Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| North Fork Robinson Creek | Stream | | Clearwater | 46 50 06 N | 115 58 10 W |
| North Fork Ross Fork | Stream | | Camas | 43 47 47 N | 114 59 19 W |
| North Fork Sage Creek | Stream | | Custer | 44 05 38 N | 114 03 07 W |
| North Fork Sage Creek | Stream | | Kootenai | 47 53 09 N | 116 35 39 W |
| North Fork Saint Charles Creek | Stream | | Franklin | 42 05 43 N | 111 31 45 W |
| North Fork Saint Joe River | Stream | | Shoshone | 47 15 03 N | 115 47 49 W |
| North Fork Salmon Falls Creek | Stream | | Twin Falls | 41 47 22 N | 114 57 43 W |
| North Fork Salmon River | Stream | | Lemhi | 45 24 19 N | 113 59 41 W |
| North Fork Sand Creek | Stream | | Valley | 44 38 35 N | 115 29 51 W |
| North Fork Sandrock Canyon | Valley | | Cassia | 42 10 53 N | 113 14 30 W |
| North Fork Sheep Canyon | Valley | | Power | 42 25 50 N | 112 59 58 W |
| North Fork Sheep Creek | Stream | | Custer | 44 38 57 N | 115 01 05 W |
| North Fork Sheep Creek | Stream | | Idaho | 45 20 37 N | 116 20 13 W |
| North Fork Sheep Creek | Stream | | Lemhi | 45 30 00 N | 113 49 02 W |
| North Fork Sheep Creek | Stream | | Valley | 45 02 20 N | 115 35 01 W |
| North Fork Shoshone Creek | Stream | | Twin Falls | 42 14 01 N | 114 20 31 W |
| North Fork Silver Creek | Stream | | Clearwater | 46 42 46 N | 115 54 29 W |
| North Fork Simmons Creek | Stream | | Shoshone | 47 08 50 N | 115 20 49 W |
| North Fork Sinker Creek | Stream | | Owyhee | 43 04 06 N | 116 35 59 W |
| North Fork Six-bit Creek | Stream | | Valley | 44 40 14 N | 115 45 48 W |
| North Fork Skookumchuck Creek | Stream | | Idaho | 45 42 19 N | 116 15 04 W |
| North Fork Slate Creek | Stream | | Idaho | 45 38 24 N | 116 07 09 W |
| North Fork Smith Creek | Stream | | Boise | 43 58 00 N | 115 48 21 W |
| North Fork Smith Creek | Stream | | Valley | 45 11 18 N | 115 20 46 W |
| North Fork Soldier Creek | Stream | | Boise | 44 07 15 N | 116 15 50 W |
| North Fork Soldier Creek | Stream | | Camas | 43 29 52 N | 114 50 00 W |
| North Fork Split Creek | Stream | | Fremont | 44 24 39 N | 111 11 04 W |
| North Fork Spring Branch Creek | Stream | | Kootenai | 47 49 24 N | 116 54 04 W |
| North Fork Spruce Creek | Stream | | Idaho | 46 36 22 N | 114 23 36 W |
| North Fork Squaw Creek | Stream | | Bonner | 48 43 58 N | 116 49 27 W |
| North Fork Squaw Creek | Stream | | Idaho | 45 25 04 N | 116 25 29 W |
| North Fork Squaw Creek | Stream | | Lemhi | 44 21 20 N | 113 19 48 W |
| North Fork Star Creek | Stream | | Adams | 45 09 08 N | 116 25 08 W |
| North Fork Steel Creek | Stream | | Elmore | 43 42 10 N | 115 17 27 W |
| North Fork Stoddard Creek | Stream | | Idaho | 45 14 45 N | 114 41 46 W |
| North Fork Storm Creek | Stream | | Idaho | 46 32 27 N | 114 24 13 W |
