Dewees Island, Charleston County, South Carolina Property Taxes
Median Dewees Island, SC effective property tax rate: 1.19%, significantly higher than the national median of 1.02%, but lower than the South Carolina state median of 0.72%.
Median Dewees Island, SC home value: $805,000
Median annual Dewees Island, SC tax bill: $6,453, $4,053 higher than the national median property tax bill of $2,400.
How are property taxes in Charleston calculated?
Property taxes in Dewees Island, SC are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Dewees Island’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Dewees Island, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Dewees Island, Charleston County, South Carolina Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.19%
Estimate Property Tax Bill
$9,580
$8,890
Ownwell’s Dewees Island Property Tax Bill Calculator empowers homeowners, real estate investors, and potential buyers to estimate their annual property taxes in Dewees Island with just two data points.
By entering your property's estimated assessed value, our calculator applies Dewees Island’s median effective tax rate to accurately estimate your property tax bill. Note that your property's assessed value — determined by your county — reflects any exemptions you may have, ensuring a precise calculation for your property tax obligations.
This insightful tool helps you understand potential tax liabilities and highlights how Ownwell can assist in reducing property taxes in Charleston County.
For those interested in more localized information, please scroll down to explore city-level trends!
Property Tax Rates Across Dewees Island, Charleston County, South Carolina
Local government entities set tax rates, which can vary widely within a state. Each year, counties estimate their required budget to provide services and divide that by the total value of all taxable property within their jurisdiction. This calculation results in the property tax rate. While votes and laws are involved in setting tax rates and budgets, in a nutshell, this is the annual process.
In Dewees Island, located in Charleston County, South Carolina, the effective property tax rate is a crucial factor for homeowners. Compared to other cities in South Carolina, Dewees Island's rate offers insight into the local tax landscape. The median property tax rate in South Carolina is slightly higher than the national median, reflecting the state's approach to funding public services. For homeowners, understanding these rates is essential for financial planning and making informed decisions about property investments. By comparing Dewees Island’s effective property tax rate to the median rates in South Carolina and the U.S., property owners can better assess their tax obligations and potential savings through appeals or exemptions.
Property Tax Rates Across Dewees Island, Charleston County, South Carolina
Source: Ownwell

0.37%
1.09%
1.81%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Dewees Island Tax Rate
1.19%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Charleston County Tax Rate
0.53%
Median Effective South Carolina Tax Rate
0.72%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Dewees Island, Charleston County, South Carolina
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
29451 | 0.21% | 0.23% | 1.19% | 1.20% | 1.22% |
Source: Ownwell
Property Tax Assessment Values Across Dewees Island, Charleston County, South Carolina
When examining property taxes in Dewees Island, SC, understanding the distinction between "market value" and "assessed value" is crucial. The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Charleston County Assessor's Office estimates the market value for tax purposes. The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
In Charleston County, assessment notices are sent in the spring each year. They’ll typically reach your mailbox by the middle of April. Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Dewees Island. For example, the median home price in Dewees Island is $805,000, with tax bills ranging significantly across the county. Zip code 29451 has the highest median home price at $805,000.
Property Tax Assessment Values Across Dewees Island, Charleston County, South Carolina
Source: Ownwell

$25,350
$890,900
$1,756,450
Median Dewees Island Market Value
$805,000
Median Charleston County Market Value
$305,700
Median South Carolina Market Value
$140,000
Median United States Market Value
$235,294
Property Tax Assessment Values Across Dewees Island, Charleston County, South Carolina
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
29451 | $428,800 | $560,000 | $805,000 | $1,210,000 | $1,508,400 |
Source: Ownwell
Property Tax Bills Across Dewees Island, Charleston County, South Carolina
In Dewees Island, Charleston County, SC, property tax bills are calculated by multiplying the assessed value of a home by the local tax rate. The assessed value is typically a percentage of the market value, which can fluctuate based on market conditions and property improvements. Homeowners on Dewees Island face a median tax bill of $6,453, significantly above the national median of $2,400. This high tax bill reflects the area's median home price of $805,000. Factors influencing the tax bill include property location, market trends, and any applicable exemptions or deductions.
High property taxes can strain homeowners, impacting their financial planning. However, Ownwell offers services to help reduce these burdens. By analyzing property assessments and identifying potential discrepancies or opportunities for exemptions, Ownwell assists homeowners in appealing their tax bills. This can lead to significant savings, ensuring that homeowners pay only their fair share. With expertise in navigating the complexities of property tax regulations, Ownwell provides valuable support to those seeking to optimize their property tax situation.
Property Tax Bills Across Dewees Island, Charleston County, South Carolina
Source: Ownwell

$366
$5,731
$11,095
Median Dewees Island Tax Bill
$6,453
Median Charleston County Tax Bill
$1,751
Median South Carolina Tax Bill
$1,086
Median United States Tax Bill
$2,400
Property Tax Bills Across Dewees Island, Charleston County, South Carolina
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
29451 | $1,386 | $2,093 | $6,453 | $10,583 | $15,669 |
Source: Ownwell