Grace Bible Baptist Christian school is a small school, near Catonsville. The address is: 1518 N ROLLING ROAD, BALTIMORE, MD 21228. Archbishop Spaulding is a good school, a little farther from you in Severn, 8080 New Cut Road. Our Lady of Mount Carmel is in Baltimore, 1706 Old Eastern Avenue. Saint Frances Academy is also in Baltimore, 501 East Chase Street. Towson Catholic is another, 114 Ware Avenue. I don't know of any co-ed that are in Catonsville/Arbutus so you may end up having to travel a bit. Good luck!