The shooting happened around 12:18 a.m. Friday on the 500 block of East Clearfield Street.
She was hit in an arm and a leg.
The woman was hospitalized in stable condition.
Authorities say the suspect was seen fleeing into a house on the 3100 block of Hartville Street, but escaped by the time they searched the property.
Police believe the shooting stemmed from an argument.
A gun was recovered at the scene, but there is no word on the suspect's whereabouts
Anyone with information can call or text Philadelphia police at 215-686-TIPS (8477).