The link Jeanette posted is the best way to find the districting lines for the elementary schools. If you are very particular about which elementary school your are looking for, make sure to verify it by calling the school district. There are several streets were the district line runs right down the middle.
Aside from calling the School District directly, you can use the school district website link below. Copy & Paste into your browser -
Call me if you have any problems. I'm a lifelong resident of Haverford Twp and can help you also! If you already know the school, I can give you the boundaries. If you know the address, I can give you the school. Whichever is easier for you!
Jeanette DiLuco, REALTOR SFR