Charleston, Dorchester County, South Carolina Property Taxes
Median Charleston, SC effective property tax rate: 0.69%, significantly lower than the national median of 1.02%, but lower than the South Carolina state median of 0.72%.
Median Charleston, SC home value: $547,412
Median annual Charleston, SC tax bill: $3,124, $724 higher than the national median property tax bill of $2,400.
How are property taxes in Dorchester calculated?
Property taxes in Charleston, 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 Charleston’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Charleston, knowing local tax details benefits homeowners and investors.
Last Updated March 1, 2025
Charleston, Dorchester County, South Carolina Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.69%
Estimate Property Tax Bill
$3,777
$3,505
Property Tax Rates Across Charleston, Dorchester County, South Carolina
Property Tax Rates Across Charleston, Dorchester County, South Carolina
Source: Ownwell

0.82%
0.92%
1.02%
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 Tax Rate
0.69%
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 Dorchester County Tax Rate
0.84%
Median Effective South Carolina Tax Rate
0.72%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Charleston, Dorchester County, South Carolina
Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
29406 | N/A | N/A | N/A | N/A | N/A |
29414 | N/A | N/A | N/A | N/A | N/A |
29420 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Charleston, Dorchester County, South Carolina
When examining property taxes in Charleston, 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 Dorchester County Assessor 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 Dorchester 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 Charleston.
For example, the median home price in Charleston is $547,412, with tax bills ranging significantly across the county.
Property Tax Assessment Values Across Charleston, Dorchester County, South Carolina
Source: Ownwell

$188,773
$201,514
$214,255
Median Charleston Market Value
$547,412
Median Dorchester County Market Value
$202,000
Median South Carolina Market Value
$140,000
Median United States Market Value
$235,294
Property Tax Assessment Values Across Charleston, Dorchester County, South Carolina
Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
29406 | N/A | N/A | N/A | N/A | N/A |
29414 | N/A | N/A | N/A | N/A | N/A |
29420 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Charleston, Dorchester County, South Carolina
Property Tax Bills Across Charleston, Dorchester County, South Carolina
Source: Ownwell

$1,933
$2,077
$2,220
Median Charleston Tax Bill
$3,124
Median Dorchester County Tax Bill
$1,926
Median South Carolina Tax Bill
$1,086
Median United States Tax Bill
$2,400
Property Tax Bills Across Charleston, Dorchester County, South Carolina
Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
---|---|---|---|---|---|
29406 | N/A | N/A | N/A | N/A | N/A |
29414 | N/A | N/A | N/A | N/A | N/A |
29420 | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell