The map above shows Maryland and Missouri side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maryland vs Missouri Geography
Land area: Maryland has a land area of 9,711 square miles (25,151 km²), while Missouri has 68,746 square miles (178,052 km²). Missouri's land area is 7.1 times (608%) larger than Maryland's.
Total area: Maryland: 12,406 square miles (32,131 km²) vs Missouri: 69,707 square miles (180,540 km²), including inland and coastal water. Missouri's total area is 5.6 times (462%) larger than Maryland's.
Length: Maryland is 231 miles (371 km) long from north to south; Missouri is 328 miles (529 km). Missouri's north-south length is 1.4 times (42%) longer than Maryland's.
Width: Maryland spans 243 miles (391 km) east to west; Missouri spans 437 miles (703 km). Missouri's east-west width is 1.8 times (80%) wider than Maryland's.
Highest point: Maryland's highest point is Hoye-Crest at 3,362 feet (1,025 m); Missouri's is Taum Sauk Mountain at 1,771 feet (540 m). Hoye-Crest is 1,591 feet higher than Taum Sauk Mountain.
Lowest point: Maryland's lowest point is Atlantic Ocean at 0 feet; Missouri's is St. Francis River at 230 feet. Maryland's lowest point is 230 feet lower.
Maryland vs Missouri Population and History
Population: Maryland has a population of 6,263,220 (2024), while Missouri has 6,245,466 (2024). Maryland and Missouri have about the same population.
Population density: Maryland: 645.0 people per square mile vs Missouri: 90.8. Maryland's population density is 7.1 times (610%) higher than Missouri's.
Biggest city: Maryland's biggest city is Baltimore with 568,271 people; Missouri's is Kansas City with 516,032. Baltimore's population is 1.1 times (10%) larger than Kansas City's.
Largest metro area: Maryland's largest metropolitan area is Washington-Arlington-Alexandria, DC-VA-MD-WV metro area (6,436,489 people) vs Missouri's St. Louis, MO-IL metro area (2,811,927). Washington-Arlington-Alexandria, DC-VA-MD-WV metro area's population is 2.3 times (129%) larger than St. Louis, MO-IL metro area's.
History: Maryland: Admitted to the Union on April 28, 1788, as the 7th state. Missouri: Admitted to the Union on August 10, 1821, as the 24th state. In its current form, Maryland is the older of the two by 33 years.
Maryland vs Missouri Economy
GDP: Maryland's GDP is $546.0 billion (2024) vs Missouri's $448.7 billion. Maryland's economic output is 1.2 times (22%) larger than Missouri's.
GDP per capita: Maryland: $87,180 per person vs Missouri: $71,846. Maryland's GDP per capita is 1.2 times (21%) higher than Missouri's.
Average income: Maryland: $79,259 vs Missouri: $64,920 average income per person (per capita personal income). Maryland's average income is 1.2 times (22%) higher than Missouri's.
Maryland vs Missouri Counties
Number of counties: Maryland has 24 counties, while Missouri has 115. Missouri's county count is 4.8 times (379%) higher than Maryland's.
Biggest county by area: Maryland's largest county is Frederick County at 661 square miles; Missouri's is Texas County at 1,177 square miles. Texas County's land area is 1.8 times (78%) larger than Frederick County's.
Smallest county by area: Maryland: Baltimore city (81 sq mi) vs Missouri: St. Louis city (62 sq mi). Baltimore city's land area is 1.3 times (31%) larger than St. Louis city's.
Most populous county: Maryland: Montgomery County (1,082,273 people) vs Missouri: St. Louis County (992,929 people). Montgomery County's population is 1.1 times (9%) larger than St. Louis County's.
Least populous county: Maryland: Kent County (19,557 people) vs Missouri: Worth County (1,872 people). Kent County's population is 10.4 times larger than Worth County's.
Richest county: Maryland: Montgomery County ($104,882 per capita income) vs Missouri: St. Louis County ($104,775). Montgomery County and St. Louis County have about the same income.
Poorest county: Maryland: Somerset County ($41,421 per capita income) vs Missouri: Douglas County ($40,515). Somerset County and Douglas County have about the same income.
Maryland vs Missouri Taxes
State income tax: Maryland has a top income tax rate of 6.5%, while Missouri has a top income tax rate of 4.7%. Maryland's top rate is 1.8 percentage points higher.
Property tax: Maryland: 0.95% effective rate vs Missouri: 0.79% of home value per year. Maryland's rate is 0.16 percentage points higher.
Sales tax: Maryland: 6% combined state and average local rate vs Missouri: 8.44%. Missouri's combined rate is 2.44 percentage points higher.
Official Websites
Maryland official website · Missouri official website
More Size Comparisons
All Maryland size comparisons · All Missouri 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.