McKinney as a whole is a very family friendly area (as is Frisco, and other surrounding towns). The Downtown McKinney area has had alot of updates in the recent past and the area may suit you & your families needs. While Realtors aren't able to provide our personal opinion on the safety of any given neighborhood, we can certainly point you in the direction of finding specific information for yourself.
if you are concerned about crime in a particular part of town, you can contact the McKinney police department and they can give you crime statistics. They can be reached at 972-547-2700 or on-line at www.McKinneyPolice.org.
if you are concerned about the schools in particular neighborhood, you can see each campuses test scores, ethnic breakdown, poverty level breakdown, etc in the Texas Education Agency school reports. You can find those at: www.tea.state.tx.us/perfreport/aeis/2007/index.html (if you need assistance with this website please let me know & I will be happy to help).
Another good tip for deciding if a neighborhood is right for you is to visit the area personally, go to the grocery store or library in that area and the people you see will be the neighbhors in that immediate area.
Even though we as Realtors can't give our opinions on the area, I hope this information has been helpful in your search. If you would like to speak in depth about more specific information, or if you need further assistance, please feel free to call anytime.
Coldwell Banker Jane Henry Realtors
North Texas Top Realtors