A trade-off paradigm was used to examine priorities in residential water use. A total of 426 participants allocated either a small or large budget to various household water uses. A comparison of allocations across budget conditions revealed which water uses were regarded as most important, as well as the amount of water regarded as sufficient for each use. Further analyses focused on the perceived importance of outdoor water use, which accounts for the majority of the water used in residences. Data indicated that indoor uses, especially those related to health and sanitation, were consistently higher priorities for participants in this study. The finding that residents are more willing to curtail outdoor water use than indoor water use has important implications for behavior change campaigns. Individual difference variables of environmental orientation and duration of residence in the desert accounted for some of the variance in water choices.