I recommend you contact the Springfield Police Department PAR officer who is assigned to the area and get the most up-to-date condition of the area. Also here links to three maps to offer you assistance:
Springfield Police Department interactive reported Crime Map: http://classic.crimereports.com/map?search=springfield%2C+MO
I lived there and there if you check out the public websites you will see there is an area there who have criminal records. However, I ALWAYS felt safe. I took walk walks by myself at night. I knew and trusted 3 of my neighbors well enough to visit them in their homes regularly even though I never met them before and only lived there 1 year. I loved living there.