Property tax in Grant County, South Dakota

By Brent Chudoba, editor Updated September 23, 2026

The median property tax bill in Grant County, South Dakota is $1,557 a year, which is about 0.91% of the county's median home value of $171,000. That effective rate is lower than the typical South Dakota county (1.02%) 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 Grant County

Enter a home's market value for a ballpark at Grant County's average effective rate of 0.91% (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: $1,556 / year

Property tax in Grant County at a glance

Grant County, South Dakota property tax (Census ACS, reviewed September 23, 2026)
Measure	Value
Median annual property tax	$1,557
Median home value	$171,000
Effective tax rate	0.91%
Typical South Dakota county rate	1.02%
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 Grant County compare in South Dakota?

Among South Dakota's 66 counties, Grant County has the 50th highest effective property-tax rate: 49 rank higher and 16 rank lower. That is on the lower side for South Dakota. Nationally, it ranks 1333rd of 3135 US counties by effective rate. See every South Dakota county ranked.

How much do homeowners in Grant County actually pay?

The median is only the middle bill. Across Grant County's 2,291 owner-occupied homes, 18.1% pay $3,000 or more a year in property tax, 35.4% pay at least $2,000, and 22.1% pay under $800.

Annual property tax paid by Grant County homeowners (Census ACS 2020-2024)
Annual bill	Homes	Share
Under $800	506	22.1%
$800 to $1,499	589	25.7%
$1,500 to $1,999	368	16.1%
$2,000 to $2,999	397	17.3%
$3,000 or more	414	18.1%
No property tax paid	17	0.7%

Owners with a mortgage pay a median of $1,809 and owners without one pay $1,355. 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 Grant County property tax bill compare with local incomes?

The median property tax bill of $1,557 is about 1.9% of the median income of Grant County homeowner households, $83,693 a year. That compares two middles, so a retiree in a long-held home can pay a far larger share. 75.6% of Grant 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 Grant County?

Yes. The median bill went from $1,326 in 2015-2019 to $1,557 in 2020-2024, a 17.4% rise. Over the same span the median home value moved 27.9%, from $133,700 to $171,000. Bills rose more slowly than values, which is what assessment caps and falling millage rates do: the county is taxing a smaller share of each home's worth.

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 Grant County

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

Grant County and its neighbors, highest effective rate first (Census ACS 2020-2024)
County	Effective rate	Median bill	Median home value
Day County, SD	0.98%	$1,693	$173,600
Codington County, SD	0.97%	$2,308	$237,700
Roberts County, SD	0.97%	$1,492	$154,500
Grant County, SD (this county)	0.91%	$1,557	$171,000
Lac qui Parle County, MN	0.9%	$1,422	$157,600
Big Stone County, MN	0.87%	$1,473	$169,100
Deuel County, SD	0.82%	$1,694	$205,900

How is a home assessed in Grant County?

South Dakota assesses homes at 85% of market value in every county, Grant County included. How South Dakota assesses and reappraises homes.

Is there a homestead exemption in Grant County?

Not as a dollar amount. A South Dakota home you own and live in gets the owner-occupied classification, which lowers the school general fund levy. File the certificate with the county director of equalization by March 15. That is the South Dakota rule, and it applies in Grant County. South Dakota's exemptions and relief programs in full.

When are property taxes due in Grant County?

Taxes are due and payable January 1 of the year after the assessment, collected by the county treasurer. You can split the bill: pay the first half by April 30 and the second by October 31 and nothing goes delinquent. Miss those and the unpaid half becomes delinquent on May 1 or November 1 and starts accruing monthly interest. Bills of $50 or less must be paid in full by April 30, and when a deadline lands on a weekend it moves to the last working day of that month.

South Dakota splits the bill into 2 installments. That is the South Dakota rule. Grant County issues and collects the bill, so the dates printed on your statement are the ones that bind you.

How to appeal your Grant County property assessment

You contest the assessed value with the local board of equalization, then the county board of equalization, then the Office of Hearing Examiners or circuit court. The filing deadline is typically mid-March to the local board, with the county board about three weeks later; the exact dates shift each year. That is the South Dakota rule; Grant County sets the exact dates and forms. The South Dakota appeal process step by step.

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

Work out your own numbers

Sources

Median real estate taxes paid and median home value for Grant County, South Dakota: 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.