Pioneer Irrigation District is a non-profit irrigation district, providing irrigation water to 34,000+ acres of land in parts of Canyon County and Western Ada County, Idaho. Established in 1901, Pioneer is proud to be a part of the Treasure Valley's rich agricultural history. We are continually looking for the best ways to manage present and future agricultural and residential water needs.

For a map of Pioneer Irrigation District, please click here.

​​​BOARD MEETINGS

Notice To Control Noxious Weeds - Please read the notice here.

Treasure Valley storage water rights are potentially at stake. Click here to learn about the issue at hand, who is affected, what the status is, and how you can help.

Board of Director meetings are typically held on the 7th of each month, unless there is a conflict. They are held at Pioneer's office at 3804 S. Lake Ave. in Caldwell, ID. The next regularly scheduled Board Meetings:​  

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February 9th, 2026    10:00 a.m.

March 9th, 2026        10:00 a.m.

​April 7th, 2026           10:00 a.m.

 Board of Corrections meeting is held in September of every year. If you would like to be on the agenda to address the Board, please call the District Secretary/Treasurer at (208) 459-3617.

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•  Pioneer Irrigation District accepts: Visa, Discover, Mastercard, Paypal, Venmo, Apple pay, Google pay, and eChecks online (fees do apply).
  
•  Pay by phone 1-844-743-1628 or online at www.pioneerirrigation.com, where you can set up auto pay, text reminders, and view your invoices. We have a drop box for payments at the front door, accessible during business hours.
  
•  Mail payments:  PO Box 426 Caldwell, ID 83606.
  

• Pay by due dates: 1st half December 20th and 2nd Half June 20th. Call the District Office for updated amounts if you miss your payment deadline.

District Map

History of Pioneer Irrigation

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2025 Season

To learn the history of Pioneer Irrigation District please click here.