Katie lives in the Juniper Hollow district of San Fierro, at the north-west corner of the city, just south-east of the Gant Bridge and the nearest home to it. Although she actually lives there, it is possible that she doesn't like her neighborhood. When Katie decides to do a driving date with Carl, awkwardly when starting (in front of her house), she will say that she doesn't like that place and sometimes says that she doesn't want to live there.
She is a nurse in an ER unit in an unnamed hospital. She has had the job for three years, as she says to Carl during dates. She likes to spend her spare time at the karate dojo in Garcia, San Fierro, San Andreas.
When dating Katie, sometimes she will call the Epsilon followers "nutjobs!", and that they freak her out. Inside some safehouses, a picture of Katie posing with a man in front of the Greenglass College. The College is one of the spawnpoints for the Backpacker, an Epsilon member. Therefore it is suggested that her run-in with the Epsilonists at the College, may have contributed or caused her disdain for the cult.