Utah Counties by Land Area
Want to know about the largest to smallest counties in Utah, USA in terms of total land area? Check this resource Utah counties by land area to discover all the details regarding county map (boundary), and nearby counties. On the other hand, check Utah counties by population and Utah cities by population to know more about city and county based demographic details.
What is the largest county in Utah by land area?
San Juan County is the largest county in Utah spanning 7823.76 square miles, with an additional 110.04 square miles of water area. Following San Juan County, Tooele County ranks as the second largest in terms of land area, covering 7040.27 square miles, while Millard County secures the position as the third largest county in Utah.
What is the smallest county by land area in Utah?
Davis County is the smallest in Utah by total land area, covers about 324.72 square miles.
What is the largest county by population in Utah?
Salt Lake County in Utah, USA, stands as the most populous county having 1,185,238 residents as per the 2022 census data.
What is the smallest county by population in Utah?
Daggett County is the smallest in Utah by total population, having 935 residents as per the 2022 census data.
| Rank | County in Utah | Land Area square miles | Water Area square miles | Total Area square miles |
|---|---|---|---|---|
| 1 | San Juan County | 7,824 | 110 | 7,934 |
| 2 | Tooele County | 7,040 | 246 | 7,286 |
| 3 | Millard County | 6,785 | 51 | 6,837 |
| 4 | Box Elder County | 5,781 | 948 | 6,729 |
| 5 | Garfield County | 5,180 | 29 | 5,209 |
| 6 | Uintah County | 4,483 | 22 | 4,504 |
| 7 | Emery County | 4,463 | 10 | 4,472 |
| 8 | Grand County | 3,673 | 12 | 3,685 |
| 9 | Juab County | 3,392 | 14 | 3,406 |
| 10 | Iron County | 3,296 | 4 | 3,301 |
| 11 | Duchesne County | 3,236 | 15 | 3,251 |
| 12 | Beaver County | 2,583 | 2 | 2,585 |
| 13 | Wayne County | 2,461 | 6 | 2,467 |
| 14 | Washington County | 2,428 | 3 | 2,431 |
| 15 | Utah County | 2,004 | 140 | 2,144 |
| 16 | Sevier County | 1,910 | 8 | 1,918 |
| 17 | Summit County | 1,871 | 10 | 1,881 |
| 18 | Sanpete County | 1,590 | 12 | 1,602 |
| 19 | Carbon County | 1,479 | 6 | 1,485 |
| 20 | Wasatch County | 1,177 | 31 | 1,208 |
| 21 | Cache County | 1,165 | 8 | 1,173 |
| 22 | Rich County | 1,029 | 58 | 1,086 |
| 23 | Piute County | 758 | 8 | 766 |
| 24 | Salt Lake County | 753 | 53 | 806 |
| 25 | Daggett County | 697 | 24 | 720 |
| 26 | Weber County | 611 | 49 | 660 |
| 27 | Morgan County | 609 | 2 | 611 |
| 28 | Davis County | 325 | 310 | 635 |