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2026 Census Gazetteer

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 401–500

3,222 county equivalents · page 5 of 33

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What this part of the ranking shows

This page runs from Piscataquis County, Maine at 9.529% water to North Slope Borough, Alaska at 6.359% water. The 100 entries represent 31 state-level jurisdictions. Minnesota has the most entries on this page (9).

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.

Counties with the highest water share, ranks 401 through 500. Areas in square miles.
RankCounty / equivalentStateLand mi²Total mi²Water share
401Piscataquis CountyMaine3,960.84,3789.5%
402Marion CountyTexas380.9420.49.4%
403McLean CountyNorth Dakota2,110.32,3289.4%
404San Jacinto CountyTexas569.2627.99.3%
405Westmoreland CountyVirginia229.3252.99.3%
406Solano CountyCalifornia821.7906.19.3%
407Marshall CountyAlabama566623.29.2%
408Stone CountyMissouri463.8510.69.2%
409Forsyth CountyGeorgia224.6247.29.1%
410Washington CountyMinnesota384.8423.39.1%
411Wayne CountyMichigan611.8672.49%
412Becker CountyMinnesota1,3151,445.29%
413St. Louis CountyMinnesota6,248.16,860.68.9%
414Itasca CountyMinnesota2,667.52,927.88.9%
415Ramsey CountyNorth Dakota1,185.41,3018.9%
416McCormick CountySouth Carolina358.9393.68.8%
417Desha CountyArkansas741.2812.78.8%
418Clay CountyTennessee236.5259.38.8%
419Kennebec CountyMaine867.5951.28.8%
420San Luis Obispo CountyCalifornia3,300.83,615.88.7%
421Mason CountyWashington959.61,0518.7%
422Aitkin CountyMinnesota1,821.31,994.88.7%
423Hennepin CountyMinnesota554606.88.7%
424Roane CountyTennessee360.83958.7%
425Craven CountyNorth Carolina706.5773.38.6%
426Livingston CountyKentucky313342.28.5%
427Franklin CountyVermont631689.18.4%
428Hall CountyGeorgia392.5428.68.4%
429Hamblen CountyTennessee161.2175.88.3%
430King CountyWashington2,115.82,307.48.3%
431Wahkiakum CountyWashington262.9286.78.3%
432Trigg CountyKentucky441.4481.38.3%
433Broward CountyFlorida1,2031,308.48.1%
434Highlands CountyFlorida1,017.71,106.78%
435Green Lake CountyWisconsin349.5380.18%
436Carson CityNevada144.5157.18%
437Mecklenburg CountyVirginia625.3679.27.9%
438Henderson CountyTexas873.8948.47.9%
439Chicot CountyArkansas637691.27.8%
440Haskell CountyOklahoma576.7625.57.8%
441Garland CountyArkansas677.6734.57.8%
442Denton CountyTexas878.1951.87.7%
443Angelina CountyTexas797.9864.87.7%
444Lexington CountySouth Carolina698.5757.17.7%
445Cherokee CountyAlabama553.66007.7%
446Pierce CountyWashington1,6681,805.57.6%
447Delta CountyTexas256.8277.97.6%
448Kandiyohi CountyMinnesota797.4862.47.5%
449DeKalb CountyTennessee304.43297.5%
450Wright CountyMinnesota661.2714.47.5%
451Camden CountyMissouri655.8708.57.4%
452Seminole CountyGeorgia237.6256.67.4%
453Weber CountyUtah611659.97.4%
454Hughes CountySouth Dakota741.5800.77.4%
455Hubbard CountyMinnesota926999.57.4%
456Loudon CountyTennessee229.3247.47.3%
457Multnomah CountyOregon4314657.3%
458Wood CountyTexas645.3695.77.3%
459Grainger CountyTennessee280.6302.47.2%
460Limestone CountyAlabama563.4607.27.2%
461Lauderdale CountyAlabama668719.67.2%
462Troup CountyGeorgia4144467.2%
463McCracken CountyKentucky248.8267.97.1%
464Clinton CountyNew York1,037.81,117.57.1%
465Bear Lake CountyIdaho975.71,049.67%
466Navarro CountyTexas1,009.71,0867%
467Fulton CountyNew York495.5532.97%
468Assumption ParishLouisiana344369.97%
469Lafayette CountyMississippi631.7679.27%
470Putnam CountyIllinois160.1172.17%
471Oconee CountySouth Carolina626.6673.67%
472San Diego CountyCalifornia4,210.94,525.97%
473Suffolk cityVirginia399.2428.96.9%
474Warren CountyNew York867.2931.66.9%
475Concordia ParishLouisiana695.7747.46.9%
476Delaware CountyOklahoma737.77926.9%
477Sawyer CountyWisconsin1,257.61,350.26.9%
478Alexander CountyIllinois235.4252.66.8%
479Marion CountyArkansas596.6640.26.8%
480Imperial CountyCalifornia4,175.54,480.56.8%
481Stewart CountyTennessee459.84936.7%
482St. Louis cityMissouri61.766.26.7%
483Pender CountyNorth Carolina871.3934.26.7%
484Pepin CountyWisconsin232248.76.7%
485Colleton CountySouth Carolina1,056.51,132.56.7%
486Thurston CountyWashington722.5774.16.7%
487Burnett CountyWisconsin821.6880.26.7%
488Jasper CountySouth Carolina655.2701.56.6%
489Pickett CountyTennessee163174.56.6%
490Washburn CountyWisconsin797.1853.36.6%
491Salt Lake CountyUtah752.7805.56.6%
492Utah CountyUtah2,004.52,144.36.5%
493Tallapoosa CountyAlabama716.5766.36.5%
494Putnam CountyNew York230.3246.26.5%
495Cleburne CountyArkansas554592.16.4%
496Benton CountyMissouri704752.56.4%
497Issaquena CountyMississippi413441.46.4%
498Wicomico CountyMaryland374.4400.26.4%
499Essex CountyNew York1,794.11,916.36.4%
500North Slope BoroughAlaska88,797.694,827.96.4%

Read the differences behind ranks 401–500

The median water share among these 100 entries is 7.442 %. The first and last entries span 3.17 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

  • Minnesota9 entries · 9% of this page
  • Tennessee8 entries · 8% of this page
  • Texas8 entries · 8% of this page
  • Alabama5 entries · 5% of this page
  • Arkansas5 entries · 5% of this page
  • New York5 entries · 5% of this page

The remaining 25 jurisdictions contribute 60 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.

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Browse by state for a complete state ranking.

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.