How many gallons of water, or HCF, does a typical family use in a month?

Your usage depends on the number of people in your household and your lifestyle. Refer to the chart below for estimated usage by household size.

Household Size Gallons HCF( hundreds of cubic feet)
1 person 748 to 2,244 1 to 3
2 person 2,992 to 5236 4 to 7
3 person 5,984 to 7,480 8 to 10
4 person 8,228 to 9,724 11 to 13
5 person 10,472 to 11,968 14 to 16
6 person 12,716 to 14,212 17 to 19

Also consider your lifestyle: You will use more water compared to a household with the same number of people if:

  • You take more showers or baths
  • You take longer showers or baths
  • You do outside watering or fill a pool
  • You do more loads of wash
  • You do more dishwasher loads
  • You have more company
  • Your family includes a teenager or a baby
  • Your appliances and toilets are older and less efficient
  • You have not installed low flow shower heads or taken other conservation measures
  • You have internal plumbing leaks that have not been fixed