Flattest States

Map

Table

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Introduction

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. 

#StatePercentage of Flat LandTotal Area
1Florida52%65,758 mi²
2Illinois50%57,914 mi²
3North Dakota49%70,698 mi²
4Louisiana47%52,378 mi²
5Minnesota47%86,936 mi²
6Delaware44%2,489 mi²
7Kansas44%82,278 mi²
8Nevada43%110,572 mi²
9Texas43%268,596 mi²
10Indiana42%36,420 mi²
11Michigan40%96,714 mi²
12South Dakota40%77,116 mi²
13Arizona38%113,990 mi²
14New Mexico38%121,590 mi²
15South Carolina38%32,020 mi²
16New Jersey37%8,723 mi²
17Oklahoma37%69,899 mi²
18Iowa36%56,273 mi²
19Nebraska36%77,348 mi²
20Ohio36%44,826 mi²
21Arkansas35%53,179 mi²
22California35%163,695 mi²
23Mississippi35%48,432 mi²
24Utah35%84,897 mi²
25Colorado34%104,094 mi²
26North Carolina33%53,819 mi²
27Rhode Island32%1,545 mi²
28Georgia31%59,425 mi²
29Maryland31%12,406 mi²
30Wisconsin31%65,496 mi²
31Missouri30%69,707 mi²
32Idaho29%83,569 mi²
33Wyoming29%97,813 mi²
34Montana28%147,040 mi²
35Oregon28%98,379 mi²
36Alabama26%52,420 mi²
37Maine26%35,380 mi²
38District of Columbia25%68 mi²
39Massachusetts25%10,554 mi²
40New York25%54,555 mi²
41Washington25%71,298 mi²
42Virginia24%42,775 mi²
43Tennessee22%42,144 mi²
44Connecticut21%5,543 mi²
45Kentucky20%40,408 mi²
46New Hampshire20%9,349 mi²
47Pennsylvania20%46,054 mi²
48Vermont20%9,616 mi²
49West Virginia12%24,230 mi²
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Percentage of Flat Land by State

