Havertown is not usually considered part of the Main Line, but is just to the south east of it. All of Havertown (as well as the southern sections of Bryn Mawr, Haverford and Ardmore) is served by the Haverford School District. Houses in this community are often on smaller lots and many are older, though there are several newer construction homes where others have been razed (beware of high taxes on these). Twins (often known as duplexes elsewhere) are very common.
The location is very good in terms of access to center city and the airport by car, but beware, the train from there is NOT the Paoli Thorndale line and it takes a rather convoluted route. Havertown has lower home prices, which reflect a lower average household income than the Main Line communities. It is very family friendly with many people who were born and raised there later settling there as well.
There are some clusters of shops on Darby Rd., Eagle Rd. and a small stretch of Haverford Rd., but Havertown is mostly residential (which is why the property taxes are relatively high). Among locals, some favorite establishments include the new YMCA, The Skatium (ice skating), the Llanerch Diner and the Head Nut, a store selling every kind of coffee, tea, spice, nut, dried fruit, flavored extract and candy.
For more information about Havertown, click here.
Read more about Havertown on Wikipedia.