Counties with the highest water share
The percentage of each county equivalent’s published square-mile total that is water. A high percentage reflects water assigned to the statistical geography, not necessarily lakes entirely enclosed by its land boundary.
Ranks 501–600
3,222 county equivalents · page 6 of 33
What this part of the ranking shows
This page runs from Placer County, California at 6.313% water to Warren County, Mississippi at 4.853% water. The 100 entries represent 34 state-level jurisdictions. Kentucky has the most entries on this page (10, tied for the lead).
Rank numbers continue across pages and describe the full selected ranking. They are not state ranks. Start at rank 1 for the leading entries, or open a county profile for its state rank and median comparisons.
| Rank | County / equivalent | State | Land mi² | Total mi² | Water share |
|---|---|---|---|---|---|
| 501 | Placer County | California | 1,407.4 | 1,502.2 | 6.3% |
| 502 | Calloway County | Kentucky | 384.9 | 410.7 | 6.3% |
| 503 | Mercer County | North Dakota | 1,042.8 | 1,112.6 | 6.3% |
| 504 | Henderson County | Kentucky | 436.4 | 465.6 | 6.3% |
| 505 | Livingston Parish | Louisiana | 648.1 | 691.4 | 6.3% |
| 506 | Tangipahoa Parish | Louisiana | 791.2 | 843.9 | 6.3% |
| 507 | Carroll County | Kentucky | 128.7 | 137.3 | 6.2% |
| 508 | Rhea County | Tennessee | 315.5 | 336.5 | 6.2% |
| 509 | Passaic County | New Jersey | 186.1 | 198.5 | 6.2% |
| 510 | Chisago County | Minnesota | 414.9 | 442.4 | 6.2% |
| 511 | Carroll County | New Hampshire | 931.9 | 993.5 | 6.2% |
| 512 | Elbert County | Georgia | 351.1 | 374.2 | 6.2% |
| 513 | Lauderdale County | Tennessee | 471.9 | 502.9 | 6.2% |
| 514 | New Kent County | Virginia | 210 | 223.8 | 6.1% |
| 515 | Caddo Parish | Louisiana | 879.5 | 937 | 6.1% |
| 516 | Hancock County | West Virginia | 82.6 | 88 | 6.1% |
| 517 | Adams County | Wisconsin | 645.6 | 687.5 | 6.1% |
| 518 | Grenada County | Mississippi | 422.1 | 449.4 | 6.1% |
| 519 | Pulaski County | Arkansas | 758.4 | 807.4 | 6.1% |
| 520 | Gallatin County | Kentucky | 98.3 | 104.6 | 6.1% |
| 521 | Modoc County | California | 3,948.2 | 4,203.3 | 6.1% |
| 522 | Vance County | North Carolina | 252.4 | 268.7 | 6.1% |
| 523 | Clay County | Florida | 604.6 | 643.5 | 6.1% |
| 524 | Fond du Lac County | Wisconsin | 719.6 | 765.8 | 6% |
| 525 | Providence County | Rhode Island | 409.5 | 435.7 | 6% |
| 526 | Mountrail County | North Dakota | 1,825.2 | 1,941.5 | 6% |
| 527 | Tensas Parish | Louisiana | 603.3 | 641.7 | 6% |
| 528 | Dauphin County | Pennsylvania | 524.9 | 558.1 | 6% |
| 529 | Sully County | South Dakota | 1,006.7 | 1,070.2 | 5.9% |
| 530 | Pierce County | North Dakota | 1,018.3 | 1,082.5 | 5.9% |
| 531 | St. James Parish | Louisiana | 237.9 | 252.8 | 5.9% |
| 532 | Pope County | Minnesota | 674.6 | 716.9 | 5.9% |
| 533 | Pointe Coupee Parish | Louisiana | 555.5 | 590.4 | 5.9% |
| 534 | La Crosse County | Wisconsin | 451.8 | 480.1 | 5.9% |
| 535 | Androscoggin County | Maine | 468 | 497.1 | 5.9% |
| 536 | Elmore County | Alabama | 618.5 | 657 | 5.9% |
| 537 | Carver County | Minnesota | 353.9 | 375.9 | 5.9% |
| 538 | Prince George County | Virginia | 265.3 | 281.8 | 5.9% |
| 539 | Dewey County | South Dakota | 2,302.4 | 2,445.3 | 5.8% |
| 540 | Meade County | Kentucky | 305.5 | 324.4 | 5.8% |
| 541 | Refugio County | Texas | 770.5 | 818.2 | 5.8% |
| 542 | Hamilton County | Tennessee | 542.2 | 575.7 | 5.8% |
| 543 | Quitman County | Georgia | 151.2 | 160.6 | 5.8% |
| 544 | Clinton County | Illinois | 473.9 | 503.1 | 5.8% |
| 545 | Dickinson County | Iowa | 380.5 | 404 | 5.8% |
| 546 | Hamlin County | South Dakota | 507.1 | 538.1 | 5.8% |
| 547 | Day County | South Dakota | 1,028.5 | 1,091.1 | 5.7% |
| 548 | Kidder County | North Dakota | 1,351.1 | 1,432.8 | 5.7% |
| 549 | Little River County | Arkansas | 531.3 | 563.3 | 5.7% |
| 550 | LaSalle Parish | Louisiana | 624.9 | 662.6 | 5.7% |
| 551 | Columbia County | Georgia | 290.2 | 307.7 | 5.7% |
| 552 | Meeker County | Minnesota | 608 | 644.6 | 5.7% |
| 553 | Philadelphia County | Pennsylvania | 134.3 | 142.4 | 5.7% |
| 554 | Bertie County | North Carolina | 699.2 | 741.3 | 5.7% |
| 555 | Sequoyah County | Oklahoma | 673.6 | 714.1 | 5.7% |
