Union County Property Tax Rate — South Dakota 2026
In Union County, South Dakota, homeowners pay a median annual property tax of $2,997 on a median home value of $269,500, resulting in an effective property tax rate of 1.11%. This rate is roughly in line with the South Dakota state average (1.09%) and 0.20% higher than the national average (0.91%).
How Union County Compares
Homeowners in Union County face a relatively high property tax burden, paying more than both the South Dakota state average and the national average.
Property Tax Calculator for Union County
Enter your home’s estimated market value to calculate your approximate annual property tax in Union County, South Dakota.
This estimate uses the effective tax rate of 1.11% based on ACS data. Actual taxes may differ based on local assessments, exemptions, and levies.
Housing Breakdown
Property Tax Details for Union County, South Dakota
The median property tax paid by homeowners in Union County is $2,997 per year. Based on a median home value of $269,500, this translates to an effective property tax rate of 1.11%.
For context, the statewide median property tax in South Dakota is $2,590 with an effective rate of 1.09%, while the national average effective rate stands at 0.91%. Union County’s effective rate is roughly in line with the South Dakota state average (1.09%).
Of the 7,124 housing units in Union County, approximately 71.27% are owner-occupied and 28.73% are renter-occupied. Homeownership rates can influence local tax policy, as communities with higher ownership rates often see more voter engagement on property tax issues.
Important: The data on this page is for informational purposes only and should not be used as tax advice. Actual property taxes depend on your property’s assessed value, local millage rates, and any applicable exemptions. Contact your county assessor’s office for precise tax information.