All property used exclusively for fire protection purposes and belonging to any city, village, or incorporated town is exempt.
All property of a corporation or an association which maintains a fire patrol and salvage corps for the public benefit is exempt if the property is:
If a portion of the property of the corporation or association is used exclusively for fire protection purposes, the property shall be exempt only to the extent of the value of that portion, and the remaining portion shall be subject to taxation.
35 ILCS 200/15-70