The map above shows South Dakota and Tennessee side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
South Dakota vs Tennessee Geography
Land area
- South Dakota has a land area of 75,808 square miles (196,342 km²), while Tennessee has 41,224 square miles (106,770 km²).
- South Dakota's land area is 1.8 times (84%) larger than Tennessee's.
Total area
- South Dakota: 77,116 square miles (199,729 km²) vs Tennessee: 42,130 square miles (109,116 km²), including inland and coastal water.
- South Dakota's total area is 1.8 times (83%) larger than Tennessee's.
Length
- South Dakota is 443 miles (712 km) long from north to south; Tennessee is 191 miles (308 km).
- South Dakota's north-south length is 2.3 times (132%) longer than Tennessee's.
Width
- South Dakota spans 371 miles (597 km) east to west; Tennessee spans 497 miles (800 km).
- Tennessee's east-west width is 1.3 times (34%) wider than South Dakota's.
Highest point
- South Dakota's highest point is Black Elk Peak at 7,198 feet (2,194 m); Tennessee's is Clingmans Dome at 6,624 feet (2,019 m).
- Black Elk Peak is 574 feet higher than Clingmans Dome.
Lowest point
- South Dakota's lowest point is Big Stone Lake at 966 feet; Tennessee's is Mississippi River at 178 feet.
- Tennessee's lowest point is 788 feet lower.
South Dakota vs Tennessee Population and History
Population
- South Dakota has a population of 924,669 (2024), while Tennessee has 7,227,750 (2024).
- Tennessee's population is 7.8 times (682%) larger than South Dakota's.
Population density
- South Dakota: 12.2 people per square mile vs Tennessee: 175.3.
- Tennessee's population density is 14.4 times higher than South Dakota's.
Biggest city
- South Dakota's biggest city is Sioux Falls with 209,289 people; Tennessee's is Nashville with 704,963.
- Nashville's population is 3.4 times (237%) larger than Sioux Falls'.
Largest metro area
- South Dakota's largest metropolitan area is Sioux Falls, SD-MN metro area (308,266 people) vs Tennessee's Nashville-Davidson--Murfreesboro--Franklin, TN metro area (2,150,553).
- Nashville-Davidson--Murfreesboro--Franklin, TN metro area's population is 7.0 times (598%) larger than Sioux Falls, SD-MN metro area's.
History
- South Dakota: Admitted to the Union on November 2, 1889, as the 40th state.
- Tennessee: Admitted to the Union on June 1, 1796, as the 16th state.
- In its current form, Tennessee is the older of the two by 93 years.
South Dakota vs Tennessee Economy
GDP
- South Dakota's GDP is $76.8 billion (2024) vs Tennessee's $561.2 billion.
- Tennessee's economic output is 7.3 times (631%) larger than South Dakota's.
GDP per capita
- South Dakota: $83,052 per person vs Tennessee: $77,645.
- South Dakota's GDP per capita is 1.1 times (7%) higher than Tennessee's.
Average income
- South Dakota: $75,699 vs Tennessee: $66,504 average income per person (per capita personal income).
- South Dakota's average income is 1.1 times (14%) higher than Tennessee's.
South Dakota vs Tennessee Counties
Number of counties
- South Dakota has 66 counties, while Tennessee has 95.
- Tennessee's county count is 1.4 times (44%) higher than South Dakota's.
Biggest county by area
- South Dakota's largest county is Meade County at 3,471 square miles; Tennessee's is Shelby County at 753 square miles.
- Meade County's land area is 4.6 times (361%) larger than Shelby County's.
Smallest county by area
- South Dakota: Clay County (412 sq mi) vs Tennessee: Trousdale County (114 sq mi).
- Clay County's land area is 3.6 times (260%) larger than Trousdale County's.
Most populous county
- South Dakota: Minnehaha County (208,639 people) vs Tennessee: Shelby County (910,530 people).
- Shelby County's population is 4.4 times (336%) larger than Minnehaha County's.
Least populous county
- South Dakota: Jones County (874 people) vs Tennessee: Pickett County (5,108 people).
- Pickett County's population is 5.8 times (484%) larger than Jones County's.
Richest county
- South Dakota: Union County ($146,712 per capita income) vs Tennessee: Williamson County ($139,704).
- Union County's income is 1.1 times (5%) richer than Williamson County's.
Poorest county
- South Dakota: Ziebach County ($32,778 per capita income) vs Tennessee: Lake County ($31,572).
- Ziebach County and Lake County have about the same income.
South Dakota vs Tennessee Taxes
State income tax
- South Dakota has no state income tax, while Tennessee has no state income tax.
Property tax
- South Dakota: 1.02% effective rate vs Tennessee: 0.45% of home value per year.
- South Dakota's rate is 0.57 percentage points higher.
Sales tax
- South Dakota: 6.11% combined state and average local rate vs Tennessee: 9.61%.
- Tennessee's combined rate is 3.5 percentage points higher.
Official Websites
South Dakota official website · Tennessee official website
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More Size Comparisons
All South Dakota size comparisons · All Tennessee size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.