The map above shows New Mexico and South Australia side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Mexico vs South Australia Geography
Land area
- New Mexico has a land area of 121,313 square miles (314,198 km²), while South Australia has 380,048 square miles (984,321 km²).
- South Australia's land area is 3.1 times (213%) larger than New Mexico's.
Total area
- New Mexico: 121,593 square miles (314,925 km²) vs South Australia: 380,048 square miles (984,321 km²), including inland and coastal water.
- South Australia's total area is 3.1 times (213%) larger than New Mexico's.
Length
- New Mexico is 395 miles (635 km) long from north to south; South Australia is 1,078 miles (1,735 km).
- South Australia's north-south length is 2.7 times (173%) longer than New Mexico's.
Width
- New Mexico spans 498 miles (801 km) east to west; South Australia spans 825 miles (1,328 km).
- South Australia's east-west width is 1.7 times (66%) wider than New Mexico's.
Highest point
- New Mexico's highest point is Wheeler Peak at 13,150 feet (4,008 m); South Australia's is Mount Woodroffe at 4,708 feet (1,435 m).
- Wheeler Peak is 8,442 feet higher than Mount Woodroffe.
Lowest point
- New Mexico's lowest point is Red Bluff Reservoir at 2,842 feet; South Australia's is Lake Eyre at -49 feet.
- South Australia's lowest point is 2,891 feet lower.
New Mexico vs South Australia Population and History
Population
- New Mexico has a population of 2,130,256 (2024), while South Australia has 1,908,182 (2025).
- New Mexico's population is 1.1 times (12%) larger than South Australia's.
Population density
- New Mexico: 17.6 people per square mile vs South Australia: 5.0.
- New Mexico's population density is 3.5 times (252%) higher than South Australia's.
Largest metro area
- New Mexico's largest metropolitan area is Albuquerque, NM metro area (926,303 people) vs South Australia's Greater Adelaide (1,491,015).
- Greater Adelaide's population is 1.6 times (61%) larger than Albuquerque, NM metro area's.
History
- New Mexico: Admitted to the Union on January 6, 1912, as the 47th state.
- South Australia: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1836.
- In its current form, South Australia is the older of the two by 11 years.
New Mexico vs South Australia Economy
GDP
- New Mexico's GDP is $147.1 billion (2024) vs South Australia's $100.2 billion.
- New Mexico's economic output is 1.5 times (47%) larger than South Australia's.
GDP per capita
- New Mexico: $69,046 per person vs South Australia: $52,511.
- New Mexico's GDP per capita is 1.3 times (31%) higher than South Australia's.
Official Websites
New Mexico official website · South Australia official website
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More Size Comparisons
All New Mexico size comparisons · All South Australia 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.