Barnwell County, South Carolina Property Taxes
Property Taxes in Barnwell County, South Carolina
Median Barnwell County effective property tax rate: 0.77%, significantly lower than the national median of 1.02%.
Median Barnwell County home value: $32,302
Median annual Barnwell County tax bill: $517, $1,883 lower than the national median property tax bill of $2,400.
How are property taxes in Barnwell County calculated?
Property taxes in Barnwell County 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 Barnwell County’s property tax system, exemptions, and reduction opportunities can lead to significant savings. Whether you live in Barnwell or another part of Barnwell County, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Barnwell County, South Carolina Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
0.77%
Estimate Property Tax Bill
$249
$231
How Does the Barnwell County Property Tax Calculator Work?
Use this Barnwell County property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Barnwell County's median effective tax rate of 0.77% to generate your estimate.
Enter your property's estimated assessed value — the figure the appraisal district assigns for tax purposes, which is typically lower than market value after applicable exemptions. Our calculator uses the median effective rate for a more accurate estimate than the statutory millage rate alone.
Your actual bill may vary based on your specific exemptions, local school district levies, and any special assessment districts that apply to your property. Barnwell County's median tax rate is higher than South Carolina's 0.66% median rate, but the median tax bill of $517 is still far below the national median property tax bill of $2,400 and $1,883 lower than the state median.
For a more precise estimate, scroll down to explore city and ZIP code-level tax rate trends across Barnwell County.
Property Tax Rates Across Barnwell County, South Carolina
What Are Effective Property Tax Rates Across Barnwell County?
Local government entities set tax rates, which vary widely across Barnwell County. Each year, the county estimates its budget for public services and divides that total by the assessed value of all taxable property within its jurisdiction.
Below, compare Barnwell County's effective property tax rate to other counties in South Carolina or the U.S. median of 1.02%.
Barnwell County's median effective rate stands at 0.77%, which is lower than the national median of 1.02%. Within Barnwell County, the highest rate is found in Martin at 2.29%, while Olar has the lowest at 0.70%.
These variations reflect differences in local school district levies, special assessment districts assessments, and special district bonds — which compound the base county rate.
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 Barnwell County Tax Rate
0.77%
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 South Carolina Tax Rate
0.66%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Barnwell County, South Carolina
| City | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Barnwell | 0.34% | 0.57% | 0.77% | 0.91% | 2.75% |
| Blackville | 0.29% | 0.54% | 0.77% | 0.83% | 2.94% |
| Martin | 0.76% | 0.77% | 2.29% | 2.76% | 2.77% |
| Olar | 0.24% | 0.30% | 0.70% | 0.77% | 2.25% |
| Williston | 0.32% | 0.60% | 0.77% | 0.79% | 2.88% |
| Elko | N/A | N/A | N/A | N/A | N/A |
| Ulmer | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Assessment Values Across Barnwell County, South Carolina
When examining property taxes in Barnwell County, 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 Barnwell 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.
Assessment notices:
In Barnwell County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of May.
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 Barnwell County.
For example, the median tax bill in Barnwell County is $517, with tax bills ranging significantly across the county. Barnwell has the highest median home price at $38,650.
Property Tax Assessment Values Across Barnwell County, South Carolina
Source: Ownwell
$17,100
$27,875
$38,650
Median Barnwell County Market Value
$32,302
Median South Carolina Market Value
$188,850
Median United States Market Value
$235,294
Property Tax Assessment Values Across Barnwell County, South Carolina
| City | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Barnwell | $3,600 | $9,200 | $38,650 | $102,250 | $171,600 |
| Blackville | $2,700 | $5,800 | $23,100 | $59,600 | $124,580 |
| Martin | $1,100 | $6,900 | $17,100 | $38,600 | $58,020 |
| Olar | $2,370 | $7,975 | $31,371 | $75,881 | $162,518 |
| Williston | $3,100 | $7,500 | $31,000 | $86,800 | $155,960 |
| Elko | N/A | N/A | N/A | N/A | N/A |
| Ulmer | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Property Tax Bills Across Barnwell County, South Carolina
Property tax bills in Barnwell County are based on a home’s assessed value, not its market price alone. Local tax rates are applied to that assessed value to determine the final bill, so two homes with similar market values can still owe different amounts depending on exemptions and assessment rules.
For Barnwell County, the median home price is $32,302, which helps explain why many tax bills are relatively modest compared with the national median property tax bill of $2,400. The 25th percentile tax bill is $169, while the 75th percentile is $1,050 and the 90th percentile reaches $1,572. That spread shows how much a homeowner’s bill can vary based on property characteristics and local taxing jurisdictions.
Homeowners are affected when assessed values rise, since higher assessments can increase taxes even if the home is not sold. Differences across towns also matter, with Martin showing the highest median tax bill at $755.00 and Olar the lowest at $356.00.
Median Barnwell County Tax Bill
$517
Median South Carolina Tax Bill
$1,227
Median United States Tax Bill
$2,400
Property Tax Bills Across Barnwell County, South Carolina
| City | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| Barnwell | $58 | $208 | $607 | $1,149 | $1,683 |
| Blackville | $41 | $142 | $382 | $829 | $1,366 |
| Martin | $293 | $364 | $755 | $815 | $960 |
| Olar | $69 | $138 | $356 | $814 | $1,317 |
| Williston | $39 | $140 | $497 | $986 | $1,478 |
| Elko | N/A | N/A | N/A | N/A | N/A |
| Ulmer | N/A | N/A | N/A | N/A | N/A |
Source: Ownwell
Don't miss the deadline to appeal!
Links | |
|---|---|
| Barnwell Tax Assessor | |
| Website | www.qpublic.net |