You can go to the more options tab under the search button. There, you can search by areas within a zip code, county, city or within a radius of a particular address. For example, if you want to search within a radius of a particular school, type in the name of the school. A drop down list of schools containing that name will appear. Choose the one you want. Then press search. A map will open up. Choose the bigger map option you see. Now, once on the bigger map, look at the top right corner and there is green outlined polygon. (It is easy to miss since it kind of blends in.) Click on that. The option to draw a polygon will open up. As your cursor travels across the screen, it will have turned into a + sign. Click on any spot and you anchor your first point of the polygon. Then drag to the next point, click again, and so on. To close the polygon and stop dragging lines around, double click. Then the homes for sale within the polygon will appear.
While you are at it, click on the little i in the blue circle you can see in these various steps. One reminds you that being near a school does not necessarily mean you will go to that school or even within the district that school serves. To know which school district a home is served by, go to http://www.USgeocoder.com
type in the street address and zip code. Then when the map comes up, open the + signs on the left and read down the opened columns till you get to the school district information for that address. To see the district outline, click the the drop down above the map. Choose to label school districts. Then refresh.
I am the designer of http://www.USgeocoder.com.
Please let me know what you think of it. I used my realtor experience to inform the design. It is the core technology of several products and services of http://www.OnlineImage.biz,
which is my wife's company. I spend most of my time as a realtor. Please let me know if you have any other questions or would like realtor assistance in your search for a new home.