The map above shows Delaware and Maryland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Delaware vs Maryland Geography
Land area: Delaware has a land area of 1,949 square miles (5,047 km²), while Maryland has 9,711 square miles (25,151 km²). Maryland's land area is 5.0 times (398%) larger than Delaware's.
Total area: Delaware: 2,489 square miles (6,446 km²) vs Maryland: 12,406 square miles (32,131 km²), including inland and coastal water. Maryland's total area is 5.0 times (398%) larger than Delaware's.
Length: Delaware is 98 miles (158 km) long from north to south; Maryland is 231 miles (371 km). Maryland's north-south length is 2.4 times (136%) longer than Delaware's.
Width: Delaware spans 96 miles (155 km) east to west; Maryland spans 243 miles (391 km). Maryland's east-west width is 2.5 times (153%) wider than Delaware's.
Highest point: Delaware's highest point is Ebright Azimuth at 450 feet (137 m); Maryland's is Hoye-Crest at 3,362 feet (1,025 m). Hoye-Crest is 2,912 feet higher than Ebright Azimuth.
Lowest point: Delaware's lowest point is Atlantic Ocean at 0 feet; Maryland's is Atlantic Ocean at 0 feet. Both lowest points are at or near sea level.
Delaware vs Maryland Population and History
Population: Delaware has a population of 1,051,917 (2024), while Maryland has 6,263,220 (2024). Maryland's population is 6.0 times (495%) larger than Delaware's.
Population density: Delaware: 539.9 people per square mile vs Maryland: 645.0. Maryland's population density is 1.2 times (19%) higher than Delaware's.
Biggest city: Delaware's biggest city is Wilmington with 73,176 people; Maryland's is Baltimore with 568,271. Baltimore's population is 7.8 times (677%) larger than Wilmington's.
Largest metro area: Delaware's largest metropolitan area is Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422 people) vs Maryland's Washington-Arlington-Alexandria, DC-VA-MD-WV metro area (6,436,489). Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area and Washington-Arlington-Alexandria, DC-VA-MD-WV metro area have about the same population.
History: Delaware: Admitted to the Union on December 7, 1787, as the 1st state. Maryland: Admitted to the Union on April 28, 1788, as the 7th state. In its current form, Delaware is the older of the two by 1 years.
Delaware vs Maryland Economy
GDP: Delaware's GDP is $111.0 billion (2024) vs Maryland's $546.0 billion. Maryland's economic output is 4.9 times (392%) larger than Delaware's.
GDP per capita: Delaware: $105,495 per person vs Maryland: $87,180. Delaware's GDP per capita is 1.2 times (21%) higher than Maryland's.
Average income: Delaware: $68,061 vs Maryland: $79,259 average income per person (per capita personal income). Maryland's average income is 1.2 times (16%) higher than Delaware's.
Delaware vs Maryland Counties
Number of counties: Delaware has 3 counties, while Maryland has 24. Maryland's county count is 8.0 times (700%) higher than Delaware's.
Biggest county by area: Delaware's largest county is Sussex County at 936 square miles; Maryland's is Frederick County at 661 square miles. Sussex County's land area is 1.4 times (42%) larger than Frederick County's.
Smallest county by area: Delaware: New Castle County (426 sq mi) vs Maryland: Baltimore city (81 sq mi). New Castle County's land area is 5.3 times (427%) larger than Baltimore city's.
Most populous county: Delaware: New Castle County (588,093 people) vs Maryland: Montgomery County (1,082,273 people). Montgomery County's population is 1.8 times (84%) larger than New Castle County's.
Least populous county: Delaware: Kent County (192,690 people) vs Maryland: Kent County (19,557 people). Kent County's population is 9.9 times (885%) larger than Kent County's.
Richest county: Delaware: Sussex County ($73,647 per capita income) vs Maryland: Montgomery County ($104,882). Montgomery County's income is 1.4 times (42%) richer than Sussex County's.
Poorest county: Delaware: Kent County ($55,474 per capita income) vs Maryland: Somerset County ($41,421). Kent County's income is 1.3 times (34%) richer than Somerset County's.
Delaware vs Maryland Taxes
State income tax: Delaware has a top income tax rate of 6.6%, while Maryland has a top income tax rate of 6.5%. Delaware's top rate is 0.1 percentage points higher.
Property tax: Delaware: 0.47% effective rate vs Maryland: 0.95% of home value per year. Maryland's rate is 0.48 percentage points higher.
Sales tax: Delaware: 0% combined state and average local rate vs Maryland: 6%. Maryland's combined rate is 6 percentage points higher.
Official Websites
Delaware official website · Maryland official website
More Size Comparisons
All Delaware size comparisons · All Maryland 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.