What is the property tax rate in Sully County?

The effective rate is 0.83%: homeowners paid a median $1,715 a year on a median home value of $205,400 (Census ACS 2020-2024). The South Dakota rate is 1.06% and the US rate 0.94%.

How much is property tax on a $300,000 house in Sully County?

About $2,505 a year ($209 a month) at the county's effective rate of 0.83%. Your bill depends on your assessed value, local levies and exemptions.

Is property tax in Sully County high?

Sully County's rate is 21% lower than the South Dakota rate and 11% lower than the US rate. It ranks 57th of 65 counties in South Dakota and 1,496 of 3,134 US counties (1 = highest).

Why might my bill be different?

The rate here is an average across homeowners. Bills depend on when the home was last assessed, the levies of your city and school district, and exemptions or caps you qualify for.

Property taxSouth DakotaCensus ACS 2020–2024

Sully County, South Dakota property tax rate

Homeowners in Sully County pay a median $1,715 a year in property tax, an effective rate of 0.83% of home value.The median home is worth $205,400. That rate is 21% lower than the South Dakota rate (1.06%) and 11% lower than the US rate (0.94%). It is the 57th highest of 65 counties in South Dakota.

Effective rate

0.83%

#57 of 65 in SD · #1,496 of 3,134 in the US

Median tax paid

$1,715

± $147 · US $3,119

Median home value

$205,400

US $332,700

Paid by homeowners

$998,600

a year, 464 owner-occupied homes

Compared with the state and the US

Sully County's rate is 11% lower than the US rate

Effective property tax rate (median tax ÷ median home value). Grey ticks: the other 64 counties in South Dakota.

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates.

Estimate your property tax in Sully County

Home value × the county's effective rate. Change the value to see your estimate.

Home value

Estimated property tax a year

$1,715

$143 a month at 0.83%, the effective rate for Sully County.

At the South Dakota rate (1.06%)	$2,174
At the US rate (0.94%)	$1,926

An estimate from Census averages, not your bill. Your tax depends on your assessed value, local levies and any exemptions (homestead, senior, veteran) you claim.

Neighbouring counties

Dewey County has the highest rate next to Sully County

Effective property tax rate of every county that borders Sully County

County	Effective rate
Dewey County median $1,050	1.51%
Potter County median $1,717	1.42%
Stanley County median $2,679	1.32%
Hughes County median $2,659	1.10%
Hyde County median $1,743	0.96%
Sully County median $1,715	0.83%

U.S. Census Bureau, ACS 2020–2024 5-year estimates; county adjacency file 2024.

What homeowners pay

22% of Sully County homeowners pay $3,000 or more a year (US 49%)

Owner-occupied homes by yearly real estate taxes paid, with and without a mortgage combined

Yearly property tax paid	Share of homeowners
No real estate taxes paid	1%
Less than $800	22%
$800 to $1,499	19%
$1,500 to $1,999	22%
$2,000 to $2,999	15%
$3,000 or more	22%

U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25102.

Median tax with a mortgage: $1,865; without a mortgage: $1,569. Homes with a mortgage tend to be newer, bought more recently and worth more.

Five years earlier

The median tax bill rose 43% between the 2015–2019 and 2020–2024 surveys while median home value rose 43%, so the effective rate was unchanged at 0.83%.

	2015–2019	2020–2024	Change
Median property tax paid	$1,201	$1,715	+43%
Median home value	$144,100	$205,400	+43%
Effective rate	0.83%	0.83%	+0.00 pts

Where to check your own bill

Your actual bill is set locally: the county assessor values your home, and the county, city, school district and other local districts each set a rate on that value. Exemptions such as a homestead exemption can cut the bill. Check your assessment and bill with the Sully County assessor or tax collector.

State rules and exemptions: South Dakota Department of Revenue, property tax.

Questions and answers

What is the property tax rate in Sully County?: The effective rate is 0.83%: homeowners paid a median $1,715 a year on a median home value of $205,400 (Census ACS 2020-2024). The South Dakota rate is 1.06% and the US rate 0.94%.
How much is property tax on a $300,000 house in Sully County?: About $2,505 a year ($209 a month) at the county's effective rate of 0.83%. Your bill depends on your assessed value, local levies and exemptions.
Is property tax in Sully County high?: Sully County's rate is 21% lower than the South Dakota rate and 11% lower than the US rate. It ranks 57th of 65 counties in South Dakota and 1,496 of 3,134 US counties (1 = highest).
Why might my bill be different?: The rate here is an average across homeowners. Bills depend on when the home was last assessed, the levies of your city and school district, and exemptions or caps you qualify for.

South Dakota property tax rates by county1.06%
Property taxes by stateall 50 states and DC
Property tax calculatorany US county
Where do my state taxes go in South Dakota?state budget
South Dakota income tax calculatortake-home pay

Sources and notes

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates (released December 2025), tables B25103 (median real estate taxes paid by mortgage status), B25077 (median value), B25102 (mortgage status by real estate taxes paid), B25090 and B25082 (aggregate taxes paid and aggregate value) and B25003 (tenure). Owner-occupied homes. Public domain.
Five years earlier: ACS 2015–2019 5-year estimates, tables B25103 and B25077. Dollars are nominal.
Effective rate = median real estate taxes paid ÷ median home value. Taxes are what homeowners report paying for the year; values are what they say the home would sell for. Where the Census Bureau caps the median tax at “$10,000+”, the rate is total taxes paid ÷ total home value instead. ± figures are the Census 90% margins of error.
Page built 2026-10-10.