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2026 Census Gazetteer

Largest counties by land area

All counties and county equivalents, including Alaska and Puerto Rico, ranked by land area. Alaska’s boroughs and census areas are included because they serve the same statistical level as counties.

Ranks 101–200

3,222 county equivalents · page 2 of 33

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What this part of the ranking shows

This page runs from La Paz County, Arizona at 4,496.579 mi² of land area to Shoshone County, Idaho at 2,637.529 mi² of land area. The 100 entries represent 19 state-level jurisdictions. Montana has the most entries on this page (15).

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 land area, ranks 101 through 200. Areas in square miles.
RankCounty / equivalentStateLand mi²Total mi²Water share
101La Paz CountyArizona4,496.64,510.70.3%
102Uintah CountyUtah4,482.94,504.50.5%
103Emery CountyUtah4,462.64,472.20.2%
104Lea CountyNew Mexico4,391.64,394.70.1%
105Aleutians West Census AreaAlaska4,387.314,116.568.9%
106Fergus CountyMontana4,339.34,3500.2%
107Yakima CountyWashington4,294.54,310.40.4%
108Albany CountyWyoming4,274.24,308.80.8%
109Converse CountyWyoming4,2554,265.10.2%
110Blaine CountyMontana4,227.54,238.70.3%
111San Diego CountyCalifornia4,210.94,525.97%
112Sierra CountyNew Mexico4,181.24,238.21.3%
113Eddy CountyNew Mexico4,176.34,198.20.5%
114Eureka CountyNevada4,175.74,1800.1%
115Imperial CountyCalifornia4,175.54,480.56.8%
116Johnson CountyWyoming4,154.24,174.60.5%
117Lincoln CountyWyoming4,075.34,094.60.5%
118Los Angeles CountyCalifornia4,060.34,749.414.5%
119Hawaii CountyHawaii4,028.45,086.220.8%
120Teton CountyWyoming3,996.84,217.35.2%
121Kane CountyUtah3,994.14,107.22.8%
122Weld CountyColorado3,9854,016.70.8%
123Chouteau CountyMontana3,972.53,996.70.6%
124Grant CountyNew Mexico3,961.23,967.10.1%
125Piscataquis CountyMaine3,960.84,3789.5%
126Modoc CountyCalifornia3,948.24,203.36.1%
127Somerset CountyMaine3,924.34,093.44.1%
128Presidio CountyTexas3,855.33,855.90%
129Union CountyNew Mexico3,825.13,8310.2%
130Culberson CountyTexas3,812.23,812.40%
131Doña Ana CountyNew Mexico3,808.23,8150.2%
132Custer CountyMontana3,783.33,793.20.3%
133Shasta CountyCalifornia3,775.63,847.41.9%
134Colfax CountyNew Mexico3,7583,768.10.3%
135Mineral CountyNevada3,751.33,811.51.6%
136Sandoval CountyNew Mexico3,710.23,714.40.1%
137Grand CountyUtah3,672.93,684.70.3%
138Valley CountyIdaho3,665.13,733.51.8%
139Lincoln CountyMontana3,612.63,674.91.7%
140Madison CountyMontana3,588.23,603.50.4%
141Esmeralda CountyNevada3,581.93,589.10.2%
142Humboldt CountyCalifornia3,5684,052.311.9%
143Mendocino CountyCalifornia3,506.83,878.29.6%
144Meade CountySouth Dakota3,470.93,482.80.3%
145Lewis and Clark CountyMontana3,458.43,497.61.1%
146Hidalgo CountyNew Mexico3,438.63,447.70.3%
147Penobscot CountyMaine3,3973,5574.5%
148Juab CountyUtah3,391.83,405.80.4%
149Webb CountyTexas3,361.53,375.60.4%
150Torrance CountyNew Mexico3,345.23,346.10%
151Carter CountyMontana3,340.53,3480.2%
152Mesa CountyColorado3,328.73,341.10.4%
153San Luis Obispo CountyCalifornia3,300.83,615.88.7%
154Powder River CountyMontana3,298.23,298.80%
155Iron CountyUtah3,296.23,300.60.1%
156Monterey CountyCalifornia3,281.73,771.213%
157Gunnison CountyColorado3,239.13,259.60.6%
158Duchesne CountyUtah3,235.53,250.50.5%
159Rio Blanco CountyColorado3,2213,222.90.1%
160Umatilla CountyOregon3,215.53,231.50.5%
161Trinity CountyCalifornia3,179.33,207.60.9%
162Saguache CountyColorado3,168.63,170.30.1%
163Wallowa CountyOregon3,145.93,151.40.2%
164Val Verde CountyTexas3,144.83,232.72.7%
165Big Horn CountyWyoming3,1373,158.30.7%
166Koochiching CountyMinnesota3,104.73,1561.6%
167Elmore CountyIdaho3,075.13,101.50.9%
168Baker CountyOregon3,0683,0880.6%
169Mono CountyCalifornia3,048.93,131.82.6%
170Guadalupe CountyNew Mexico3,029.83,030.90%
171Deschutes CountyOregon3,017.63,054.21.2%
172Glacier CountyMontana2,995.23,0361.3%
173Crook CountyOregon2,978.92,9870.3%
174Luna CountyNew Mexico2,965.22,965.30%
175Tehama CountyCalifornia2,949.12,962.20.4%
176Garfield CountyColorado2,947.42,955.80.3%
177Chelan CountyWashington2,921.22,994.42.4%
178Petersburg BoroughAlaska2,901.63,827.524.2%
179Hill CountyMontana2,899.42,916.50.6%
180Quay CountyNew Mexico2,8742,881.10.2%
181Perkins CountySouth Dakota2,870.52,8900.7%
182Sitka City and BoroughAlaska2,870.34,774.539.9%
183Crook CountyWyoming2,854.52,865.40.4%
184Crockett CountyTexas2,807.32,807.30%
185Park CountyMontana2,802.52,813.20.4%
186Jackson CountyOregon2,783.32,801.30.6%
187Pennington CountySouth Dakota2,776.82,784.50.3%
188Sanders CountyMontana2,760.42,789.91.1%
189McKenzie CountyNorth Dakota2,760.12,860.43.5%
190Santa Barbara CountyCalifornia2,733.93,787.727.8%
191Juneau City and BoroughAlaska2,7033,25817%
192Cascade CountyMontana2,698.22,711.50.5%
193Laramie CountyWyoming2,685.92,687.50.1%
194Grant CountyWashington2,679.62,791.44%
195St. Lawrence CountyNew York2,679.52,821.25%
196Harding CountySouth Dakota2,671.62,678.10.2%
197Itasca CountyMinnesota2,667.52,927.88.9%
198McCone CountyMontana2,642.22,6821.5%
199Blaine CountyIdaho2,637.72,6550.6%
200Shoshone CountyIdaho2,637.52,642.90.2%

Read the differences behind ranks 101–200

The median land area among these 100 entries is 3,342.845 mi². The first and last entries span 1,859.05 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

  • Montana15 entries · 15% of this page
  • California13 entries · 13% of this page
  • New Mexico13 entries · 13% of this page
  • Wyoming8 entries · 8% of this page
  • Utah7 entries · 7% of this page
  • Colorado6 entries · 6% of this page

The remaining 13 jurisdictions contribute 38 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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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.