Water restrictions in Ada County, ID — also called the watering schedule, outdoor irrigation rules, or drought ordinance — set which days and hours you can run sprinklers or irrigation.
Ada County itself sets no residential watering schedule. In the Treasure Valley, outdoor irrigation typically comes from irrigation districts (Nampa-Meridian, Settlers, Pioneer, Boise Project), whose seasons and allotments govern how much water you get.
This is the arid west: Ada County has no county-wide day-of-week or time-of-day watering restriction. Most Treasure Valley homes water lawns with gravity or pressurized irrigation delivered through local irrigation districts rather than city drinking water. Districts such as Nampa-Meridian, Settlers, Pioneer and the Boise Project Board of Control run a defined season (roughly April into fall) and set allotments; the Boise Project allots about 2.5 acre-feet per acre. Culinary (potable) water customers of city utilities like Boise or Suez/Veolia may face utility-imposed conservation measures during drought. Check your specific irrigation district and water provider.
No county fine for watering; irrigation districts and city water utilities enforce their own season limits, assessments and any drought-conservation rules.
Other ordinances people look up for this city. Green dot = verified primary-source excerpt.
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Ada County parks are day-use only and close at sunset. Overnight camping and parking is prohibited on any Ada County owned or leased park property except whe...
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Ada County limits light spilling onto neighbors. In commercial or industrial settings, the effective zone of light from bright fixtures may not trespass onto...
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Ada County's outdoor-lighting standards regulate glare and up-lighting to protect nighttime skies. Fixtures over 260 lumens must have an opaque top to preven...
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Garage-sale signs fall under Ada County's content-neutral temporary-sign rules. No permit is needed: residential lots may have up to six temporary signs, eac...
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Ada County's sign code is content-neutral, so it does not single out political signs. Temporary signs, including yard signs, are allowed without a permit: in...
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Ada County's zoning code treats a tiny home as a manufactured home. A tiny home used as a second unit must meet the secondary-dwelling standards of Section 8...
See how Ada County's water restrictions rules stack up against other locations.
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