The map above shows South Dakota and Mexico side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
South Dakota vs Mexico Geography
Land area: South Dakota has a land area of 75,808 square miles (196,342 km²), while Mexico has 750,561 square miles (1,943,945 km²). Mexico's land area is 9.9 times (890%) larger than South Dakota's.
Total area: South Dakota: 77,116 square miles (199,729 km²) vs Mexico: 758,449 square miles (1,964,375 km²), including inland and coastal water. Mexico's total area is 9.8 times (884%) larger than South Dakota's.
Length: South Dakota is 443 miles (712 km) long from north to south; Mexico is 1,890 miles (3,041 km). Mexico's north-south length is 4.3 times (327%) longer than South Dakota's.
Width: South Dakota spans 371 miles (597 km) east to west; Mexico spans 2,021 miles (3,252 km). Mexico's east-west width is 5.4 times (445%) wider than South Dakota's.
Highest point: South Dakota's highest point is Black Elk Peak at 7,198 feet (2,194 m); Mexico's is Pico de Orizaba at 18,491 feet (5,636 m). Pico de Orizaba is 11,293 feet higher than Black Elk Peak.
Lowest point: South Dakota's lowest point is Big Stone Lake at 966 feet; Mexico's is Laguna Salada at -33 feet. Mexico's lowest point is 999 feet lower.
South Dakota vs Mexico Population and History
Population: South Dakota has a population of 924,669 (2024), while Mexico has 131,231,919 (2026). Mexico's population is 141.9 times larger than South Dakota's.
Population density: South Dakota: 12.2 people per square mile vs Mexico: 174.8. Mexico's population density is 14.3 times higher than South Dakota's.
Biggest city: South Dakota's biggest city is Sioux Falls with 209,289 people; Mexico's is Mexico City with 9,209,944. Mexico City's population is 44.0 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 Mexico's Mexico City (17,734,212). Mexico City's population is 57.5 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. Mexico: Independent from Spain since September 27, 1821. In its current form, Mexico is the older of the two by 68 years.
South Dakota vs Mexico Economy
GDP: South Dakota's GDP is $76.8 billion (2024) vs Mexico's $1,832.6 billion. Mexico's economic output is 23.9 times larger than South Dakota's.
GDP per capita: South Dakota: $83,052 per person vs Mexico: $13,889. South Dakota's GDP per capita is 6.0 times (498%) higher than Mexico's.
Average income: South Dakota: $75,699 vs Mexico: $13,730 average income per person (per capita personal income). South Dakota's average income is 5.5 times (451%) higher than Mexico's.
Official Websites
South Dakota official website · Mexico official website
More Size Comparisons
All South Dakota size comparisons · All Mexico 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.