Property tax in Allendale County, South Carolina

By Brent Chudoba, editor Updated September 23, 2026

The median property tax bill in Allendale County, South Carolina is $669 a year, which is about 0.88% of the county's median home value of $76,200. That effective rate is higher than the typical South Carolina county (0.51%) and higher than the national median (0.81%). These are American Community Survey 5-year estimates (2024); your own bill depends on your home's assessed value and any exemptions.

Estimate the property tax on a home in Allendale County

Enter a home's market value for a ballpark at Allendale County's average effective rate of 0.88% (Census). The real bill depends on the home's assessed value, the millage where it sits and any exemptions.

Home market value

Estimated property tax: $671 / year

Property tax in Allendale County at a glance

Allendale County, South Carolina property tax (Census ACS, reviewed September 23, 2026)
Measure	Value
Median annual property tax	$669
Median home value	$76,200
Effective tax rate	0.88%
Typical South Carolina county rate	0.51%
National median county rate	0.81%

Effective rate = median real estate taxes paid divided by median home value. Source: U.S. Census Bureau, American Community Survey 5-year estimates.

How does Allendale County compare in South Carolina?

Among South Carolina's 46 counties, Allendale County has the highest effective property-tax rate. That places it among the most heavily taxed counties in the state. Nationally, it ranks 1403rd of 3135 US counties by effective rate. See every South Carolina county ranked.

How much do homeowners in Allendale County actually pay?

The median is only the middle bill. Across Allendale County's 1,998 owner-occupied homes, 0.8% pay $3,000 or more a year in property tax, 2.6% pay at least $2,000, and 43% pay under $800. Another 29.2% report paying no property tax at all, which usually means an exemption covers the whole bill.

Annual property tax paid by Allendale County homeowners (Census ACS 2020-2024)
Annual bill	Homes	Share
Under $800	859	43%
$800 to $1,499	316	15.8%
$1,500 to $1,999	189	9.5%
$2,000 to $2,999	36	1.8%
$3,000 or more	15	0.8%
No property tax paid	583	29.2%

Owners with a mortgage pay a median of $752 and owners without one pay $613. Owners who have paid off a home have usually held it longer, and in states that cap how fast an existing owner's assessment can rise, long-held homes carry lower assessed values. Census table B25103.

How does the Allendale County property tax bill compare with local incomes?

The median property tax bill of $669 is about 1.5% of the median income of Allendale County homeowner households, $44,800 a year. That compares two middles, so a retiree in a long-held home can pay a far larger share. 61.7% of Allendale County's occupied homes are lived in by their owners; renters pay property tax too, just folded into rent.

Have property taxes gone up in Allendale County?

Yes. The median bill went from $396 in 2015-2019 to $669 in 2020-2024, a 68.9% rise. Over the same span the median home value moved 54.9%, from $49,200 to $76,200. Bills rose faster than values, which usually means local rates went up or an exemption shrank.

Two Census ACS 5-year periods with no survey years in common, in each period's own dollars. A change counts only if it exceeds the combined 90% margin of error.

Property tax in counties next to Allendale County

Allendale County borders 6 counties, 2 of them across the state line.

Allendale County and its neighbors, highest effective rate first (Census ACS 2020-2024)
County	Effective rate	Median bill	Median home value
Screven County, GA	1.22%	$1,519	$124,300
Allendale County, SC (this county)	0.88%	$669	$76,200
Bamberg County, SC	0.83%	$811	$97,800
Hampton County, SC	0.8%	$897	$112,000
Barnwell County, SC	0.73%	$775	$106,000
Burke County, GA	0.68%	$1,025	$151,600
Colleton County, SC	0.55%	$900	$162,500

How is a home assessed in Allendale County?

South Carolina assesses homes at 4% of market value in every county, Allendale County included. How South Carolina assesses and reappraises homes.

Is there a homestead exemption in Allendale County?

Not as a dollar amount. South Carolina owner-occupants get a 4% assessment ratio instead of 6% plus an exemption from school operating millage; apply for the 4% ratio with the county assessor. That is the South Carolina rule, and it applies in Allendale County. South Carolina's exemptions and relief programs in full.

When are property taxes due in Allendale County?

One annual payment. Bills go out around September 30 and the practical due date is January 15. Penalties then stack: 3% after January 16, another 7% after February 2, and another 5% after March 17. A county may by ordinance offer a five-payment installment plan, elected between December 1 and January 15, but that is a local option rather than a right.

That is the South Carolina rule. Allendale County issues and collects the bill, so the dates printed on your statement are the ones that bind you.

How to appeal your Allendale County property assessment

You contest the assessed value with the County assessor, then the county Board of Assessment Appeals, then the Administrative Law Court. The filing deadline is typically 90 days after the assessment notice is mailed. That is the South Carolina rule; Allendale County sets the exact dates and forms. The South Carolina appeal process step by step.

South Carolina rules from primary state sources, reviewed September 7, 2026; sources on the South Carolina page.

Work out your own numbers

Sources

Median real estate taxes paid and median home value for Allendale County, South Carolina: U.S. Census Bureau, American Community Survey 5-year estimates (2020-2024), tables B25103, B25077, B25102, B25119 and B25003; the five-year comparison uses the 2015-2019 estimates. Neighboring counties: Census county adjacency file.