| 1.
San Juan |
7,725 sq mi
(4,944,000 acres) |
| 2.
Tooele |
6,923 sq mi
(4,430,720 acres) |
| 3.
Millard |
6,818 sq mi
(4,363,520 acres) |
| 4.
Box Elder |
5,614 sq mi
(3,592,960 acres) |
| 5.
Garfield |
5,158 sq mi
(3,301,120 acres) |
| 6.
Uintah |
4,487 sq mi
(2,871,680 acres) |
| 7.
Emery |
4,439 sq mi
(2,840,960 acres) |
| 8.
Kane |
3,904 sq mi
(2,498,560 acres) |
| 9.
Grand |
3,689 sq mi
(2,360,960 acres) |
| 10.
Juab |
3,412 sq mi
(2,183,680 acres) |
| 11.
Iron |
3,300 sq mi
(2,112,000 acres) |
| 12.
Duchesne |
3,255 sq mi
(2,083,200 acres) |
| 13.
Beaver |
2,586 sq mi
(1,655,040 acres) |
| 14.
Wayne |
2,486 sq mi
(1,591,040 acres) |
| 15.
Washington |
2,422 sq mi
(1,550,080 acres) |
| 16.
Utah |
2,014 sq mi
(1,288,960 acres) |
| 17.
Sevier |
1,976 sq mi
(1,264,640 acres) |
| 18.
Summit |
1,849 sq mi
(1,183,360 acres) |
| 19.
Sanpete |
1,597 sq mi
(1,022,080 acres) |
| 20.
Carbon |
1,476 sq mi
(944,640 acres) |
| 21.
Wasatch |
1,191 sq mi
(762,240 acres) |
| 22.
Cache |
1,173 sq mi
(750,720 acres) |
| 23.
Rich |
1,034 sq mi
(661,760 acres) |
| 24.
Salt Lake |
764 sq mi
(488,960 acres) |
| 25.
Piute |
754 sq mi
(482,560 acres) |
| 26.
Daggett |
682 sq mi
(436,480 acres) |
| 27.
Weber |
644 sq mi
(421,160 acres) |
| 28.
Morgan |
603 sq mi
(385,920 acres) |
| 29.
Davis |
268 sq mi
(171,520 acres) |
| 1.
Davis |
268 sq mi
(171,520 acres) |
| 2.
Morgan |
603 sq mi
(385,920 acres) |
| 3.
Weber |
644 sq mi
(421,160 acres) |
| 4.
Daggett |
682 sq mi
(436,480 acres) |
| 5.
Piute |
754 sq mi
(482,560 acres) |
| 6.
Salt Lake |
764 sq mi
(488,960 acres) |
| 7.
Rich |
1,034 sq mi
(661,760 acres) |
| 8.
Cache |
1,173 sq mi
(750,720 acres) |
| 9.
Wasatch |
1,191 sq mi
(762,240 acres) |
| 10.
Carbon |
1,476 sq mi
(944,640 acres) |
| 11.
Sanpete |
1,597 sq mi
(1,022,080 acres) |
| 12.
Summit |
1,849 sq mi
(1,183,360 acres) |
| 13.
Sevier |
1,976 sq mi
(1,264,640 acres) |
| 14.
Utah |
2,014 sq mi
(1,288,960 acres) |
| 15.
Washington |
2,422 sq mi
(1,550,080 acres) |
| 16.
Wayne |
2,486 sq mi
(1,591,040 acres) |
| 17.
Beaver |
2,586 sq mi
(1,655,040 acres) |
| 18.
Duchesne |
3,255 sq mi
(2,083,200 acres) |
| 19.
Iron |
3,300 sq mi
(2,112,000 acres) |
| 20.
Juab |
3,412 sq mi
(2,183,680 acres) |
| 21.
Grand |
3,689 sq mi
(2,360,960 acres) |
| 22.
Kane |
3,904 sq mi
(2,498,560 acres) |
| 23.
Emery |
4,439 sq mi
(2,840,960 acres) |
| 24.
Uintah |
4,487 sq mi
(2,871,680 acres) |
| 25.
Garfield |
5,158 sq mi
(3,301,120 acres) |
| 26.
Box Elder |
5,614 sq mi
(3,592,960 acres) |
| 27.
Millard |
6,818 sq mi
(4,363,520 acres) |
| 28.
Tooele |
6,923 sq mi
(4,430,720 acres) |
| 29.
San Juan |
7,725 sq mi
(4,944,000 acres) |
