The map above shows Massachusetts and Oklahoma side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Massachusetts vs Oklahoma Geography
Land area: Massachusetts has a land area of 7,801 square miles (20,204 km²), while Oklahoma has 68,597 square miles (177,665 km²). Oklahoma's land area is 8.8 times (779%) larger than Massachusetts'.
Total area: Massachusetts: 10,554 square miles (27,335 km²) vs Oklahoma: 69,899 square miles (181,038 km²), including inland and coastal water. Oklahoma's total area is 6.6 times (562%) larger than Massachusetts'.
Length: Massachusetts is 123 miles (198 km) long from north to south; Oklahoma is 533 miles (857 km). Oklahoma's north-south length is 4.3 times (333%) longer than Massachusetts'.
Width: Massachusetts spans 185 miles (297 km) east to west; Oklahoma spans 490 miles (789 km). Oklahoma's east-west width is 2.6 times (165%) wider than Massachusetts'.
Highest point: Massachusetts's highest point is Mount Greylock at 3,489 feet (1,063 m); Oklahoma's is Black Mesa at 4,980 feet (1,518 m). Black Mesa is 1,491 feet higher than Mount Greylock.
Lowest point: Massachusetts's lowest point is Atlantic Ocean at 0 feet; Oklahoma's is Little River at 289 feet. Massachusetts's lowest point is 289 feet lower.
Massachusetts vs Oklahoma Population and History
Population: Massachusetts has a population of 7,136,171 (2024), while Oklahoma has 4,095,393 (2024). Massachusetts' population is 1.7 times (74%) larger than Oklahoma's.
Population density: Massachusetts: 914.8 people per square mile vs Oklahoma: 59.7. Massachusetts' population density is 15.3 times higher than Oklahoma's.
Biggest city: Massachusetts's biggest city is Boston with 673,458 people; Oklahoma's is Oklahoma City with 712,919. Oklahoma City's population is 1.1 times (6%) larger than Boston's.
Largest metro area: Massachusetts's largest metropolitan area is Boston-Cambridge-Newton, MA-NH metro area (5,025,517 people) vs Oklahoma's Oklahoma City, OK metro area (1,497,821). Boston-Cambridge-Newton, MA-NH metro area's population is 3.4 times (236%) larger than Oklahoma City, OK metro area's.
History: Massachusetts: Admitted to the Union on February 6, 1788, as the 6th state. Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state. In its current form, Massachusetts is the older of the two by 119 years.
Massachusetts vs Oklahoma Economy
GDP: Massachusetts's GDP is $778.5 billion (2024) vs Oklahoma's $263.7 billion. Massachusetts' economic output is 3.0 times (195%) larger than Oklahoma's.
GDP per capita: Massachusetts: $109,095 per person vs Oklahoma: $64,388. Massachusetts' GDP per capita is 1.7 times (69%) higher than Oklahoma's.
Average income: Massachusetts: $93,607 vs Oklahoma: $63,708 average income per person (per capita personal income). Massachusetts' average income is 1.5 times (47%) higher than Oklahoma's.
Massachusetts vs Oklahoma Counties
Number of counties: Massachusetts has 14 counties, while Oklahoma has 77. Oklahoma's county count is 5.5 times (450%) higher than Massachusetts'.
Biggest county by area: Massachusetts's largest county is Worcester County at 1,511 square miles; Oklahoma's is Osage County at 2,247 square miles. Osage County's land area is 1.5 times (49%) larger than Worcester County's.
Smallest county by area: Massachusetts: Nantucket County (46 sq mi) vs Oklahoma: Marshall County (372 sq mi). Marshall County's land area is 8.0 times (704%) larger than Nantucket County's.
Most populous county: Massachusetts: Middlesex County (1,668,956 people) vs Oklahoma: Oklahoma County (816,490 people). Middlesex County's population is 2.0 times (104%) larger than Oklahoma County's.
Least populous county: Massachusetts: Nantucket County (14,670 people) vs Oklahoma: Cimarron County (2,133 people). Nantucket County's population is 6.9 times (588%) larger than Cimarron County's.
Richest county: Massachusetts: Nantucket County ($129,250 per capita income) vs Oklahoma: Washington County ($126,749). Nantucket County and Washington County have about the same income.
Poorest county: Massachusetts: Hampshire County ($65,432 per capita income) vs Oklahoma: Atoka County ($38,709). Hampshire County's income is 1.7 times (69%) richer than Atoka County's.
Massachusetts vs Oklahoma Taxes
State income tax: Massachusetts has a top income tax rate of 9%, while Oklahoma has a top income tax rate of 4.5%. Massachusetts's top rate is 4.5 percentage points higher.
Property tax: Massachusetts: 1% effective rate vs Oklahoma: 0.75% of home value per year. Massachusetts's rate is 0.25 percentage points higher.
Sales tax: Massachusetts: 6.25% combined state and average local rate vs Oklahoma: 9.06%. Oklahoma's combined rate is 2.81 percentage points higher.
Official Websites
Massachusetts official website · Oklahoma official website
More Size Comparisons
All Massachusetts 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.