Individual water use is really a drop in the bucket. While per capita water use is about 1400 gallons per day in the U.S., the amount used directly by an individual is only a small part of that.
There are many regional differences in the amount of water used. In the West, most of the water is used for irrigation, while in the East more water is used by industry. Residential water use is affected not only by water conservation equipment, like low flow showerheads, but by personal actions, like the amount of time you spend in the shower.
The following questions will give you an idea about how you are doing at conserving water. Most of the questions deal with the type of water fixtures and appliances you have. Choose the answer that best describes your household.