The map above shows Oklahoma and Wisconsin side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Oklahoma vs Wisconsin Geography
Land area: Oklahoma has a land area of 68,597 square miles (177,665 km²), while Wisconsin has 54,168 square miles (140,294 km²). Oklahoma's land area is 1.3 times (27%) larger than Wisconsin's.
Total area: Oklahoma: 69,899 square miles (181,038 km²) vs Wisconsin: 65,497 square miles (169,636 km²), including inland and coastal water. Oklahoma's total area is 1.1 times (7%) larger than Wisconsin's.
Length: Oklahoma is 533 miles (857 km) long from north to south; Wisconsin is 368 miles (593 km). Oklahoma's north-south length is 1.4 times (45%) longer than Wisconsin's.
Width: Oklahoma spans 490 miles (789 km) east to west; Wisconsin spans 323 miles (521 km). Oklahoma's east-west width is 1.5 times (52%) wider than Wisconsin's.
Highest point: Oklahoma's highest point is Black Mesa at 4,980 feet (1,518 m); Wisconsin's is Timms Hill at 1,946 feet (593 m). Black Mesa is 3,034 feet higher than Timms Hill.
Lowest point: Oklahoma's lowest point is Little River at 289 feet; Wisconsin's is Lake Michigan at 577 feet. Oklahoma's lowest point is 288 feet lower.
Oklahoma vs Wisconsin Population and History
Population: Oklahoma has a population of 4,095,393 (2024), while Wisconsin has 5,960,975 (2024). Wisconsin's population is 1.5 times (46%) larger than Oklahoma's.
Population density: Oklahoma: 59.7 people per square mile vs Wisconsin: 110.0. Wisconsin's population density is 1.8 times (84%) higher than Oklahoma's.
Biggest city: Oklahoma's biggest city is Oklahoma City with 712,919 people; Wisconsin's is Milwaukee with 563,531. Oklahoma City's population is 1.3 times (27%) larger than Milwaukee's.
Largest metro area: Oklahoma's largest metropolitan area is Oklahoma City, OK metro area (1,497,821 people) vs Wisconsin's Minneapolis-St. Paul-Bloomington, MN-WI metro area (3,757,952). Minneapolis-St. Paul-Bloomington, MN-WI metro area's population is 2.5 times (151%) larger than Oklahoma City, OK metro area's.
History: Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state. Wisconsin: Admitted to the Union on May 29, 1848, as the 30th state. In its current form, Wisconsin is the older of the two by 59 years.
Oklahoma vs Wisconsin Economy
GDP: Oklahoma's GDP is $263.7 billion (2024) vs Wisconsin's $453.3 billion. Wisconsin's economic output is 1.7 times (72%) larger than Oklahoma's.
GDP per capita: Oklahoma: $64,388 per person vs Wisconsin: $76,044. Wisconsin's GDP per capita is 1.2 times (18%) higher than Oklahoma's.
Average income: Oklahoma: $63,708 vs Wisconsin: $67,755 average income per person (per capita personal income). Wisconsin's average income is 1.1 times (6%) higher than Oklahoma's.
Oklahoma vs Wisconsin Counties
Number of counties: Oklahoma has 77 counties, while Wisconsin has 72. Oklahoma's county count is 1.1 times (7%) higher than Wisconsin's.
Biggest county by area: Oklahoma's largest county is Osage County at 2,247 square miles; Wisconsin's is Marathon County at 1,545 square miles. Osage County's land area is 1.5 times (45%) larger than Marathon County's.
Smallest county by area: Oklahoma: Marshall County (372 sq mi) vs Wisconsin: Pepin County (232 sq mi). Marshall County's land area is 1.6 times (60%) larger than Pepin County's.
Most populous county: Oklahoma: Oklahoma County (816,490 people) vs Wisconsin: Milwaukee County (924,740 people). Milwaukee County's population is 1.1 times (13%) larger than Oklahoma County's.
Least populous county: Oklahoma: Cimarron County (2,133 people) vs Wisconsin: Menominee County (4,286 people). Menominee County's population is 2.0 times (101%) larger than Cimarron County's.
Richest county: Oklahoma: Washington County ($126,749 per capita income) vs Wisconsin: Ozaukee County ($109,947). Washington County's income is 1.2 times (15%) richer than Ozaukee County's.
Poorest county: Oklahoma: Atoka County ($38,709 per capita income) vs Wisconsin: Menominee County ($43,696). Menominee County's income is 1.1 times (13%) richer than Atoka County's.
Oklahoma vs Wisconsin Taxes
State income tax: Oklahoma has a top income tax rate of 4.5%, while Wisconsin has a top income tax rate of 7.65%. Wisconsin's top rate is 3.15 percentage points higher.
Property tax: Oklahoma: 0.75% effective rate vs Wisconsin: 1.25% of home value per year. Wisconsin's rate is 0.5 percentage points higher.
Sales tax: Oklahoma: 9.06% combined state and average local rate vs Wisconsin: 5.72%. Oklahoma's combined rate is 3.34 percentage points higher.
Official Websites
Oklahoma official website · Wisconsin official website
More Size Comparisons
All Oklahoma size comparisons · All Wisconsin 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.