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Ada County, ID Short-Term Rentals: Night Caps (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Annual night cap
Prohibited by state law
Rental-day limits
Cannot be imposed
Year-round operation
Allowed
Statute
Idaho Code 67-6539(2)(a)(xi)
Applies to
County and all cities

Summary

Ada County cannot limit how many nights per year a short-term rental operates. Idaho Code 67-6539 prohibits imposing a limit on the days a property can be rented, so no annual night cap applies.

These county ordinances apply to unincorporated areas of Ada County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Imposing a limit on the days a property can be rented.

Full Breakdown

Idaho Code 67-6539(2)(a)(xi) lists 'imposing a limit on the days a property can be rented' among the STR-specific restrictions that counties and cities may not enforce. Ada County and cities like Boise, Meridian and Eagle therefore cannot set an annual maximum number of rental nights or days. STRs may operate year-round, subject only to generally applicable residential, safety, nuisance and tax rules. This distinguishes Idaho from states where cities cap non-hosted rentals at, for example, 90 or 180 nights per year.

Violations & Fines

No night-cap ordinance may be enforced; operation is limited only by the generally applicable zoning, safety, nuisance and tax rules that apply to all dwellings.

Frequently Asked Questions

Is there a maximum number of nights per year?
No. Idaho Code 67-6539 bars imposing a limit on the days a property can be rented, so Ada County STRs may operate year-round.
Can a city inside Ada County cap rental nights?
No. The statewide preemption prevents any Idaho city or county from setting an annual night or day cap on short-term rentals.

Sources & Official References

Other rules in Ada County

All Ada County rules

Compare Ada County to another location·View the Idaho short-term rentals overview

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Night Caps in Cities Across Ada County