These often are plants native to your area because they aren't watered when they grew wild. Investigate the branch of landscaping science called Xeriscaping which deals with this. Consider the climate when you plant in your yard. Plants adapted to local conditions require less water and less attention. Consider shrubs, succulents and trees as a substitute for some of your lawn.
Nothing requires more water than a lawn.
When you're ready to reseed or resod your lawn, consider grasses that require less water.