| North Fork Stump Creek | Stream | | Caribou | 42 52 09 N | 111 10 20 W |
| North Fork Sublett Creek | Stream | | Power | 42 19 53 N | 112 59 52 W |
| North Fork Sugar Creek | Stream | | Boise | 43 51 40 N | 115 56 00 W |
| North Fork Sulphur Creek | Stream | | Valley | 44 33 17 N | 115 26 22 W |
| North Fork Teton River | Stream | 1677 | Fremont | 43 55 30 N | 111 17 33 W |
| North Fork Thompson Creek | Stream | | Blaine | 43 40 37 N | 114 32 44 W |
| North Fork Thorn Creek | Stream | | Boise | 43 44 41 N | 115 50 03 W |
| North Fork Tom Beall Creek | Stream | | Nez Perce | 46 25 27 N | 116 47 00 W |
| North Fork Toponce Creek | Stream | | Caribou | 42 52 57 N | 112 03 53 W |
| North Fork Tower Creek | Stream | | Lemhi | 45 23 09 N | 113 50 47 W |
| North Fork Trail | Trail | 1753 | Bonner | 48 27 38 N | 116 10 26 W |
| North Fork Trap Creek | Stream | | Valley | 44 58 33 N | 115 10 52 W |
| North Fork Trinity Creek | Stream | | Elmore | 43 38 27 N | 115 21 41 W |
| North Fork Trout Creek | Stream | | Bonneville | 43 08 06 N | 111 05 27 W |
| North Fork Twentymile Creek | Stream | | Valley | 45 07 57 N | 115 57 52 W |
| North Fork Twin Creek | Stream | | Bonner | 48 03 46 N | 116 09 08 W |
| North Fork Tyson Creek | Stream | | Benewah | 47 06 44 N | 116 26 42 W |
| North Fork Valley | Valley | | Elmore | 43 33 34 N | 115 37 17 W |
| North Fork Webber Creek | Stream | | Lemhi | 44 21 28 N | 112 45 18 W |
| North Fork White Bird Creek | Stream | | Idaho | 45 47 29 N | 116 13 56 W |
| North Fork Whitehawk Creek | Stream | | Valley | 44 16 37 N | 115 35 10 W |
| North Fork Williams Creek | Stream | | Lemhi | 45 04 40 N | 114 00 46 W |
| North Fork Willow Creek | Stream | | Bonneville | 43 30 46 N | 112 03 04 W |
| North Fork Willow Creek | Stream | | Gem | 43 48 39 N | 116 26 00 W |
| North Fork Willow Creek | Stream | | Lewis | 46 08 00 N | 116 30 54 W |
| North Fork Wolf Fang Creek | Stream | | Idaho | 45 12 56 N | 115 26 39 W |
| North Fremont Junior-Senior High School | School | 1601 | Fremont | 44 04 19 N | 111 27 17 W |
| North Gem Elementary School | School | 1654 | Caribou | 42 43 03 N | 111 53 18 W |
| North Gem Junior-Senior High School | School | 1654 | Caribou | 42 43 04 N | 111 53 18 W |
| North Gold Creek | Stream | | Bonner | 47 58 25 N | 116 27 08 W |
| North Gooding Canal | Canal | 1270 | Lincoln | 43 01 43 N | 114 23 57 W |
| North Gooding Main Canal | Canal | 1136 | Gooding | 43 00 51 N | 114 41 15 W |
| North Grizzly Creek | Stream | | Shoshone | 47 45 12 N | 116 03 15 W |
| North Gulch | Valley | | Custer | 44 27 01 N | 114 22 54 W |
| North Hansel Mountains | Range | 2126 | Oneida | 42 04 17 N | 112 35 35 W |
| North Heglar Canyon | Valley | | Cassia | 42 28 36 N | 113 07 59 W |
| North Hill Mine | Mine | 1797 | Idaho | 45 44 45 N | 115 35 12 W |
