-652-7271
Median Home Value: $404,900 (34% above Chatham County median)
Estimated Annual Tax Bill: $3,103
Tax Burden: 3.3% of median household income

Is your Wilmington Island property tax assessment too high?

The median home in Wilmington Island is valued at $404,900, producing an estimated annual tax bill of $5,459 at Chatham County's 3.371% combined rate. That means the typical Wilmington Island homeowner spends 3.3% of household income on property taxes alone. Wilmington Island combines higher-than-average home values with a heavy tax burden. If your home is overassessed by even 10%, the cost adds up fast. Higher home values mean a larger tax bill and a bigger payoff from a successful appeal. At $404,900, Wilmington Island home values are 34% above the Chatham County median, 137% above Georgia's statewide median of $170,200, 27% above the national median of $318,000.

Check If Your Wilmington Island Home Is Overassessed

How does Wilmington Island compare to other Chatham County cities?

Wilmington Island's median home value is the highest among these Chatham County cities, which means overassessment costs more here than anywhere else in the county.

What evidence matters for Wilmington Island appeals?

In a mid-size city like Wilmington Island, you should be able to find 3-5 comparable sales within Chatham County. Look for homes that sold in the last 12 months with similar square footage, age, and condition. If local sales are limited, expand your search to neighboring areas within the county. For the full evidence strategy, exemption details, and step-by-step filing instructions, see our Chatham County Property Tax Guide.

How much can you save in Wilmington Island?

Based on a combined tax rate of 3.371%. Your actual rate may vary by tax district.

A 10% reduction on the median Wilmington Island home ($404,900 down by $40,490) would save approximately $546 per year, or $1,638 over three years with the 299c value freeze.

At 3.3% of household income, even a modest reduction in your assessed value makes a real difference in your annual budget.

File your appeal through Chatham County

Property tax appeals in Wilmington Island are filed with the Chatham County Board of Assessors. You have 45 days from the date of your assessment notice to submit a PT-311A form.

Chatham County Board of Assessors: P.O. Box 9786, Savannah, GA 31412 | 912-652-7271 For the full appeal process and deadline details, see our Chatham County Property Tax Guide.

Other Cities in Chatham County

Explore Chatham County

Based on 2024 American Community Survey estimates and Chatham County millage rates.

Frequently Asked Questions

Is my Wilmington Island property tax too high?: The median annual property tax bill in Wilmington Island is $3,103. Using Chatham County's millage rate of 3.371%, the computed tax on the median home ($404,900) is approximately $5,459. If your assessed value is higher than what your home would actually sell for, you are overpaying.
Who do I contact to appeal my Wilmington Island property tax?: Appeals are filed with the Chatham County Board of Assessors, not at the city level. File a PT-311A form within 45 days of your assessment notice.
How much of my income goes to property taxes in Wilmington Island?: At the median, Wilmington Island homeowners pay 3.3% of their household income ($93,924/year) in property taxes. That is a significant burden -- a successful appeal directly increases your take-home.
Why are Wilmington Island home values higher than the Chatham County average?: Wilmington Island's premium reflects demand driven by school quality, proximity to employment centers, and neighborhood amenities. Higher values mean a larger potential overassessment -- a 10% overvaluation costs approximately $545 per year in excess taxes.
How do Wilmington Island property taxes compare to Pooler?: Wilmington Island's median home value of $404,900 is higher than Pooler's $322,400. Higher values mean a larger tax bill and a bigger payoff from a successful appeal.
How is my Wilmington Island property tax bill calculated?: Georgia taxes property at 40% of fair market value. For Wilmington Island's median home ($404,900), the assessed value is $161,960. Multiply by Chatham County's millage rate of 3.371% to get your annual bill. Many Wilmington Island homeowners find that assessed values have climbed faster than actual sale prices. Comparing your value to 3-5 recent sales of similar homes is the quickest way to spot an overassessment.
Is it worth appealing a small overvaluation in Wilmington Island?: Yes. Even a $134 per year overcharge (from a $10,000 overvaluation at Chatham County's 3.371% rate) adds up to $402 over three years with the 299c freeze. The appeal is free to file and there is no risk of your assessment increasing.
Can my property tax go up if I appeal?: No. Georgia law (O.C.G.A. § 48-5-311) protects you: the county cannot raise your assessed value above what they originally set just because you filed an appeal. The Board of Equalization only rules on the disputed value. Worst case, your appeal is denied and you keep your current assessment -- your taxes will not increase as a result of appealing.