| 556 | Hancock County | Kentucky | 187.7 | 198.9 | 5.7% |
| 557 | Zapata County | Texas | 998.4 | 1,058 | 5.6% |
| 558 | Yalobusha County | Mississippi | 467.2 | 495 | 5.6% |
| 559 | West Baton Rouge Parish | Louisiana | 192.3 | 203.8 | 5.6% |
| 560 | Union County | Kentucky | 342.9 | 363.2 | 5.6% |
| 561 | Baxter County | Arkansas | 553.9 | 586.7 | 5.6% |
| 562 | Anderson County | South Carolina | 713.9 | 755.8 | 5.5% |
| 563 | Bergen County | New Jersey | 232.8 | 246.5 | 5.5% |
| 564 | Lake County | California | 1,255.1 | 1,328.1 | 5.5% |
| 565 | Big Stone County | Minnesota | 499.1 | 528.1 | 5.5% |
| 566 | Iberville Parish | Louisiana | 617.3 | 653 | 5.5% |
| 567 | Kootenai County | Idaho | 1,237.8 | 1,309 | 5.4% |
| 568 | Marshall County | South Dakota | 838.1 | 886.2 | 5.4% |
| 569 | Williamson County | Illinois | 420.2 | 444.3 | 5.4% |
| 570 | St. Charles County | Missouri | 560.3 | 592.4 | 5.4% |
| 571 | Anoka County | Minnesota | 422 | 446.1 | 5.4% |
| 572 | Wayne County | Kentucky | 458 | 484.2 | 5.4% |
| 573 | West Feliciana Parish | Louisiana | 403.2 | 426 | 5.3% |
| 574 | Le Sueur County | Minnesota | 448.8 | 473.9 | 5.3% |
| 575 | Henry County | Tennessee | 561.9 | 593.4 | 5.3% |
| 576 | Waukesha County | Wisconsin | 549.7 | 580.5 | 5.3% |
| 577 | Rich County | Utah | 1,028.8 | 1,086.3 | 5.3% |
| 578 | Rock Island County | Illinois | 427.5 | 451.3 | 5.3% |
| 579 | Trimble County | Kentucky | 147.8 | 156 | 5.3% |
| 580 | Pittsburg County | Oklahoma | 1,305.5 | 1,377.9 | 5.3% |
| 581 | Teton County | Wyoming | 3,996.8 | 4,217.3 | 5.2% |
| 582 | Franklin County | Illinois | 408.9 | 431.5 | 5.2% |
| 583 | Adams County | Mississippi | 462.3 | 487.5 | 5.2% |
| 584 | Coahoma County | Mississippi | 553.1 | 583 | 5.1% |
| 585 | Addison County | Vermont | 766.3 | 807.8 | 5.1% |
| 586 | Phillips County | Arkansas | 690.4 | 727.4 | 5.1% |
| 587 | Napa County | California | 752 | 792.3 | 5.1% |
| 588 | Washington County | Florida | 584.7 | 616 | 5.1% |
| 589 | Campbell County | Kentucky | 151.3 | 159.4 | 5.1% |
| 590 | Rogers County | Oklahoma | 675.7 | 711.6 | 5% |
| 591 | St. Lawrence County | New York | 2,679.5 | 2,821.2 | 5% |
| 592 | Collin County | Texas | 841.6 | 885.9 | 5% |
| 593 | Hamilton County | New York | 1,717.4 | 1,807.8 | 5% |
| 594 | Walworth County | South Dakota | 707.5 | 744.6 | 5% |
| 595 | Snohomish County | Washington | 2,086.5 | 2,195.8 | 5% |
| 596 | Crittenden County | Arkansas | 611.8 | 643.8 | 5% |
| 597 | Geary County | Kansas | 384.7 | 404.6 | 4.9% |
| 598 | Colbert County | Alabama | 593 | 623.5 | 4.9% |
| 599 | Wagoner County | Oklahoma | 561.9 | 590.8 | 4.9% |
| 600 | Warren County | Mississippi | 588.5 | 618.6 | 4.9% |
Read the differences behind ranks 501–600
The median water share among these 100 entries is 5.69 %. The first and last entries span 1.46 percentage points. This median describes the entries on this page, not the full national dataset. Pagination is a browsing boundary, not a distinct geographic region.
A percentage-point gap is the subtraction of two shares. It differs from a relative percentage change, and it does not tell you the difference in water square miles. Check each profile’s original water measurement if absolute water extent is your question.
Where the entries on this page are located
- Kentucky10 entries · 10% of this page
- Louisiana10 entries · 10% of this page
- Minnesota7 entries · 7% of this page
- South Dakota6 entries · 6% of this page
- Arkansas5 entries · 5% of this page
- Mississippi5 entries · 5% of this page
The remaining 28 jurisdictions contribute 57 entries. The list above shows the six most represented, with alphabetical ordering when counts tie.
These counts describe representation in this slice of the ranking. They do not measure a state’s share of national land or population. Compare the first and last county equivalents on this page to inspect land, water, and total area separately.
Read the geographic explanation behind this ranking, or return to the ranking overview for the national distribution and guidance on selecting a measurement.
Land rankings use original ALAND square meters; total-area rankings use ALAND + AWATER. Exact ties use ascending GEOID. Displayed square-mile values are rounded. Read the methodology.