Property Tax in Union County
via TaxByCounty
Union's rate just below national median
Union County's 1.112% effective rate sits slightly below the national median of 1.56%, placing it in the nation's below-average tax tier. Despite this favorable rate, Union's median property tax of $2,997 exceeds the national median of $2,690 due to significantly higher home values.
Union slightly above state average rate
Union's 1.112% rate runs just 1.6% above South Dakota's state average of 1.094%, making it nearly representative of statewide conditions. However, Union's median tax of $2,997 substantially exceeds the state average of $1,785, driven entirely by Union's median home value of $269,500—the highest in the region.
Union's higher values drive tax bills
Union's 1.112% rate matches or beats most neighboring counties, but its median tax of $2,997 towers over peers like Spink ($1,539), Stanley ($2,423), and Turner ($2,072). Union's premium property values, not its tax rate, explain why residents pay more than neighbors despite moderate effective rates.
Union median home: $2,997 yearly tax
Union County's median home valued at $269,500 generates $2,997 in annual property taxes—the region's highest absolute tax bill. With mortgage considerations, total tax obligation reaches $3,026, reflecting Union's status as the region's most expensive housing market.
High-value properties warrant appeals
Union County homeowners with expensive properties face substantial annual tax bills and stand to save the most from successful assessment appeals. In a high-value market like Union, even minor percentage reductions in assessed value translate to thousands in cumulative tax savings.