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 1801–1900

3,222 county equivalents · page 19 of 33

Download the full dataset

What this part of the ranking shows

This page runs from Chattahoochee County, Georgia at 0.965% water to Montgomery County, Pennsylvania at 0.872% water. The 100 entries represent 34 state-level jurisdictions. Georgia has the most entries on this page (8).

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 1801 through 1900. Areas in square miles.
RankCounty / equivalentStateLand mi²Total mi²Water share
1801Chattahoochee CountyGeorgia248.7251.21%
1802Latimer CountyOklahoma722.1729.11%
1803Simpson CountyKentucky234.2236.51%
1804Steuben CountyNew York1,390.51,4041%
1805Walton CountyGeorgia326.83301%
1806Caddo CountyOklahoma1,277.81,290.11%
1807Wirt CountyWest Virginia232.5234.81%
1808Walsh CountyNorth Dakota1,281.61,2941%
1809Delaware CountyIndiana392.1395.91%
1810Nez Perce CountyIdaho848.3856.51%
1811Randolph CountyNorth Carolina782.4789.91%
1812Wapello CountyIowa431.84361%
1813Pearl River CountyMississippi811.5819.31%
1814Mohave CountyArizona13,332.113,460.81%
1815Mariposa CountyCalifornia1,448.81,462.81%
1816Chester CountySouth Carolina580.9586.51%
1817Cross CountyArkansas616.3622.31%
1818Elk CountyKansas644.3650.51%
1819Jefferson CountyNebraska570.2575.71%
1820Missoula CountyMontana2,5932,617.91%
1821Marion CountyKentucky343.6346.91%
1822Maverick CountyTexas1,279.51,291.81%
1823Caldwell CountyKentucky344.8348.11%
1824Burke CountyGeorgia8278351%
1825Borden CountyTexas897.4906.11%
1826Ware CountyGeorgia899.49081%
1827Saline CountyArkansas723.5730.40.9%
1828Ouachita CountyArkansas732.7739.70.9%
1829Arapahoe CountyColorado797.9805.50.9%
1830Boyd CountyNebraska539.4544.50.9%
1831Pittsylvania CountyVirginia969978.20.9%
1832Spokane CountyWashington1,764.21,7810.9%
1833Sutter CountyCalifornia602.7608.40.9%
1834Miami CountyIndiana373.8377.40.9%
1835Bristol cityVirginia12.9130.9%
1836Athens CountyOhio504.1508.90.9%
1837Dickenson CountyVirginia330.4333.60.9%
1838Clay CountyIowa567.2572.60.9%
1839Sierra CountyCalifornia953.2962.20.9%
1840Dickey CountyNorth Dakota1,131.51,142.20.9%
1841Waynesboro cityVirginia1515.10.9%
1842Linn CountyMissouri615.6621.40.9%
1843Twiggs CountyGeorgia359.3362.60.9%
1844Franklin CountyKansas571.8577.10.9%
1845Russell CountyAlabama641.2647.20.9%
1846Lyon CountyKansas847.5855.40.9%
1847Brooks CountyGeorgia493.2497.80.9%
1848Benewah CountyIdaho776.9784.20.9%
1849Washington ParishLouisiana669.6675.90.9%
1850Schuyler CountyIllinois437.3441.40.9%
1851Kane CountyIllinois519.4524.20.9%
1852Buena Vista CountyIowa574.9580.20.9%
1853Tillman CountyOklahoma871.1879.20.9%
1854Hamilton CountyFlorida514.3519.10.9%
1855Yauco MunicipioPuerto Rico67.868.40.9%
1856Moniteau CountyMissouri415.1418.90.9%
1857Moore CountyTennessee129.2130.40.9%
1858Chautauqua CountyKansas638.9644.80.9%
1859Harney CountyOregon10,134.510,227.70.9%
1860Sherman CountyOregon823.6831.20.9%
1861Carroll CountyGeorgia499.1503.70.9%
1862Jones CountyTexas928.6937.10.9%
1863Culpeper CountyVirginia379.2382.60.9%
1864Stark CountyOhio574.9580.20.9%
1865Graves CountyKentucky551.8556.80.9%
1866Ray CountyMissouri569574.20.9%
1867Ashland CountyOhio423426.80.9%
1868Wetzel CountyWest Virginia358.1361.30.9%
1869Richland CountyMontana2,084.62,103.50.9%
1870Monroe CountyMississippi765.1772.10.9%
1871Cumberland CountyNorth Carolina652.6658.50.9%
1872Haakon CountySouth Dakota1,810.51,826.90.9%
1873Liberty CountyFlorida835.6843.10.9%
1874Halifax CountyNorth Carolina723.7730.30.9%
1875Coal CountyOklahoma516.8521.40.9%
1876Bremer CountyIowa435.5439.40.9%
1877Forrest CountyMississippi466470.20.9%
1878Henry CountyOhio416419.80.9%
1879Cumberland CountyPennsylvania545.5550.40.9%
1880Macon CountyIllinois580.5585.80.9%
1881Brantley CountyGeorgia443.2447.20.9%
1882Teton CountyMontana2,271.62,291.90.9%
1883Fremont CountyWyoming9,183.69,265.70.9%
1884Washington CountyVirginia561.2566.20.9%
1885Grant CountySouth Dakota681.4687.50.9%
1886Mifflin CountyPennsylvania411414.70.9%
1887Trinity CountyCalifornia3,179.33,207.60.9%
1888Crawford CountyKansas589.85950.9%
1889Waller CountyTexas513.4517.90.9%
1890Blount CountyAlabama644.9650.60.9%
1891Aiken CountySouth Carolina1,070.71,080.20.9%
1892Fresno CountyCalifornia5,958.66,011.30.9%
1893Marion CountyWest Virginia308.8311.50.9%
1894Amelia CountyVirginia357.83610.9%
1895Kingfisher CountyOklahoma898.19060.9%
1896Lucas CountyIowa430.7434.50.9%
1897Christian CountyIllinois709.5715.70.9%
1898Okanogan CountyWashington5,266.25,312.70.9%
1899Clinton CountyOhio408.7412.30.9%
1900Montgomery CountyPennsylvania482.9487.20.9%

Read the differences behind ranks 1801–1900

The median water share among these 100 entries is 0.919 %. The first and last entries span 0.093 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

  • Georgia8 entries · 8% of this page
  • Virginia7 entries · 7% of this page
  • California5 entries · 5% of this page
  • Iowa5 entries · 5% of this page
  • Kansas5 entries · 5% of this page
  • Ohio5 entries · 5% of this page

The remaining 28 jurisdictions contribute 65 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.

Find a county

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.