| North Hornet Creek | Stream | | Adams | 44 48 20 N | 116 32 55 W |
| North Hornet Mine | Mine | 1405 | Adams | 44 53 31 N | 116 38 20 W |
| North Idaho Cancer Treatment Center | Hospital | 681 | Kootenai | 47 41 40 N | 116 47 29 W |
| North Idaho Christian School | School | 697 | Kootenai | 47 45 58 N | 116 47 01 W |
| North Idaho College | School | 650 | Kootenai | 47 40 33 N | 116 47 46 W |
| North Idaho Day Surgery and Laser Center | Hospital | 679 | Kootenai | 47 41 50 N | 116 47 55 W |
| North Idaho Immediate Care Center | Hospital | 679 | Kootenai | 47 41 48 N | 116 48 01 W |
| North Idaho Indian Agency | Locale | 305 | Nez Perce | 46 23 45 N | 116 48 06 W |
| North Indian Creek | Stream | | Ada | 43 29 06 N | 116 23 20 W |
| North Jump Creek | Stream | | Lemhi | 44 22 05 N | 113 03 46 W |
| North Junior High School | School | 824 | Ada | 43 37 33 N | 116 12 15 W |
| North Junipers | Range | 1812 | Fremont | 44 03 08 N | 111 52 23 W |
| North Kenyon | Populated Place | 1309 | Cassia | 42 25 56 N | 113 51 40 W |
| North Kurtz Spring | Spring | 1689 | Oneida | 42 18 24 N | 112 51 31 W |
| North Laidlaw Butte | Summit | 1802 | Blaine | 43 21 04 N | 113 31 46 W |
| North Lake | Lake | 1461 | Jefferson | 43 54 60 N | 112 23 48 W |
| North Lake | Lake | 2359 | Valley | 45 08 50 N | 115 54 53 W |
| North Lake Canal | Canal | 1459 | Jefferson | 43 55 16 N | 112 30 13 W |
| North Lambert Reservoir | Reservoir | 1635 | Owyhee | 42 18 33 N | 116 43 24 W |
| North Lapwai | Populated Place | 243 | Nez Perce | 46 26 38 N | 116 50 10 W |
| North Lateral Marysville Canal | Canal | 1626 | Fremont | 44 04 55 N | 111 23 57 W |
| North Leigh Canal | Canal | 1938 | Teton | 43 49 12 N | 111 04 27 W |
| North Leigh Creek | Stream | | Teton | 43 49 05 N | 111 07 58 W |
| North Lewiston | Populated Place | 230 | Nez Perce | 46 25 29 N | 117 00 15 W |
| North Lone Lake | Lake | 1946 | Idaho | 46 13 33 N | 115 10 45 W |
| North Lookout Reservoir | Reservoir | 1635 | Owyhee | 42 08 16 N | 116 32 29 W |
| North Loon Mountain | Summit | 2823 | Valley | 45 06 46 N | 115 52 21 W |
| North McElroy Lateral | Canal | 817 | Canyon | 43 24 12 N | 116 33 16 W |
| North Meadow Camp | Locale | 1033 | Idaho | 45 55 00 N | 115 53 47 W |
| North Meadow Creek | Stream | | Idaho | 45 54 30 N | 115 54 09 W |
| North Middleton Drain | Canal | 732 | Canyon | 43 42 38 N | 116 36 31 W |
| North Moody Creek | Stream | | Madison | 43 41 45 N | 111 33 11 W |
| North Nampa Lateral | Canal | 788 | Canyon | 43 30 49 N | 116 31 28 W |
| North Park | Locale | 750 | Elmore | 42 57 04 N | 115 58 27 W |
| North Park | Park | 678 | Kootenai | 47 43 46 N | 116 56 51 W |
| North Parks Lewisville Canal | Canal | 1464 | Jefferson | 43 41 57 N | 111 59 55 W |
| North Peak | Summit | 2116 | Idaho | 46 12 57 N | 115 02 26 W |