The map above shows Missouri and New Mexico side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Missouri vs New Mexico Geography
Land area: Missouri has a land area of 68,746 square miles (178,052 km²), while New Mexico has 121,313 square miles (314,198 km²). New Mexico's land area is 1.8 times (76%) larger than Missouri's.
Total area: Missouri: 69,707 square miles (180,540 km²) vs New Mexico: 121,593 square miles (314,925 km²), including inland and coastal water. New Mexico's total area is 1.7 times (74%) larger than Missouri's.
Length: Missouri is 328 miles (529 km) long from north to south; New Mexico is 395 miles (635 km). New Mexico's north-south length is 1.2 times (20%) longer than Missouri's.
Width: Missouri spans 437 miles (703 km) east to west; New Mexico spans 498 miles (801 km). New Mexico's east-west width is 1.1 times (14%) wider than Missouri's.
Highest point: Missouri's highest point is Taum Sauk Mountain at 1,771 feet (540 m); New Mexico's is Wheeler Peak at 13,150 feet (4,008 m). Wheeler Peak is 11,379 feet higher than Taum Sauk Mountain.
Lowest point: Missouri's lowest point is St. Francis River at 230 feet; New Mexico's is Red Bluff Reservoir at 2,842 feet. Missouri's lowest point is 2,612 feet lower.
Missouri vs New Mexico Population and History
Population: Missouri has a population of 6,245,466 (2024), while New Mexico has 2,130,256 (2024). Missouri's population is 2.9 times (193%) larger than New Mexico's.
Population density: Missouri: 90.8 people per square mile vs New Mexico: 17.6. Missouri's population density is 5.2 times (416%) higher than New Mexico's.
Biggest city: Missouri's biggest city is Kansas City with 516,032 people; New Mexico's is Albuquerque with 560,326. Albuquerque's population is 1.1 times (9%) larger than Kansas City's.
Largest metro area: Missouri's largest metropolitan area is St. Louis, MO-IL metro area (2,811,927 people) vs New Mexico's Albuquerque, NM metro area (926,303). St. Louis, MO-IL metro area's population is 3.0 times (204%) larger than Albuquerque, NM metro area's.
History: Missouri: Admitted to the Union on August 10, 1821, as the 24th state. New Mexico: Admitted to the Union on January 6, 1912, as the 47th state. In its current form, Missouri is the older of the two by 91 years.
Missouri vs New Mexico Economy
GDP: Missouri's GDP is $448.7 billion (2024) vs New Mexico's $147.1 billion. Missouri's economic output is 3.1 times (205%) larger than New Mexico's.
GDP per capita: Missouri: $71,846 per person vs New Mexico: $69,046. Missouri and New Mexico have about the same GDP per capita.
Average income: Missouri: $64,920 vs New Mexico: $58,249 average income per person (per capita personal income). Missouri's average income is 1.1 times (11%) higher than New Mexico's.
Missouri vs New Mexico Counties
Number of counties: Missouri has 115 counties, while New Mexico has 33. Missouri's county count is 3.5 times (248%) higher than New Mexico's.
Biggest county by area: Missouri's largest county is Texas County at 1,177 square miles; New Mexico's is Catron County at 6,924 square miles. Catron County's land area is 5.9 times (488%) larger than Texas County's.
Smallest county by area: Missouri: St. Louis city (62 sq mi) vs New Mexico: Los Alamos County (109 sq mi). Los Alamos County's land area is 1.8 times (77%) larger than St. Louis city's.
Most populous county: Missouri: St. Louis County (992,929 people) vs New Mexico: Bernalillo County (671,747 people). St. Louis County's population is 1.5 times (48%) larger than Bernalillo County's.
Least populous county: Missouri: Worth County (1,872 people) vs New Mexico: Harding County (635 people). Worth County's population is 2.9 times (195%) larger than Harding County's.
Richest county: Missouri: St. Louis County ($104,775 per capita income) vs New Mexico: Los Alamos County ($98,378). St. Louis County's income is 1.1 times (7%) richer than Los Alamos County's.
Poorest county: Missouri: Douglas County ($40,515 per capita income) vs New Mexico: Cibola County ($36,397). Douglas County's income is 1.1 times (11%) richer than Cibola County's.
Missouri vs New Mexico Taxes
State income tax: Missouri has a top income tax rate of 4.7%, while New Mexico has a top income tax rate of 5.9%. New Mexico's top rate is 1.2 percentage points higher.
Property tax: Missouri: 0.79% effective rate vs New Mexico: 0.63% of home value per year. Missouri's rate is 0.16 percentage points higher.
Sales tax: Missouri: 8.44% combined state and average local rate vs New Mexico: 7.68%. Missouri's combined rate is 0.76 percentage points higher.
Official Websites
Missouri official website · New Mexico official website
More Size Comparisons
All Missouri size comparisons · All New 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.