The map above shows Oregon and South Dakota side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oregon vs South Dakota Geography
Land area
- Oregon has a land area of 95,997 square miles (248,630 km²), while South Dakota has 75,808 square miles (196,342 km²).
- Oregon's land area is 1.3 times (27%) larger than South Dakota's.
Total area
- Oregon: 98,379 square miles (254,799 km²) vs South Dakota: 77,116 square miles (199,729 km²), including inland and coastal water.
- Oregon's total area is 1.3 times (28%) larger than South Dakota's.
Length
- Oregon is 453 miles (730 km) long from north to south; South Dakota is 443 miles (712 km).
- Oregon and South Dakota have about the same north-south length.
Width
- Oregon spans 445 miles (715 km) east to west; South Dakota spans 371 miles (597 km).
- Oregon's east-west width is 1.2 times (20%) wider than South Dakota's.
Highest point
- Oregon's highest point is Mount Hood at 11,232 feet (3,424 m); South Dakota's is Black Elk Peak at 7,198 feet (2,194 m).
- Mount Hood is 4,034 feet higher than Black Elk Peak.
Lowest point
- Oregon's lowest point is Pacific Ocean at 0 feet; South Dakota's is Big Stone Lake at 966 feet.
- Oregon's lowest point is 966 feet lower.
Oregon vs South Dakota Population and History
Population
- Oregon has a population of 4,272,371 (2024), while South Dakota has 924,669 (2024).
- Oregon's population is 4.6 times (362%) larger than South Dakota's.
Population density
- Oregon: 44.5 people per square mile vs South Dakota: 12.2.
- Oregon's population density is 3.6 times (265%) higher than South Dakota's.
Biggest city
- Oregon's biggest city is Portland with 635,749 people; South Dakota's is Sioux Falls with 209,289.
- Portland's population is 3.0 times (204%) larger than Sioux Falls'.
Largest metro area
- Oregon's largest metropolitan area is Portland-Vancouver-Hillsboro, OR-WA metro area (2,537,904 people) vs South Dakota's Sioux Falls, SD-MN metro area (308,266).
- Portland-Vancouver-Hillsboro, OR-WA metro area's population is 8.2 times (723%) larger than Sioux Falls, SD-MN metro area's.
History
- Oregon: Admitted to the Union on February 14, 1859, as the 33rd state.
- South Dakota: Admitted to the Union on November 2, 1889, as the 40th state.
- In its current form, Oregon is the older of the two by 30 years.
Oregon vs South Dakota Economy
GDP
- Oregon's GDP is $330.2 billion (2024) vs South Dakota's $76.8 billion.
- Oregon's economic output is 4.3 times (330%) larger than South Dakota's.
GDP per capita
- Oregon: $77,299 per person vs South Dakota: $83,052.
- South Dakota's GDP per capita is 1.1 times (7%) higher than Oregon's.
Average income
- Oregon: $70,823 vs South Dakota: $75,699 average income per person (per capita personal income).
- South Dakota's average income is 1.1 times (7%) higher than Oregon's.
Oregon vs South Dakota Counties
Number of counties
- Oregon has 36 counties, while South Dakota has 66.
- South Dakota's county count is 1.8 times (83%) higher than Oregon's.
Biggest county by area
- Oregon's largest county is Harney County at 10,134 square miles; South Dakota's is Meade County at 3,471 square miles.
- Harney County's land area is 2.9 times (192%) larger than Meade County's.
Smallest county by area
- Oregon: Multnomah County (431 sq mi) vs South Dakota: Clay County (412 sq mi).
- Multnomah County and Clay County have about the same land area.
Most populous county
- Oregon: Multnomah County (795,897 people) vs South Dakota: Minnehaha County (208,639 people).
- Multnomah County's population is 3.8 times (281%) larger than Minnehaha County's.
Least populous county
- Oregon: Wheeler County (1,456 people) vs South Dakota: Jones County (874 people).
- Wheeler County's population is 1.7 times (67%) larger than Jones County's.
Richest county
- Oregon: Deschutes County ($86,176 per capita income) vs South Dakota: Union County ($146,712).
- Union County's income is 1.7 times (70%) richer than Deschutes County's.
Poorest county
- Oregon: Malheur County ($42,974 per capita income) vs South Dakota: Ziebach County ($32,778).
- Malheur County's income is 1.3 times (31%) richer than Ziebach County's.
Oregon vs South Dakota Taxes
State income tax
- Oregon has a top income tax rate of 9.9%, while South Dakota has no state income tax.
- Oregon's top rate is 9.9 percentage points higher.
Property tax
- Oregon: 0.78% effective rate vs South Dakota: 1.02% of home value per year.
- South Dakota's rate is 0.24 percentage points higher.
Sales tax
- Oregon: 0% combined state and average local rate vs South Dakota: 6.11%.
- South Dakota's combined rate is 6.11 percentage points higher.
Official Websites
Oregon official website · South Dakota official website
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More Size Comparisons
All Oregon size comparisons · All South Dakota 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.