Idaho Department of Water Resources

IDWR manages water in the State of Idaho via water allocation and distribution processes. Here you will find information pertaining to the recording, processing, changing, storing and adjudications of all water rights. Want to know how water is distributed in the 70 active water districts in Idaho? Read below for more answers!

  • About Water Rights
    • Water rights authorize the use of public water by private individuals and organizations. Water right are real property rights much like property rights in land. Get answers to frequently asked questions and search for records here.
  • Adjudication
    • An adjudication is a court action for the determination of existing water rights, which results in a decree that confirms and defines each water right. The purpose is to catalog and confirm through the court all water rights and to which property those water rights belong.
  • Water Districts & Other Water-Related Districts
    • Water districts and other water-related districts are government entities with authority to raise assessments for purpose of making local improvements or to assist state agencies in performing certain statutory functions.
  • Ground Water Management & Critical Ground Water Areas
    • The IDWR Director is granted authority for designating areas for regulating ground water withdrawals from aquifers subject to insufficient supplies based on ground water level trends.

Regional Offices

We have divided the state into four regions to better serve the public. Each region has a full service regional office where you can receive assistance with water management and adjudication matters.

Western Regional Office
2735 Airport Way
Boise, ID 83705-5082
Phone: (208) 334-2190
Fax: (208) 334-2348

Northern Regional Office
7600 Mineral Drive, Suite 100
Coeur d'Alene, ID 83815-7763
Phone: (208) 762-2800
Fax: (208) 762-2819

Southern Regional Office
650 Addison Ave W, Ste 500
Twin Falls, ID 83301-5858
Phone: (208) 736-3033
Fax: (208) 736-3037

Eastern Regional Office
900 North Skyline Drive, Suite A
Idaho Falls, ID 83402-1718
Phone: (208) 525-7161
Fax: (208) 525-7177

Contact Idaho Department of Water Resources

Gary Spackman
The Idaho Water Center
322 East Front Street, PO Box 83720
Boise, Idaho  83720-0098
Phone: (208) 287-4800
Fax: (208) 287-6700


Service Area

Statewide service provider in:
  • Idaho

Office Locaters

To request additions or corrections to this entry email the Administrator