I would suggest you employ a knowlegable realtor and find out about Walnut Creek one house and neighborhood at a time. Each property and neighborhood is unique. Overall Walnut Creek has a lot to offer families and individuals.
Good luck to you,
Due to federal Fair Housing laws, Realtors aren't allowed to issue opinions that "steer" a buyer to or from any market areas or neighborhoods. Buyers are allowed to determine for themselves which areas / neighborhoods are suitable and inform the Realtor of the areas they wish to consider, or not.
If you visit http://www.crimereports.com, you can type in an address and city and view the recent crime activity.
All communities have pockets that are better than others and conversely worse than others. I have lived in Walnut Creek for 10 years and by and large our community remains a dynamic, safe, fun place to live. I can show you areas that continue to exceed my clients expectations. Thank you for your question!