A novel soybean variety, designated XBP30004 is provided. Also provided are the seeds of soybean variety XBP30004, cells from soybean variety XBP30004, plants of soybean XBP30004, and plant parts of soybean variety XBP30004. Methods provided include producing a soybean plant by crossing soybean variety XBP30004 with another soybean plant, methods for introgressing a transgenic, mutant trait, and/or native trait into soybean variety XBP30004, methods for producing other soybean varieties or plant parts derived from soybean variety XBP30004. Soybean seed, cells, plants, germplasm, breeding lines, varieties, and plant parts produced by these methods and/or derived from soybean variety XBP30004 are further provided.