The map above shows Connecticut and Kentucky side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Connecticut vs Kentucky Geography
Land area: Connecticut has a land area of 4,843 square miles (12,542 km²), while Kentucky has 39,485 square miles (102,267 km²). Kentucky's land area is 8.2 times (715%) larger than Connecticut's.
Total area: Connecticut: 5,544 square miles (14,358 km²) vs Kentucky: 40,406 square miles (104,651 km²), including inland and coastal water. Kentucky's total area is 7.3 times (629%) larger than Connecticut's.
Length: Connecticut is 73 miles (118 km) long from north to south; Kentucky is 257 miles (414 km). Kentucky's north-south length is 3.5 times (252%) longer than Connecticut's.
Width: Connecticut spans 104 miles (167 km) east to west; Kentucky spans 418 miles (672 km). Kentucky's east-west width is 4.0 times (302%) wider than Connecticut's.
Highest point: Connecticut's highest point is Mount Frissell (south slope) at 2,376 feet (724 m); Kentucky's is Black Mountain at 4,134 feet (1,260 m). Black Mountain is 1,758 feet higher than Mount Frissell (south slope).
Lowest point: Connecticut's lowest point is Long Island Sound at 0 feet; Kentucky's is Mississippi River at 270 feet. Connecticut's lowest point is 270 feet lower.
Connecticut vs Kentucky Population and History
Population: Connecticut has a population of 3,675,069 (2024), while Kentucky has 4,588,372 (2024). Kentucky's population is 1.2 times (25%) larger than Connecticut's.
Population density: Connecticut: 758.9 people per square mile vs Kentucky: 116.2. Connecticut's population density is 6.5 times (553%) higher than Kentucky's.
Biggest city: Connecticut's biggest city is Bridgeport with 151,599 people; Kentucky's is Louisville with 640,796. Louisville's population is 4.2 times (323%) larger than Bridgeport's.
Largest metro area: Connecticut's largest metropolitan area is Hartford-West Hartford-East Hartford, CT metro area (1,169,048 people) vs Kentucky's Cincinnati, OH-KY-IN metro area (2,302,815). Cincinnati, OH-KY-IN metro area's population is 2.0 times (97%) 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. Kentucky: Admitted to the Union on June 1, 1792, as the 15th state. In its current form, Connecticut is the older of the two by 4 years.
Connecticut vs Kentucky Economy
GDP: Connecticut's GDP is $356.8 billion (2024) vs Kentucky's $295.4 billion. Connecticut's economic output is 1.2 times (21%) larger than Kentucky's.
GDP per capita: Connecticut: $97,096 per person vs Kentucky: $64,375. Connecticut's GDP per capita is 1.5 times (51%) higher than Kentucky's.
Average income: Connecticut: $95,067 vs Kentucky: $58,256 average income per person (per capita personal income). Connecticut's average income is 1.6 times (63%) higher than Kentucky's.
Connecticut vs Kentucky Counties
Number of counties: Connecticut has 9 counties, while Kentucky has 120. Kentucky's county count is 13.3 times higher than Connecticut's.
Biggest county by area: Connecticut's largest county is Capitol Planning Region at 1,027 square miles; Kentucky's is Pike County at 786 square miles. Capitol Planning Region's land area is 1.3 times (31%) larger than Pike County's.
Smallest county by area: Connecticut: Greater Bridgeport Planning Region (140 sq mi) vs Kentucky: Gallatin County (98 sq mi). Greater Bridgeport Planning Region's land area is 1.4 times (43%) larger than Gallatin County's.
Most populous county: Connecticut: Capitol Planning Region (991,508 people) vs Kentucky: Jefferson County (793,881 people). Capitol Planning Region's population is 1.2 times (25%) larger than Jefferson County's.
Least populous county: Connecticut: Northeastern Connecticut Planning Region (97,701 people) vs Kentucky: Robertson County (2,382 people). Northeastern Connecticut Planning Region's population is 41.0 times larger than Robertson County's.
Richest county: Connecticut: Western Connecticut Planning Region ($165,513 per capita income) vs Kentucky: Oldham County ($87,137). Western Connecticut Planning Region's income is 1.9 times (90%) richer than Oldham County's.
Poorest county: Connecticut: Southeastern Connecticut Planning Region ($64,845 per capita income) vs Kentucky: Elliott County ($31,817). Southeastern Connecticut Planning Region's income is 2.0 times (104%) richer than Elliott County's.
Connecticut vs Kentucky Taxes
State income tax: Connecticut has a top income tax rate of 6.99%, while Kentucky has a top income tax rate of 3.5%. Connecticut's top rate is 3.49 percentage points higher.
Property tax: Connecticut: 1.66% effective rate vs Kentucky: 0.71% of home value per year. Connecticut's rate is 0.95 percentage points higher.
Sales tax: Connecticut: 6.35% combined state and average local rate vs Kentucky: 6%. Connecticut's combined rate is 0.35 percentage points higher.
Official Websites
Connecticut official website · Kentucky official website
More Size Comparisons
All Connecticut size comparisons · All Kentucky 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.