S.W.
My husband and I lived and worked in Arlington for 4 years, he was a police officer there and I worked with juvenile offenders. I now work in the Tarrant County schools. Stay away from the east side (the housing is cheaper- but there is high crime) also stay away from Division street. The best side is anywhere in West Arlington, Green Oaks and Arkansas, Little Road area. The best schools include Boles Jr. High, Ousley Jr. High and any of the elementary schools that feed into them. South Arlington/Mansfield area are also great, but there is a lot of traffic in that area both in the morning going out and evening coming in.
We had a GREAT realtor- Kecia Hardin ###-###-#### Her husband is a canine officer for Arlington police, she has two kids, and knows the area very well, listens to what you want, and matches what you want, need, can afford- everything all in one.
Good luck and if you want more info on the schools, feel free to email me. ____@____.com