A plumbing fixture replacement program in low-income (LI) housing has produced significant water savings for Seattle Public Utilities (SPU), and considerable dollar savings for program participants. The program has focused on the local public housing authorities, as well as non-profit low-income housing providers. The program has provided cost-effective water savings for the utility, and has provided the housing providers with extremely attractive paybacks on their investments. The low-income water conservation program has concentrated on the replacement of toilets, showerheads, bathroom faucet aerators and clothes washers. 9,753 toilets, showerheads, and bathroom aerators have been replaced, in addition to 529 clothes washers. Combined, these efforts have resulted in over 368,000 gallons per day of water savings. For the participants who have completed projects, this totals over $1,100,000 in annual water and sewer utility savings. Factoring in the rebate, most housing providers have recovered their portion of the project costs in less than one year. Working with the low-income housing providers has provided water savings that exceed those of local single-family and market-rate multifamily housing programs. Reasons for this may include the LI program emphasis on multifamily buildings, the age of the buildings receiving conservation services, and the fact that few of the tenants pay directly for water costs. The program also offers an opportunity to educate both the tenants and building owners about appropriate water costs and use. Seattle Public Utilities has used a number of readily-available tools to evaluate the savings potential of the LI buildings prior to any conservation work being completed. These tools include billing analysis to compare actual use to optimal (efficient) use, and time-of-use metering devices to analyze water flow and identify leaks. Such tools have helped to provide information to housing providers in order for them to make decisions to proceed with projects. Includes tables.