Alabama

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Percentage of Flat Land

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26%

Ranked in the US

#36

Total Area

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52,420 mi²

Ranked in the US

#30

Percentage of Flat Land

Total Area

Arizona

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Percentage of Flat Land

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38%

Ranked in the US

#13

Total Area

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113,990 mi²

Ranked in the US

#6

Percentage of Flat Land

Total Area

Arkansas

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Percentage of Flat Land

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35%

Ranked in the US

#21

Total Area

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53,179 mi²

Ranked in the US

#29

Percentage of Flat Land

Total Area

California

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Percentage of Flat Land

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35%

Ranked in the US

#22

Total Area

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163,695 mi²

Ranked in the US

#3

Percentage of Flat Land

Total Area

Colorado

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Percentage of Flat Land

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34%

Ranked in the US

#25

Total Area

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104,094 mi²

Ranked in the US

#8

Percentage of Flat Land

Total Area

Connecticut

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Percentage of Flat Land

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21%

Ranked in the US

#44

Total Area

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5,543 mi²

Ranked in the US

#48

Percentage of Flat Land

Total Area

Delaware

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Percentage of Flat Land

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44%

Ranked in the US

#6

Total Area

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2,489 mi²

Ranked in the US

#49

Percentage of Flat Land

Total Area

District of Columbia

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Percentage of Flat Land

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25%

Ranked in the US

#38

Total Area

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68 mi²

Ranked in the US

#51

Percentage of Flat Land

Total Area

Florida

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Percentage of Flat Land

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52%

Ranked in the US

#1

Total Area

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65,758 mi²

Ranked in the US

#22

Percentage of Flat Land

Total Area

Georgia

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Percentage of Flat Land

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31%

Ranked in the US

#28

Total Area

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59,425 mi²

Ranked in the US

#24

Percentage of Flat Land

Total Area

Idaho

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Percentage of Flat Land

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29%

Ranked in the US

#32

Total Area

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83,569 mi²

Ranked in the US

#14

Percentage of Flat Land

Total Area

Illinois

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Percentage of Flat Land

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50%

Ranked in the US

#2

Total Area

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57,914 mi²

Ranked in the US

#25

Percentage of Flat Land

Total Area

Indiana

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Percentage of Flat Land

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42%

Ranked in the US

#10

Total Area

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36,420 mi²

Ranked in the US

#38

Percentage of Flat Land

Total Area

Iowa

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Percentage of Flat Land

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36%

Ranked in the US

#18

Total Area

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56,273 mi²

Ranked in the US

#26

Percentage of Flat Land

Total Area

Kansas

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Percentage of Flat Land

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44%

Ranked in the US

#7

Total Area

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82,278 mi²

Ranked in the US

#15

Percentage of Flat Land

Total Area

Kentucky

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Percentage of Flat Land

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20%

Ranked in the US

#45

Total Area

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40,408 mi²

Ranked in the US

#37

Percentage of Flat Land

Total Area

Louisiana

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Percentage of Flat Land

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47%

Ranked in the US

#4

Total Area

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52,378 mi²

Ranked in the US

#31

Percentage of Flat Land

Total Area

Maine

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Percentage of Flat Land

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26%

Ranked in the US

#37

Total Area

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35,380 mi²

Ranked in the US

#39

Percentage of Flat Land

Total Area

Maryland

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Percentage of Flat Land

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31%

Ranked in the US

#29

Total Area

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12,406 mi²

Ranked in the US

#42

Percentage of Flat Land

Total Area

Massachusetts

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Percentage of Flat Land

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25%

Ranked in the US

#39

Total Area

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10,554 mi²

Ranked in the US

#44

Percentage of Flat Land

Total Area

Michigan

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Percentage of Flat Land

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40%

Ranked in the US

#11

Total Area

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96,714 mi²

Ranked in the US

#11

Percentage of Flat Land

Total Area

Minnesota

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Percentage of Flat Land

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47%

Ranked in the US

#5

Total Area

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86,936 mi²

Ranked in the US

#12

Percentage of Flat Land

Total Area

Mississippi

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Percentage of Flat Land

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35%

Ranked in the US

#23

Total Area

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48,432 mi²

Ranked in the US

#32

Percentage of Flat Land

Total Area

Missouri

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Percentage of Flat Land

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30%

Ranked in the US

#31

Total Area

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69,707 mi²

Ranked in the US

#21

Percentage of Flat Land

Total Area

Montana

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Percentage of Flat Land

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28%

Ranked in the US

#34

Total Area

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147,040 mi²

Ranked in the US

#4

Percentage of Flat Land

Total Area

Nebraska

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Percentage of Flat Land

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36%

Ranked in the US

#19

Total Area

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77,348 mi²

Ranked in the US

#16

Percentage of Flat Land

Total Area

Nevada

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Percentage of Flat Land

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43%

Ranked in the US

#8

Total Area

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110,572 mi²

Ranked in the US

#7

Percentage of Flat Land

Total Area

New Hampshire

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Percentage of Flat Land

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20%

Ranked in the US

#46

Total Area

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9,349 mi²

Ranked in the US

#46

Percentage of Flat Land

Total Area

New Jersey

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Percentage of Flat Land

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37%

Ranked in the US

#16

Total Area

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8,723 mi²

Ranked in the US

#47

Percentage of Flat Land

Total Area

New Mexico

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Percentage of Flat Land

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38%

Ranked in the US

#14

Total Area

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121,590 mi²

Ranked in the US

#5

Percentage of Flat Land

Total Area

New York

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Percentage of Flat Land

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25%

Ranked in the US

#40

Total Area

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54,555 mi²

Ranked in the US

#27

Percentage of Flat Land

Total Area

North Carolina

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Percentage of Flat Land

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33%

Ranked in the US

#26

Total Area

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53,819 mi²

Ranked in the US

#28

Percentage of Flat Land

Total Area

North Dakota

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Percentage of Flat Land

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49%

Ranked in the US

#3

Total Area

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70,698 mi²

Ranked in the US

#19

Percentage of Flat Land

Total Area

Ohio

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Percentage of Flat Land

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36%

Ranked in the US

#20

Total Area

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44,826 mi²

Ranked in the US

#34

Percentage of Flat Land

Total Area

Oklahoma

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Percentage of Flat Land

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37%

Ranked in the US

#17

Total Area

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69,899 mi²

Ranked in the US

#20

Percentage of Flat Land

Total Area

Oregon

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Percentage of Flat Land

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28%

Ranked in the US

#35

Total Area

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98,379 mi²

Ranked in the US

#9

Percentage of Flat Land

Total Area

Pennsylvania

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Percentage of Flat Land

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20%

Ranked in the US

#47

Total Area

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46,054 mi²

Ranked in the US

#33

Percentage of Flat Land

Total Area

Rhode Island

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Percentage of Flat Land

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32%

Ranked in the US

#27

Total Area

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1,545 mi²

Ranked in the US

#50

Percentage of Flat Land

Total Area

South Carolina

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Percentage of Flat Land

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38%

Ranked in the US

#15

Total Area

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32,020 mi²

Ranked in the US

#40

Percentage of Flat Land

Total Area

South Dakota

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Percentage of Flat Land

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40%

Ranked in the US

#12

Total Area

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77,116 mi²

Ranked in the US

#17

Percentage of Flat Land

Total Area

Tennessee

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Percentage of Flat Land

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22%

Ranked in the US

#43

Total Area

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42,144 mi²

Ranked in the US

#36

Percentage of Flat Land

Total Area

Texas

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Percentage of Flat Land

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43%

Ranked in the US

#9

Total Area

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268,596 mi²

Ranked in the US

#2

Percentage of Flat Land

Total Area

Utah

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Percentage of Flat Land

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35%

Ranked in the US

#24

Total Area

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84,897 mi²

Ranked in the US

#13

Percentage of Flat Land

Total Area

Vermont

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Percentage of Flat Land

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20%

Ranked in the US

#48

Total Area

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9,616 mi²

Ranked in the US

#45

Percentage of Flat Land

Total Area

Virginia

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Percentage of Flat Land

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24%

Ranked in the US

#42

Total Area

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42,775 mi²

Ranked in the US

#35

Percentage of Flat Land

Total Area

Washington

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Percentage of Flat Land

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25%

Ranked in the US

#41

Total Area

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71,298 mi²

Ranked in the US

#18

Percentage of Flat Land

Total Area

West Virginia

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Percentage of Flat Land

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12%

Ranked in the US

#49

Total Area

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24,230 mi²

Ranked in the US

#41

Percentage of Flat Land

Total Area

Wisconsin

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Percentage of Flat Land

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31%

Ranked in the US

#30

Total Area

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65,496 mi²

Ranked in the US

#23

Percentage of Flat Land

Total Area

Wyoming

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Percentage of Flat Land

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29%

Ranked in the US

#33

Total Area

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97,813 mi²

Ranked in the US

#10

Percentage of Flat Land

Total Area

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