Fall River County, SD Property Tax: $1,876/yr (2026)
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The effective property tax rate in Fall River County is 1.06% of assessed home value. On a home at the county median value of $176,300, that works out to about $1,869 per year, or $156 per month. Fall River County is located in southwestern South Dakota, and is home to approximately 7,179 residents.
About Fall River County
Fall River County covers approximately 1,739.9 square miles in South Dakota. The county is home to about 7,179 residents living in roughly 4,101 housing units, of which 63.2% are owner-occupied. The median household income is $61,056, and the median home was built in 1971.
Fall River County borders Dawes County, Sioux County, Custer County, Niobrara County — useful comparisons if you're considering nearby areas with potentially different tax rates.
How Property Taxes Work in South Dakota
Property taxes in South Dakota are administered at the county level. Each county sets a millage rate applied to the assessed value of real property — the effective rate above accounts for any partial assessments and exemptions already built into the local tax base. Assessed value can differ meaningfully from current market value depending on how often the county reassesses and what fraction of market value it uses.
Most counties in South Dakota offer exemptions that reduce the taxable assessed value: homestead exemptions for primary residences, senior exemptions, disability exemptions, and veteran exemptions are common. These reduce your effective rate below the county-wide average shown here. Contact the Fall River County Assessor's office to learn which exemptions apply to your property and when to file.
Fall River County vs. Neighboring Counties
| Location | Eff. Rate | Median Home | Annual Tax |
|---|---|---|---|
| Fall River County, SD | 1.06% | $176,300 | $1,869 |
| South Dakota state average | 1.09% | — | $1,922* |
| Dawes County | 1.34% | $146,500 | $1,970 |
| Sioux County | 1.21% | $141,700 | $1,721 |
| Custer County | 0.78% | $327,200 | $2,549 |
| Niobrara County | 0.38% | $194,200 | $731 |
| US national average | 1.10% | $281,900 | $3,101 |
*State average annual tax computed at Fall River County's median home value of $176,300. Source: US Census ACS 2023 5-year estimates.
Frequently Asked Questions
How does Fall River County's property tax rate compare to the rest of South Dakota?
At 1.06%, Fall River County is lower than the South Dakota state average of 1.09%. On a home at the county median of $176,300, that means about $1,869 per year — versus $1,922 at the state average rate, a difference of $53 per year. Compared to the national average of 1.10%, Fall River County is below average.
What's a typical annual property tax bill in Fall River County?
For a home at the county median value of $176,300, the annual property tax in Fall River County is approximately $1,869 — or about $156 per month. For a home worth $264,450, expect around $2,803 per year. For a $352,600 home, approximately $3,738 per year. Use the calculator above to estimate taxes for any assessed value.
Where do I appeal a Fall River County property tax assessment?
Property assessment appeals in Fall River County are handled by the Fall River County Assessor's office. Most jurisdictions require filing within 30–90 days of receiving your assessment notice — confirm the specific deadline with the assessor's office before submitting, as deadlines and procedures vary by county. A successful appeal can reduce your assessed value and lower your tax bill for the current and future tax years.
What exemptions are available in Fall River County?
South Dakota counties commonly offer homestead exemptions for owner-occupied primary residences, senior citizen exemptions for qualifying homeowners aged 65 and older, exemptions for disabled residents, and veterans' exemptions. Each exemption reduces your assessed taxable value, which in turn reduces your effective tax rate below the county-wide 1.06% shown here. Contact the Fall River County Assessor's office to confirm which exemptions are available and the application deadlines.
Data sources: US Census Bureau ACS 2023 5-Year Estimates, US Census Gazetteer (2024), County Adjacency File