Now, families receiving Medi-Cal coverage are eligible. This includes undocumented and immigrant households.
It was previously only offered to CalWORKs and CalFresh recipients.
The city says the average monthly diaper bill for a child under 3 years old can range from $80 to $100 a month.
The San Francisco Diaper Bank has supplied free diapers to more than 5,800 infants and toddlers. Most state and federal safety net programs for families do not currently recognize diapers as a necessity.
In a recent survey of participants, 94% said their children are healthier.
Ninety percent of families said they had more money for food.