I live near CSUN and quite a few of my friends went there. As @aunt_bea mentioned, it’s considered a commuter school with solid education opportunities. It’s got one of the best Deaf Studies programs in the nation, for instance. My son had planned on going there until he switched to city planning. Even with planned tuition increases, the Cal State system offers a great return on investment.
If your daughter wants to live in the dorms or near campus, the area is safe. Northridge is technically part of the City of Los Angeles, but has it’s own identity too. (Lots of LA neighborhoods are like that.) Not sure if this is priority, but Metrolink has a station there and it’s served by a decent bus network. (My city-planning son cared a lot about it. 
) Of course everything is easier with a car in the valley.