* Specific model: Two-door, four-door, different trim levels (Sahara, Rubicon, etc.) all have slightly different body shapes affecting drag.
* Modifications: A lift kit, larger tires, aftermarket bumpers, roof racks, etc., all significantly increase drag.
* Testing methodology: Different wind tunnels and testing procedures can yield slightly different results.
While you won't find a precise number readily available, you can expect the Cd of a stock 2005 Jeep Wrangler to be in the range of 0.50 to 0.60. This is relatively high compared to more aerodynamic vehicles, reflecting its boxy design. Keep in mind that any modifications will likely increase this value.
