The map above shows New York and South Dakota side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New York vs South Dakota Geography
Land area: New York has a land area of 47,123 square miles (122,049 km²), while South Dakota has 75,808 square miles (196,342 km²). South Dakota's land area is 1.6 times (61%) larger than New York's.
Total area: New York: 54,559 square miles (141,306 km²) vs South Dakota: 77,116 square miles (199,729 km²), including inland and coastal water. South Dakota's total area is 1.4 times (41%) larger than New York's.
Length: New York is 312 miles (503 km) long from north to south; South Dakota is 443 miles (712 km). South Dakota's north-south length is 1.4 times (42%) longer than New York's.
Width: New York spans 415 miles (668 km) east to west; South Dakota spans 371 miles (597 km). New York's east-west width is 1.1 times (12%) wider than South Dakota's.
Highest point: New York's highest point is Mount Marcy at 5,335 feet (1,626 m); South Dakota's is Black Elk Peak at 7,198 feet (2,194 m). Black Elk Peak is 1,863 feet higher than Mount Marcy.
Lowest point: New York's lowest point is Atlantic Ocean at 0 feet; South Dakota's is Big Stone Lake at 966 feet. New York's lowest point is 966 feet lower.
New York vs South Dakota Population and History
Population: New York has a population of 19,867,248 (2024), while South Dakota has 924,669 (2024). New York's population is 21.5 times larger than South Dakota's.
Population density: New York: 421.6 people per square mile vs South Dakota: 12.2. New York's population density is 34.6 times higher than South Dakota's.
Biggest city: New York's biggest city is New York with 8,478,072 people; South Dakota's is Sioux Falls with 209,289. New York's population is 40.5 times larger than Sioux Falls'.
Largest metro area: New York's largest metropolitan area is New York-Newark-Jersey City, NY-NJ metro area (19,940,274 people) vs South Dakota's Sioux Falls, SD-MN metro area (308,266). New York-Newark-Jersey City, NY-NJ metro area's population is 64.7 times larger than Sioux Falls, SD-MN metro area's.
History: New York: Admitted to the Union on July 26, 1788, as the 11th state. South Dakota: Admitted to the Union on November 2, 1889, as the 40th state. In its current form, New York is the older of the two by 101 years.
New York vs South Dakota Economy
GDP: New York's GDP is $2,322.1 billion (2024) vs South Dakota's $76.8 billion. New York's economic output is 30.2 times larger than South Dakota's.
GDP per capita: New York: $116,883 per person vs South Dakota: $83,052. New York's GDP per capita is 1.4 times (41%) higher than South Dakota's.
Average income: New York: $85,552 vs South Dakota: $75,699 average income per person (per capita personal income). New York's average income is 1.1 times (13%) higher than South Dakota's.
New York vs South Dakota Counties
Number of counties: New York has 62 counties, while South Dakota has 66. South Dakota's county count is 1.1 times (6%) higher than New York's.
Biggest county by area: New York's largest county is St. Lawrence County at 2,680 square miles; South Dakota's is Meade County at 3,471 square miles. Meade County's land area is 1.3 times (30%) larger than St. Lawrence County's.
Smallest county by area: New York: New York County (23 sq mi) vs South Dakota: Clay County (412 sq mi). Clay County's land area is 18.1 times larger than New York County's.
Most populous county: New York: Kings County (2,617,631 people) vs South Dakota: Minnehaha County (208,639 people). Kings County's population is 12.5 times larger than Minnehaha County's.
Least populous county: New York: Hamilton County (5,082 people) vs South Dakota: Jones County (874 people). Hamilton County's population is 5.8 times (481%) larger than Jones County's.
Richest county: New York: New York County ($217,075 per capita income) vs South Dakota: Union County ($146,712). New York County's income is 1.5 times (48%) richer than Union County's.
Poorest county: New York: Allegany County ($44,689 per capita income) vs South Dakota: Ziebach County ($32,778). Allegany County's income is 1.4 times (36%) richer than Ziebach County's.
New York vs South Dakota Taxes
State income tax: New York has a top income tax rate of 10.9%, while South Dakota has no state income tax. New York's top rate is 10.9 percentage points higher.
Property tax: New York: 1.45% effective rate vs South Dakota: 1.02% of home value per year. New York's rate is 0.43 percentage points higher.
Sales tax: New York: 8.54% combined state and average local rate vs South Dakota: 6.11%. New York's combined rate is 2.43 percentage points higher.
Official Websites
New York official website · South Dakota official website
More Size Comparisons
All New York 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.