|—————-+——-+——+——-| | State | High | Low | Diff | |—————-+——-+——+——-| | Florida | 345 | 0 | 345 | | Delaware | 450 | 0 | 450 | | Louisiana | 535 | -7 | 542 | | Mississippi | 807 | 0 | 807 | | Rhode Island | 814 | 0 | 814 | | Indiana | 1257 | 322 | 935 | | Illinois | 1237 | 279 | 958 | | Ohio | 1549 | 456 | 1093 | | Iowa | 1670 | 479 | 1191 | | Wisconsin | 1952 | 581 | 1371 | | Michigan | 1982 | 571 | 1411 | | Missouri | 1772 | 230 | 1542 | | Minnesota | 2303 | 600 | 1703 | | New Jersey | 1804 | 0 | 1804 | | Connecticut | 2382 | 0 | 2382 | | Alabama | 2405 | 0 | 2405 | | Arkansas | 2756 | 56 | 2700 | | North Dakota | 3507 | 751 | 2756 | | Pennsylvania | 3215 | 0 | 3215 | | Kansas | 4042 | 679 | 3363 | | Maryland | 3363 | 0 | 3363 | | Massachusetts | 3491 | 0 | 3491 | | South Carolina | 3563 | 0 | 3563 | | Kentucky | 4144 | 256 | 3888 | | Vermont | 4396 | 95 | 4301 | | Nebraska | 5427 | 840 | 4587 | | West Virginia | 4865 | 240 | 4625 | | Oklahoma | 4977 | 289 | 4688 | | Georgia | 4787 | 0 | 4787 | | Maine | 5269 | 0 | 5269 | | New York | 5348 | 0 | 5348 | | Virginia | 5732 | 0 | 5732 | | South Dakota | 7247 | 968 | 6279 | | New Hampshire | 6293 | 0 | 6293 | | Tennessee | 6647 | 177 | 6470 | | North Carolina | 6690 | 0 | 6690 | | Texas | 8753 | 0 | 8753 | | New Mexico | 13169 | 2844 | 10325 | | Wyoming | 13812 | 3100 | 10712 | | Montana | 12808 | 1801 | 11007 | | Colorado | 14439 | 3314 | 11125 | | Oregon | 11247 | 0 | 11247 | | Utah | 13527 | 2001 | 11526 | | Idaho | 12667 | 712 | 11955 | | Arizona | 12631 | 69 | 12562 | | Nevada | 13146 | 479 | 12667 | | Hawaii | 13806 | 0 | 13806 | | Washington | 14419 | 0 | 14419 | | California | 14505 | -282 | 14787 | | Alaska | 20335 | 0 | 20335 | |—————-+——-+——+——-| By the measure used in the table above, Florida is about 10 times flatter than Kansas.The centroid of the continental US is in Kansas, and if you look at the center of the map above, you’ll see that there’s an elevation change across Kansas.If I remember correctly, the source I saw said that Kansas was something like 9th, though in the table above it’s 20th..Maybe that source measured flatness differently..If you had a grid of measurements throughout each state, you could compute something like a Sobolev norm that accounts for gradients.. More details