10 verified public fairgrounds campgrounds in Idaho — every price checked against the fairgrounds itself and stamped with its verification date.
Blackfoot, ID PUBLIC CAMPING
$30 incl; dump fee (dump alone $5)
Water+power 30/50A, no sewer at sites
✓ Verified Oct 23, 2026
Bonners Ferry, ID PUBLIC CAMPING
$0 FREE
Dry only; paved lot, no designated sites
✓ Verified Oct 23, 2026
Coeur d'Alene, ID PUBLIC CAMPING
$54/night FLAT; official wins
Full hookup, all sites
✓ Verified Oct 24, 2026
Filer, ID PUBLIC CAMPING
$45 full / $25 dry; 28-day $795/$689
80 FHU (30/50A) + 100 W/30A + dry
✓ Verified tfcfair.com
Jerome, ID PUBLIC CAMPING
$20
Water+electric, some 50A-only
✓ Verified
Lewiston, ID PUBLIC CAMPING
$40 incl; tax
Full hookup
✓ Verified Oct 23, 2026
Moscow, ID PUBLIC CAMPING
$40/night in season; WINTER: $30/night electric-only; The $17/$23 figures are DEAD
5 FHU (15/30/50A) + 14 electric-only (2025 reviews); FREE dry camping area, summer only, max 4 nights per 12 months per vehicle; Dump station $5/use, open to the public; no showers/restrooms for RV patrons
✓ Verified Oct 24, 2026
Pocatello, ID PUBLIC CAMPING
$35
Water+electric all sites (sites 2-18 = 50A, rest 30A), no sewer
✓ Verified Oct 24, 2026
Rupert, ID PUBLIC CAMPING
$25
Water + 30A electric
✓ Verified hipcamp.com (Country Flare)
Sandpoint, ID PUBLIC CAMPING
Price not published — call ahead
Water+electric 50/30/20A, no sewer
✓ Verified bonnercountyfair.com
These fairgrounds offer RV camping only during fairs and events — not as a standing public campground.