Idaho Development Impact Fees by City (2026)
Across 11 tracked Idaho jurisdictions, the median single-family home pays about $19,153 in total development impact and connection fees, ranging from $9,343 in Twin Falls to $32,492 in Star — all normalized per dwelling unit so you can compare them directly.
11
Jurisdictions
$19,153
Median per home
impact + connection
$32,492
Highest
Star
$9,343
Lowest tracked
Twin Falls
Idaho jurisdictions ranked by fee burden
Total fees per single-family detached home, highest first.
| # | Jurisdiction | Per single-family home | Total / home | / MF unit |
|---|---|---|---|---|
| 1 | Star Ada County | $32,492 | ||
| 2 | Eagle Ada County | $28,857 | ||
| 3 | Coeur d'Alene Kootenai County | $26,918 | ||
| 4 | Post Falls Kootenai County | $25,120 | ||
| 5 | Meridian Ada County | $19,244 | ||
| 6 | Kuna Ada County | $19,153 | ||
| 7 | Boise Ada County | $19,123 | ||
| 8 | Caldwell Canyon County | $14,197 | ||
| 9 | Nampa Canyon County | $13,760 | ||
| 10 | Idaho Falls Bonneville County | $9,359 | ||
| 11 | Twin Falls Twin Falls County | $9,343 |
How development impact fees work in Idaho
Idaho impact fees fall under the Idaho Development Impact Fee Act. School impact fees are not permitted in Idaho, so growth-related school costs are funded through bonds rather than builder fees.
Transportation impact fees are often levied by a separate highway district (for example, the Ada County Highway District in the Boise metro) and collected at the city building permit, so a builder pays both city and district charges.
Idaho impact fees — FAQ
- Which Idaho city has the highest development impact fees?
- Star currently has the highest total at about $32,492 per single-family home among the Idaho jurisdictions in ImpactFeeAtlas.
- What's the typical impact fee for a home in Idaho?
- The median total across tracked Idaho jurisdictions is about $19,153 per single-family home (impact + water/sewer connection fees).