The map above shows Connecticut and Oklahoma side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Connecticut vs Oklahoma Geography
Land area: Connecticut has a land area of 4,843 square miles (12,542 km²), while Oklahoma has 68,597 square miles (177,665 km²). Oklahoma's land area is 14.2 times larger than Connecticut's.
Total area: Connecticut: 5,544 square miles (14,358 km²) vs Oklahoma: 69,899 square miles (181,038 km²), including inland and coastal water. Oklahoma's total area is 12.6 times larger than Connecticut's.
Length: Connecticut is 73 miles (118 km) long from north to south; Oklahoma is 533 miles (857 km). Oklahoma's north-south length is 7.3 times (630%) longer than Connecticut's.
Width: Connecticut spans 104 miles (167 km) east to west; Oklahoma spans 490 miles (789 km). Oklahoma's east-west width is 4.7 times (371%) wider than Connecticut's.
Highest point: Connecticut's highest point is Mount Frissell (south slope) at 2,376 feet (724 m); Oklahoma's is Black Mesa at 4,980 feet (1,518 m). Black Mesa is 2,604 feet higher than Mount Frissell (south slope).
Lowest point: Connecticut's lowest point is Long Island Sound at 0 feet; Oklahoma's is Little River at 289 feet. Connecticut's lowest point is 289 feet lower.
Connecticut vs Oklahoma Population and History
Population: Connecticut has a population of 3,675,069 (2024), while Oklahoma has 4,095,393 (2024). Oklahoma's population is 1.1 times (11%) larger than Connecticut's.
Population density: Connecticut: 758.9 people per square mile vs Oklahoma: 59.7. Connecticut's population density is 12.7 times higher than Oklahoma's.
Biggest city: Connecticut's biggest city is Bridgeport with 151,599 people; Oklahoma's is Oklahoma City with 712,919. Oklahoma City's population is 4.7 times (370%) 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 Oklahoma's Oklahoma City, OK metro area (1,497,821). Oklahoma City, OK metro area's population is 1.3 times (28%) 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. Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state. In its current form, Connecticut is the older of the two by 119 years.
Connecticut vs Oklahoma Economy
GDP: Connecticut's GDP is $356.8 billion (2024) vs Oklahoma's $263.7 billion. Connecticut's economic output is 1.4 times (35%) larger than Oklahoma's.
GDP per capita: Connecticut: $97,096 per person vs Oklahoma: $64,388. Connecticut's GDP per capita is 1.5 times (51%) higher than Oklahoma's.
Average income: Connecticut: $95,067 vs Oklahoma: $63,708 average income per person (per capita personal income). Connecticut's average income is 1.5 times (49%) higher than Oklahoma's.
Connecticut vs Oklahoma Counties
Number of counties: Connecticut has 9 counties, while Oklahoma has 77. Oklahoma's county count is 8.6 times (756%) higher than Connecticut's.
Biggest county by area: Connecticut's largest county is Capitol Planning Region at 1,027 square miles; Oklahoma's is Osage County at 2,247 square miles. Osage County's land area is 2.2 times (119%) larger than Capitol Planning Region's.
Smallest county by area: Connecticut: Greater Bridgeport Planning Region (140 sq mi) vs Oklahoma: Marshall County (372 sq mi). Marshall County's land area is 2.6 times (165%) larger than Greater Bridgeport Planning Region's.
Most populous county: Connecticut: Capitol Planning Region (991,508 people) vs Oklahoma: Oklahoma County (816,490 people). Capitol Planning Region's population is 1.2 times (21%) larger than Oklahoma County's.
Least populous county: Connecticut: Northeastern Connecticut Planning Region (97,701 people) vs Oklahoma: Cimarron County (2,133 people). Northeastern Connecticut Planning Region's population is 45.8 times larger than Cimarron County's.
Richest county: Connecticut: Western Connecticut Planning Region ($165,513 per capita income) vs Oklahoma: Washington County ($126,749). Western Connecticut Planning Region's income is 1.3 times (31%) richer than Washington County's.
Poorest county: Connecticut: Southeastern Connecticut Planning Region ($64,845 per capita income) vs Oklahoma: Atoka County ($38,709). Southeastern Connecticut Planning Region's income is 1.7 times (68%) richer than Atoka County's.
Connecticut vs Oklahoma Taxes
State income tax: Connecticut has a top income tax rate of 6.99%, while Oklahoma has a top income tax rate of 4.5%. Connecticut's top rate is 2.49 percentage points higher.
Property tax: Connecticut: 1.66% effective rate vs Oklahoma: 0.75% of home value per year. Connecticut's rate is 0.91 percentage points higher.
Sales tax: Connecticut: 6.35% combined state and average local rate vs Oklahoma: 9.06%. Oklahoma's combined rate is 2.71 percentage points higher.
Official Websites
Connecticut official website · Oklahoma official website
More Size Comparisons
All Connecticut size comparisons · All Oklahoma 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.