Where fiber is being built in Idaho
As of Dec 31, 2025, FCC filings show fiber at 44.3% of Idaho's 918,136 homes, and the number of fiber homes grew 3.1% from June 30, 2025.
Fiber was filed in 122 of 150 Idaho cities and towns with 250 or more homes. In 78 of them it reached more than half of homes, and in the typical one it reached 68.5%.
Nationally, fiber was filed at 55.8% of homes. FCC Broadband Data Collection, residential units, 25/3 Mbps or faster. Filed by the providers themselves. How this is computed
Idaho counties
Pick a county for its full set of measures, grants and providers. Shares are of residential units, FCC filing as of Dec 31, 2025; growth is from June 30, 2025.
| County | Homes | Fiber share | Cable, no fiber | Fiber home growth |
|---|---|---|---|---|
| Ada County | 243,974 | 38.6% | at least 57.4% | +7.9% |
| Adams County | 3,088 | 50.4% | at least 3% | +96.2% |
| Bannock County | 41,250 | 50.4% | at least 39.7% | +12.1% |
| Bear Lake County | 5,424 | 32.9% | at least 36.9% | -2.4% |
| Benewah County | 5,774 | 30.6% | at least 8.3% | +2.2% |
| Bingham County | 20,967 | 31.9% | at least 33.9% | +263.2% |
| Blaine County | 17,366 | 5.8% | at least 81.2% | +8.8% |
| Boise County | 6,348 | 10.6% | at least 5.5% | +13.3% |
| Bonner County | 31,251 | 31.8% | at least 7.5% | +5.1% |
| Bonneville County | 55,429 | 38.1% | at least 51.6% | -46.3% |
| Boundary County | 6,788 | 33% | at least 0.8% | -1% |
| Butte County | 1,600 | 60.2% | none filed | +22.1% |
| Camas County | 940 | 32.3% | none filed | no data |
| Canyon County | 99,077 | 45.5% | at least 39.2% | +15.4% |
| Caribou County | 4,106 | 6.6% | at least 49.2% | +3.8% |
| Cassia County | 11,293 | 72.4% | at least 0.8% | +2.8% |
| Clark County | 558 | 68.1% | none filed | no data |
| Clearwater County | 5,716 | 33.9% | at least 7.3% | +1.8% |
| Custer County | 3,770 | 65.1% | none filed | -2.1% |
| Elmore County | 13,937 | 21.7% | at least 47.4% | -1.7% |
| Franklin County | 6,268 | 44.5% | at least 17.1% | +231.5% |
| Fremont County | 10,407 | 51.7% | at least 7.9% | +18.2% |
| Gem County | 9,081 | 1.6% | at least 65.6% | +0.1 points (small June base) |
| Gooding County | 7,085 | 0.2% | at least 51.9% | no change (small June base) |
| Idaho County | 11,382 | 4.1% | at least 12.7% | +26.9% |
| Jefferson County | 11,600 | 28.1% | at least 35.8% | -11.4% |
| Jerome County | 9,762 | 49% | at least 14.6% | -1.4% |
| Kootenai County | 92,979 | 69.9% | at least 15.6% | +3.3% |
| Latah County | 20,464 | 52.8% | at least 17.7% | +6% |
| Lemhi County | 5,549 | 19.8% | at least 26.7% | +3.6% |
| Lewis County | 2,535 | none filed | none filed | no change (small June base) |
| Lincoln County | 2,242 | 17.1% | at least 28.7% | +16.5 points (small June base) |
| Madison County | 18,200 | 86.8% | at least 8.4% | +16.5% |
| Minidoka County | 10,612 | 87.5% | at least 0.3% | -0.9% |
| Nez Perce County | 21,873 | 80.7% | at least 2.2% | -0.6% |
| Oneida County | 2,627 | 90.1% | none filed | -1.5% |
| Owyhee County | 5,914 | 13.6% | at least 17.3% | -64% |
| Payette County | 11,653 | 41.5% | at least 39.4% | -1% |
| Power County | 3,886 | 64.5% | at least 0.4% | -5.8% |
| Shoshone County | 8,483 | 54.2% | at least 19.2% | +14.9% |
| Teton County | 7,434 | 74.5% | none filed | +4.6% |
| Twin Falls County | 39,363 | 56.3% | at least 28.8% | +0.9% |
| Valley County | 14,351 | 12.6% | at least 44.6% | +11.3 points (small June base) |
| Washington County | 5,730 | 16.4% | at least 46.7% | +4.4% |
The 30 largest places in Idaho
By number of homes. Search above for any of the other 206 cities and towns.
| City or town | Homes | Fiber share | Cable, no fiber | Fiber home growth |
|---|---|---|---|---|
| Boise City | 117,463 | 31.5% | at least 66.8% | +3.1% |
| Meridian | 55,452 | 62.1% | at least 36% | +18.5% |
| Nampa | 43,249 | 65.7% | at least 32.9% | +16% |
| Idaho Falls | 29,698 | 34.6% | at least 65% | -65.7% |
| Coeur d'Alene | 28,539 | 92.7% | at least 7.2% | +0.5% |
| Pocatello | 27,118 | 57.4% | at least 42.3% | +14.8% |
| Caldwell | 24,389 | 53.1% | at least 46.6% | +13.1% |
| Twin Falls | 22,969 | 76.3% | at least 23.4% | +2.2% |
| Post Falls | 20,074 | 86.6% | at least 12.7% | +2.8% |
| Lewiston | 16,965 | 99.7% | at least 0.2% | -0.3% |
| Eagle | 16,826 | 23.6% | at least 75% | +6.2% |
| Rexburg | 12,348 | 87.2% | at least 11% | +11.8% |
| Moscow | 11,535 | 75.5% | at least 23.1% | +7% |
| Kuna | 11,063 | 36% | at least 61.8% | +0.6% |
| Garden City | 8,003 | 41% | at least 55.4% | -0.3% |
| Hayden | 7,918 | 89.4% | at least 10.2% | -0.4% |
| Star | 7,254 | 55.3% | at least 43.3% | +0.5% |
| Ammon | 7,011 | 7.5% | at least 92.1% | -70.7% |
| Mountain Home | 6,910 | 33.7% | at least 65.6% | -1.2% |
| Chubbuck | 6,559 | 71.3% | at least 28.6% | +4.3% |
| Blackfoot | 5,782 | 62.6% | at least 36.5% | +59.4 points (small June base) |
| Burley | 5,402 | 99.6% | at least 0.4% | -2% |
| Sandpoint | 5,329 | 92.8% | at least 6.5% | -0.6% |
| Rathdrum | 4,881 | 94.7% | at least 4.7% | -3.6% |
| Jerome | 4,733 | 96.2% | at least 3.8% | -1.8% |
| Hailey | 4,613 | 1.5% | at least 90.9% | +0.2 points (small June base) |
| McCall | 4,326 | 5.2% | at least 92% | +2.4 points (small June base) |
| Middleton | 4,118 | 26.4% | at least 72.4% | +0.7% |
| Ketchum | 4,027 | 1% | at least 96.1% | +0.5 points (small June base) |
| Payette | 3,813 | 9% | at least 90.6% | +2.6 points (small June base) |
The data
Every number on this page traces to one cell in the download. Source: FCC Broadband Data Collection, Fixed Broadband Summary by Geography, filings as of June 30, 2025 and Dec 31, 2025. Census figures: ACS 5-year estimates, 2020 to 2024. Grants: FCC Broadband Funding Map and the state broadband office.
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Figures come from provider filings with the FCC, which providers report themselves and which can be challenged. Nothing on this page is a promise of territory, earnings or service at any address.