US County Area home
2026 Census Gazetteer

Largest counties by total area

Rankings include both Census land and water measurements. Water can change the order substantially, especially for coastal counties and counties bordering the Great Lakes.

Ranks 1901–2000

3,222 county equivalents · page 20 of 33

Download the full dataset

What this part of the ranking shows

This page runs from Osceola County, Michigan at 573.014 mi² of total area to Hall County, Nebraska at 552.144 mi² of total area. The 100 entries represent 29 state-level jurisdictions. Iowa has the most entries on this page (13).

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.

Largest counties by total area, ranks 1901 through 2000. Areas in square miles.
RankCounty / equivalentStateLand mi²Total mi²Water share
1901Osceola CountyMichigan566.35731.2%
1902Warren CountyIowa569.75730.6%
1903Rockingham CountyNorth Carolina565.7572.81.2%
1904Black Hawk CountyIowa565.8572.71.2%
1905Clay CountyIowa567.2572.60.9%
1906Morgan CountyIllinois569572.50.6%
1907Calhoun CountyIowa569.8572.10.4%
1908Brown CountyKansas570.9572.10.2%
1909Miner CountySouth Dakota570.2571.90.3%
1910Sherman CountyNebraska565.9571.61%
1911Neshoba CountyMississippi570.1571.60.3%
1912Gratiot CountyMichigan568.4571.60.6%
1913Tuscarawas CountyOhio567.6571.60.7%
1914Oscoda CountyMichigan565.7571.51%
1915Garfield CountyNebraska569.4571.40.4%
1916Greene CountyIowa569.6571.30.3%
1917Mecosta CountyMichigan555.2571.22.8%
1918Logan CountyNebraska570.7571.20.1%
1919Loup CountyNebraska563.3571.11.4%
1920Dorchester CountySouth Carolina568.45710.5%
1921Macomb CountyMichigan479.4570.916%
1922Washington CountyIowa568.8570.90.4%
1923Flagler CountyFlorida486.2570.814.8%
1924Lincoln CountyTennessee570.3570.70.1%
1925Greeley CountyNebraska569.8570.70.1%
1926Kalkaska CountyMichigan559.7570.61.9%
1927Marion CountyIowa554.5570.52.8%
1928Valley CountyNebraska568.1570.50.4%
1929Sanborn CountySouth Dakota569.2570.50.2%
1930Carroll CountyIowa569.5570.30.1%
1931Adair CountyIowa569.3570.30.2%
1932Hardin CountyIowa569.35700.1%
1933Lincoln CountyArkansas559.5569.81.8%
1934Brunswick CountyVirginia566.4569.60.6%
1935Adair CountyMissouri567.3569.40.4%
1936Palo Alto CountyIowa563.9569.41%
1937Cooper CountyMissouri564.7569.20.8%
1938Daviess CountyMissouri563.35691%
1939Houston CountyMinnesota552.1568.82.9%
1940Mercer CountyIllinois561.2568.71.3%
1941Henry CountyAlabama561.9568.31.1%
1942Davidson CountyNorth Carolina553567.52.6%
1943Coshocton CountyOhio563.9567.40.6%
1944Rutherford CountyNorth Carolina565.4567.20.3%
1945Pike CountyPennsylvania544.9566.83.9%
1946Franklin CountyMississippi564566.80.5%
1947Blount CountyTennessee558.8566.61.4%
1948Conway CountyArkansas552566.52.6%
1949Darlington CountySouth Carolina560.6566.31%
1950Washington CountyVirginia561.2566.20.9%
1951Cass CountyNebraska556.9565.91.6%
1952Kitsap CountyWashington395.1565.830.2%
1953Cass CountyIowa564.3564.90.1%
1954Stephenson CountyIllinois564.2564.80.1%
1955Gem CountyIdaho559.8564.60.9%
1956Richland ParishLouisiana555.6564.41.6%
1957Adams CountyNebraska563.3564.20.2%
1958Washington CountyIllinois562.6563.90.2%
1959Christian CountyMissouri562.6563.80.2%
1960McNairy CountyTennessee562.8563.60.1%
1961Mason CountyIllinois539.4563.64.3%
1962Little River CountyArkansas531.3563.35.7%
1963Crawford CountyMichigan556.4563.31.2%
1964Northeastern Connecticut Planning RegionConnecticut553.9563.21.6%
1965Washington CountyRhode Island329.3562.841.5%
1966Hampton CountySouth Carolina560562.70.5%
1967Dale CountyAlabama561.1562.70.3%
1968Montmorency CountyMichigan546.7562.62.8%
1969Madison CountyIowa561562.20.2%
1970Pamlico CountyNorth Carolina336.5561.640.1%
1971Jasper CountyIndiana559.7561.40.3%
1972Cleburne CountyAlabama560.15610.2%
1973Perry CountyArkansas551.3560.81.7%
1974Ingham CountyMichigan556.1560.70.8%
1975Teller CountyColorado557.1559.10.3%
1976Madison CountyTennessee557.2558.60.3%
1977Dauphin CountyPennsylvania524.9558.16%
1978Cleveland CountyOklahoma538.9557.93.4%
1979Highland CountyOhio553.1557.80.8%
1980Wayne CountyNorth Carolina553.9557.70.7%
1981Barnwell CountySouth Carolina548.4557.31.6%
1982Logan CountyKentucky552.25570.9%
1983Wayne CountyOhio5555570.3%
1984Graves CountyKentucky551.8556.80.9%
1985Humphreys CountyTennessee530.8556.74.7%
1986Jefferson CountyKansas532.6556.74.3%
1987Colquitt CountyGeorgia547.1556.61.7%
1988Webster CountyWest Virginia553.5556.20.5%
1989Shawnee CountyKansas544555.72.1%
1990Perry CountyPennsylvania551.5555.50.7%
1991Obion CountyTennessee544.9555.41.9%
1992Lancaster CountySouth Carolina549.2555.21.1%
1993Richardson CountyNebraska551.8554.60.5%
1994Haywood CountyNorth Carolina553.6554.50.2%
1995Hopkins CountyKentucky542.3554.42.2%
1996Kosciusko CountyIndiana531.4554.44.1%
1997Seneca CountyOhio551552.80.3%
1998Hancock CountyMississippi474552.814.3%
1999Thomas CountyGeorgia544.6552.21.4%
2000Hall CountyNebraska546.5552.11%

Read the differences behind ranks 1901–2000

The median total area among these 100 entries is 566.049 mi². The first and last entries span 20.87 square miles. This median describes the entries on this page, not the full national dataset. Pagination is a browsing boundary, not a distinct geographic region.

A difference of one position means only that two entries are adjacent in this ordering. Their actual size difference can be tiny or substantial. Compare the measurements as well as the rank, and use the original square-meter fields when rounded labels appear equal.

Where the entries on this page are located

  • Iowa13 entries · 13% of this page
  • Nebraska10 entries · 10% of this page
  • Michigan9 entries · 9% of this page
  • North Carolina6 entries · 6% of this page
  • Tennessee6 entries · 6% of this page
  • Illinois5 entries · 5% of this page

The remaining 23 jurisdictions contribute 51 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.