The map above shows South Dakota and Spain side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
South Dakota vs Spain Geography
Land area: South Dakota has a land area of 75,808 square miles (196,342 km²), while Spain has 192,657 square miles (498,980 km²). Spain's land area is 2.5 times (154%) larger than South Dakota's.
Total area: South Dakota: 77,116 square miles (199,729 km²) vs Spain: 195,364 square miles (505,990 km²), including inland and coastal water. Spain's total area is 2.5 times (153%) larger than South Dakota's.
Length: South Dakota is 443 miles (712 km) long from north to south; Spain is 546 miles (879 km). Spain's north-south length is 1.2 times (23%) longer than South Dakota's.
Width: South Dakota spans 371 miles (597 km) east to west; Spain spans 697 miles (1,122 km). Spain's east-west width is 1.9 times (88%) wider than South Dakota's.
Highest point: South Dakota's highest point is Black Elk Peak at 7,198 feet (2,194 m); Spain's is Teide (Tenerife) at 12,188 feet (3,715 m). Teide (Tenerife) is 4,990 feet higher than Black Elk Peak.
Lowest point: South Dakota's lowest point is Big Stone Lake at 966 feet; Spain's is Atlantic Ocean at 0 feet. Spain's lowest point is 966 feet lower.
South Dakota vs Spain Population and History
Population: South Dakota has a population of 924,669 (2024), while Spain has 49,801,559 (2026). Spain's population is 53.9 times larger than South Dakota's.
Population density: South Dakota: 12.2 people per square mile vs Spain: 258.5. Spain's population density is 21.2 times higher than South Dakota's.
Biggest city: South Dakota's biggest city is Sioux Falls with 209,289 people; Spain's is Madrid with 3,266,126. Madrid's population is 15.6 times larger than Sioux Falls'.
Largest metro area: South Dakota's largest metropolitan area is Sioux Falls, SD-MN metro area (308,266 people) vs Spain's Madrid (6,497,000). Madrid's population is 21.1 times larger than Sioux Falls, SD-MN metro area's.
History: South Dakota: Admitted to the Union on November 2, 1889, as the 40th state. Spain: A unified kingdom since 1479; the current constitution dates from 1978. In its current form, Spain is the older of the two by 410 years.
South Dakota vs Spain Economy
GDP: South Dakota's GDP is $76.8 billion (2024) vs Spain's $1,906.5 billion. Spain's economic output is 24.8 times larger than South Dakota's.
GDP per capita: South Dakota: $83,052 per person vs Spain: $38,627. South Dakota's GDP per capita is 2.2 times (115%) higher than Spain's.
Average income: South Dakota: $75,699 vs Spain: $37,120 average income per person (per capita personal income). South Dakota's average income is 2.0 times (104%) higher than Spain's.
Official Websites
South Dakota official website · Spain official website
More Size Comparisons
All South Dakota size comparisons · All Spain 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.