Ideal Speed Limit Maps - United States

Northeast and Mid-Atlantic USA

Population:  75,360,401

237,158 square miles

318 per square mile

New York, Pennsylvania, New Jersey, Virginia, Massachusetts, Maryland, Connecticut, West Virginia, New Hampshire, Maine, Rhode Island, Delaware, District of Columbia, and Vermont

Southeast USA

Population:  56,975,488

231,289 square miles

246 per square mile

Florida, Georgia, North Carolina, Tennessee, and South Carolina

Midwest USA

Population: 51,672,193

282,265 square miles

183 per square mile

Illinois, Ohio, Michigan, Indiana, Wisconsin, and Kentucky

Southwest USA

Population:  51,705,084

500,685 square miles

103 per square mile

California, Arizona, Nevada, and New Mexico

South Central USA

Population:  50,246,764

522,639 square miles

96 per square mile

Texas, Alabama, Louisiana, Oklahoma, Arkansas, and Mississippi

North Central USA

Population:  21,783,244

508,227 square miles

43 per square mile

Missouri, Minnesota, Iowa, Kansas, Nebraska, South Dakota, and North Dakota