The map above shows Connecticut and New Hampshire side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Connecticut vs New Hampshire Geography
Land area: Connecticut has a land area of 4,843 square miles (12,542 km²), while New Hampshire has 8,954 square miles (23,190 km²). New Hampshire's land area is 1.8 times (85%) larger than Connecticut's.
Total area: Connecticut: 5,544 square miles (14,358 km²) vs New Hampshire: 9,350 square miles (24,216 km²), including inland and coastal water. New Hampshire's total area is 1.7 times (69%) larger than Connecticut's.
Length: Connecticut is 73 miles (118 km) long from north to south; New Hampshire is 180 miles (290 km). New Hampshire's north-south length is 2.5 times (147%) longer than Connecticut's.
Width: Connecticut spans 104 miles (167 km) east to west; New Hampshire spans 95 miles (152 km). Connecticut's east-west width is 1.1 times (9%) wider than New Hampshire's.
Highest point: Connecticut's highest point is Mount Frissell (south slope) at 2,376 feet (724 m); New Hampshire's is Mount Washington at 6,277 feet (1,913 m). Mount Washington is 3,901 feet higher than Mount Frissell (south slope).
Lowest point: Connecticut's lowest point is Long Island Sound at 0 feet; New Hampshire's is Atlantic Ocean at 0 feet. Both lowest points are at or near sea level.
Connecticut vs New Hampshire Population and History
Population: Connecticut has a population of 3,675,069 (2024), while New Hampshire has 1,409,032 (2024). Connecticut's population is 2.6 times (161%) larger than New Hampshire's.
Population density: Connecticut: 758.9 people per square mile vs New Hampshire: 157.4. Connecticut's population density is 4.8 times (382%) higher than New Hampshire's.
Biggest city: Connecticut's biggest city is Bridgeport with 151,599 people; New Hampshire's is Manchester with 116,386. Bridgeport's population is 1.3 times (30%) larger than Manchester's.
Largest metro area: Connecticut's largest metropolitan area is Hartford-West Hartford-East Hartford, CT metro area (1,169,048 people) vs New Hampshire's Boston-Cambridge-Newton, MA-NH metro area (5,025,517). Boston-Cambridge-Newton, MA-NH metro area's population is 4.3 times (330%) 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. New Hampshire: Admitted to the Union on June 21, 1788, as the 9th state.
Connecticut vs New Hampshire Economy
GDP: Connecticut's GDP is $356.8 billion (2024) vs New Hampshire's $119.3 billion. Connecticut's economic output is 3.0 times (199%) larger than New Hampshire's.
GDP per capita: Connecticut: $97,096 per person vs New Hampshire: $84,694. Connecticut's GDP per capita is 1.1 times (15%) higher than New Hampshire's.
Average income: Connecticut: $95,067 vs New Hampshire: $83,192 average income per person (per capita personal income). Connecticut's average income is 1.1 times (14%) higher than New Hampshire's.
Connecticut vs New Hampshire Counties
Number of counties: Connecticut has 9 counties, while New Hampshire has 10. New Hampshire's county count is 1.1 times (11%) higher than Connecticut's.
Biggest county by area: Connecticut's largest county is Capitol Planning Region at 1,027 square miles; New Hampshire's is Coos County at 1,795 square miles. Coos County's land area is 1.7 times (75%) larger than Capitol Planning Region's.
Smallest county by area: Connecticut: Greater Bridgeport Planning Region (140 sq mi) vs New Hampshire: Strafford County (368 sq mi). Strafford County's land area is 2.6 times (162%) larger than Greater Bridgeport Planning Region's.
Most populous county: Connecticut: Capitol Planning Region (991,508 people) vs New Hampshire: Hillsborough County (430,462 people). Capitol Planning Region's population is 2.3 times (130%) larger than Hillsborough County's.
Least populous county: Connecticut: Northeastern Connecticut Planning Region (97,701 people) vs New Hampshire: Coos County (31,094 people). Northeastern Connecticut Planning Region's population is 3.1 times (214%) larger than Coos County's.
Richest county: Connecticut: Western Connecticut Planning Region ($165,513 per capita income) vs New Hampshire: Rockingham County ($100,216). Western Connecticut Planning Region's income is 1.7 times (65%) richer than Rockingham County's.
Poorest county: Connecticut: Southeastern Connecticut Planning Region ($64,845 per capita income) vs New Hampshire: Coos County ($60,657). Southeastern Connecticut Planning Region's income is 1.1 times (7%) richer than Coos County's.
Connecticut vs New Hampshire Taxes
State income tax: Connecticut has a top income tax rate of 6.99%, while New Hampshire has no state income tax. Connecticut's top rate is 6.99 percentage points higher.
Property tax: Connecticut: 1.66% effective rate vs New Hampshire: 1.46% of home value per year. Connecticut's rate is 0.2 percentage points higher.
Sales tax: Connecticut: 6.35% combined state and average local rate vs New Hampshire: 0%. Connecticut's combined rate is 6.35 percentage points higher.
Official Websites
Connecticut official website · New Hampshire official website
More Size Comparisons
All Connecticut size comparisons · All New Hampshire 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.