Go To Search
City GovernmentDepartmentsDoing BusinessOur CommunityHow Do I?Explore Nampa
Click to Home
2017 Rate Increase

Residential Rate Increase
Commercial Rate Increase
2017 Water Rate Increase Display Boards

Two years ago, the City of Nampa conducted an extensive study to evaluate the cost of domestic water delivery and what needed to be done to maintain the city’s aging water system. Domestic water includes all water consumed in your home or business whether it is for drinking, preparing food, bathing, washing clothes and dishes, brushing teeth or any other household water use.

After mailings, open houses and a public hearing, the Nampa City Council in January 2016 approved a water rate increase, effective March 1, 2016. At that same time, the City Council indicated it would revisit this issue in 2017 and 2018, because the study recommended similar increases for domestic water rates in the next two years. Annual increases of 4.5 percent are likely, beginning in 2019, so customers don’t have large increases later on. 

Why Three Years of Large Increases? 
These increases were recommended after an extensive water rate study that found serious deficiencies in our water delivery system.  Nampa’s aging water system has worked silently for years without significant pipe replacement but now it is time to reinvest. Without reinvestment, we could be headed for a water crisis characterized by unplanned outages, emergency repairs and even higher costs.  Emergency repairs can cost 15 times more than planned replacement because they frequently require overtime staff hours, result in property damage, and can occur under newly paved roadways.  

Current funding barely covers operations and basic maintenance costs.  An additional $33.4 million will be needed over the next 10 years to fund replacement of old pipes and valves along with improvements to pumps, wells and reservoirs.

Rates are different for residential and commercial properties. Please note that some residential customers live in either non-single family or even commercial or industrial zones -- and those rates are higher.  If you have questions about your water bill, call (208) 468-5711 or send an email to:

Public Open Houses:

  • Wednesday, Jan.  4, 2017, at Nampa Civic Center, 311 3rd St., S., Nampa. Drop by anytime from 5 to 7 p.m.
  • Thursday, Jan. 5, 2017, at Snake River Elementary School, 500 Stampede Drive, Nampa. Drop by anytime from 5 to 7 p.m.


At the open house, city staff will present information about the planned improvements and your domestic water bill increase.  You can talk with city staff, ask questions and provide comments. Open house display boards can also be viewed online here and comments can be sent to or 468-4434.

The rate increases are not automatic they must be approved by City Council.  The rate increase public hearing will be held on Tuesday, Jan. 17, at Nampa City Hall Council Chambers, 411 3rd St. S., Nampa, Idaho.  Public hearings start at 7 p.m., attendees will have the opportunity to provide up to 3 minutes of public testimony regarding the proposed domestic water rate increase.

2016 Rate Increases

2016 Domestic Water Rate Increase
2016 Irrigation Rate Increase