It was a show about a young city girl (orphan, i think), that ends up living with distant relatives in a farm.
Just judging by that small bit of information, it sounds to me like it could be Caitlyn's Way
It is about a delinquent girl that gets sent to her mother's cousin's house in Montana on their ranch instead of going to a juvenile detention center.
It aired on Nickelodeon around 2000 and lasted until about 2002. Caitlyn is a ward of the state due to her mother dying when she was 8 and her father nowhere to be found.