Flattest States

The U.S. is a vast landmass with many different geographical features. From tall mountains in Colorado to flat grassy plains in North Dakota, lush green forests in Oregon to dry, sandy, and arid deserts in Nevada, from Alaska’s glaciers to Hawaii’s volcanos, the 50 states have it all. Additionally, the difference between the highest point and the lowest point is significantly wide, going from 20,237 feet above sea level in Alaska’s Mount McKinley to 282 feet below sea level in California’s Death Valley basin. When discussing flatness in a geographical context, one tends to look at plains and grassy steppes as the ideal example, often citing Kansas as an extremely flat state. However, this is not entirely accurate, as plains, steppes, and farmland have all kinds of bumps, raised areas, and uneven ground to be called consistently flat. 

The flatness of land is determined by a process called geomorphometric analysis, which measures the shape of the surface of the earth. It works by looking at the horizon and measuring the rise of the land in comparison to the sea level. 

If you want to learn more about the flattest states, be sure to check the data in the charts. 

Flatness Estimate by State

Alabama

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26%

#36 in the US

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52,420

#30 in the US

Arizona

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38%

#13 in the US

TOTAL AREAhelp

113,990

#6 in the US

Arkansas

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35%

#21 in the US

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53,179

#29 in the US

California

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35%

#22 in the US

TOTAL AREAhelp

163,695

#3 in the US

Colorado

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34%

#25 in the US

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104,094

#8 in the US

Connecticut

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21%

#44 in the US

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5,543

#48 in the US

Delaware

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44%

#6 in the US

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2,489

#49 in the US

District of Columbia

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25%

#38 in the US

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68

#51 in the US

Florida

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52%

#1 in the US

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65,758

#22 in the US

Georgia

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31%

#28 in the US

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59,425

#24 in the US

Idaho

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29%

#32 in the US

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83,569

#14 in the US

Illinois

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50%

#2 in the US

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57,914

#25 in the US

Indiana

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42%

#10 in the US

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36,420

#38 in the US

Iowa

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36%

#18 in the US

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56,273

#26 in the US

Kansas

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44%

#7 in the US

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82,278

#15 in the US

Kentucky

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20%

#45 in the US

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40,408

#37 in the US

Louisiana

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47%

#4 in the US

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52,378

#31 in the US

Maine

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26%

#37 in the US

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35,380

#39 in the US

Maryland

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31%

#29 in the US

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12,406

#42 in the US

Massachusetts

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25%

#39 in the US

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10,554

#44 in the US

Michigan

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40%

#11 in the US

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96,714

#11 in the US

Minnesota

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47%

#5 in the US

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86,936

#12 in the US

Mississippi

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35%

#23 in the US

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48,432

#32 in the US

Missouri

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30%

#31 in the US

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69,707

#21 in the US

Montana

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28%

#34 in the US

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147,040

#4 in the US

Nebraska

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36%

#19 in the US

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77,348

#16 in the US

Nevada

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43%

#8 in the US

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110,572

#7 in the US

New Hampshire

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20%

#46 in the US

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9,349

#46 in the US

New Jersey

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37%

#16 in the US

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8,723

#47 in the US

New Mexico

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38%

#14 in the US

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121,590

#5 in the US

New York

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25%

#40 in the US

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54,555

#27 in the US

North Carolina

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33%

#26 in the US

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53,819

#28 in the US

North Dakota

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49%

#3 in the US

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70,698

#19 in the US

Ohio

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36%

#20 in the US

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44,826

#34 in the US

Oklahoma

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37%

#17 in the US

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69,899

#20 in the US

Oregon

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28%

#35 in the US

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98,379

#9 in the US

Pennsylvania

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20%

#47 in the US

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46,054

#33 in the US

Rhode Island

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32%

#27 in the US

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1,545

#50 in the US

South Carolina

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38%

#15 in the US

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32,020

#40 in the US

South Dakota

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40%

#12 in the US

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77,116

#17 in the US

Tennessee

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22%

#43 in the US

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42,144

#36 in the US

Texas

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43%

#9 in the US

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268,596

#2 in the US

Utah

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35%

#24 in the US

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84,897

#13 in the US

Vermont

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20%

#48 in the US

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9,616

#45 in the US

Virginia

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24%

#42 in the US

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42,775

#35 in the US

Washington

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25%

#41 in the US

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71,298

#18 in the US

West Virginia

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12%

#49 in the US

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24,230

#41 in the US

Wisconsin

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31%

#30 in the US

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65,496

#23 in the US

Wyoming

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29%

#33 in the US

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97,813

#10 in the US