The map above shows Connecticut and Delaware side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Connecticut vs Delaware Geography
Land area: Connecticut has a land area of 4,843 square miles (12,542 km²), while Delaware has 1,949 square miles (5,047 km²). Connecticut's land area is 2.5 times (149%) larger than Delaware's.
Total area: Connecticut: 5,544 square miles (14,358 km²) vs Delaware: 2,489 square miles (6,446 km²), including inland and coastal water. Connecticut's total area is 2.2 times (123%) larger than Delaware's.
Length: Connecticut is 73 miles (118 km) long from north to south; Delaware is 98 miles (158 km). Delaware's north-south length is 1.3 times (34%) longer than Connecticut's.
Width: Connecticut spans 104 miles (167 km) east to west; Delaware spans 96 miles (155 km). Connecticut's east-west width is 1.1 times (8%) wider than Delaware's.
Highest point: Connecticut's highest point is Mount Frissell (south slope) at 2,376 feet (724 m); Delaware's is Ebright Azimuth at 450 feet (137 m). Mount Frissell (south slope) is 1,926 feet higher than Ebright Azimuth.
Lowest point: Connecticut's lowest point is Long Island Sound at 0 feet; Delaware's is Atlantic Ocean at 0 feet. Both lowest points are at or near sea level.
Connecticut vs Delaware Population and History
Population: Connecticut has a population of 3,675,069 (2024), while Delaware has 1,051,917 (2024). Connecticut's population is 3.5 times (249%) larger than Delaware's.
Population density: Connecticut: 758.9 people per square mile vs Delaware: 539.9. Connecticut's population density is 1.4 times (41%) higher than Delaware's.
Biggest city: Connecticut's biggest city is Bridgeport with 151,599 people; Delaware's is Wilmington with 73,176. Bridgeport's population is 2.1 times (107%) larger than Wilmington's.
Largest metro area: Connecticut's largest metropolitan area is Hartford-West Hartford-East Hartford, CT metro area (1,169,048 people) vs Delaware's Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area (6,330,422). Philadelphia-Camden-Wilmington, PA-NJ-DE-MD metro area's population is 5.4 times (442%) larger than Hartford-West Hartford-East Hartford, CT metro area's.
History: Connecticut: Admitted to the Union on January 9, 1788, as the 5th state. Delaware: Admitted to the Union on December 7, 1787, as the 1st state. In its current form, Delaware is the older of the two by 1 years.
Connecticut vs Delaware Economy
GDP: Connecticut's GDP is $356.8 billion (2024) vs Delaware's $111.0 billion. Connecticut's economic output is 3.2 times (221%) larger than Delaware's.
GDP per capita: Connecticut: $97,096 per person vs Delaware: $105,495. Delaware's GDP per capita is 1.1 times (9%) higher than Connecticut's.
Average income: Connecticut: $95,067 vs Delaware: $68,061 average income per person (per capita personal income). Connecticut's average income is 1.4 times (40%) higher than Delaware's.
Connecticut vs Delaware Counties
Number of counties: Connecticut has 9 counties, while Delaware has 3. Connecticut's county count is 3.0 times (200%) higher than Delaware's.
Biggest county by area: Connecticut's largest county is Capitol Planning Region at 1,027 square miles; Delaware's is Sussex County at 936 square miles. Capitol Planning Region's land area is 1.1 times (10%) larger than Sussex County's.
Smallest county by area: Connecticut: Greater Bridgeport Planning Region (140 sq mi) vs Delaware: New Castle County (426 sq mi). New Castle County's land area is 3.0 times (204%) larger than Greater Bridgeport Planning Region's.
Most populous county: Connecticut: Capitol Planning Region (991,508 people) vs Delaware: New Castle County (588,093 people). Capitol Planning Region's population is 1.7 times (69%) larger than New Castle County's.
Least populous county: Connecticut: Northeastern Connecticut Planning Region (97,701 people) vs Delaware: Kent County (192,690 people). Kent County's population is 2.0 times (97%) larger than Northeastern Connecticut Planning Region's.
Richest county: Connecticut: Western Connecticut Planning Region ($165,513 per capita income) vs Delaware: Sussex County ($73,647). Western Connecticut Planning Region's income is 2.2 times (125%) richer than Sussex County's.
Poorest county: Connecticut: Southeastern Connecticut Planning Region ($64,845 per capita income) vs Delaware: Kent County ($55,474). Southeastern Connecticut Planning Region's income is 1.2 times (17%) richer than Kent County's.
Connecticut vs Delaware Taxes
State income tax: Connecticut has a top income tax rate of 6.99%, while Delaware has a top income tax rate of 6.6%. Connecticut's top rate is 0.39 percentage points higher.
Property tax: Connecticut: 1.66% effective rate vs Delaware: 0.47% of home value per year. Connecticut's rate is 1.19 percentage points higher.
Sales tax: Connecticut: 6.35% combined state and average local rate vs Delaware: 0%. Connecticut's combined rate is 6.35 percentage points higher.
Official Websites
Connecticut official website · Delaware official website
More Size Comparisons
All Connecticut size comparisons · All Delaware 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.