Gross Regional Domestic Product (GRDP) is an important indicator for measuring the economic condition of a province, district or city. In general, the economy in West Java in 2022 will experience growth of 4.61%. The economic growth of each region in West Java is of course different. This study aims to determine the classification of regions in West Java based on GRDP per capita at constant prices by district/city in 2022 and data on the growth rate of GRDP on the basis of constant prices by district/city in 2022 using Fuzzy Mamdani. The results showed that there were 6 regions which were developed region group. These areas include Purwakarta Regency, Karawang Regency, Bekasi Regency, Bandung City, Cirebon City, and Cimahi City. There were 5 regions which were underdeveloped region group. These areas include Tasikmalaya Regency, Subang Regency, Cirebon Regency, Indramayu Regency, and Banjar City. Other areas were developing regions group. These areas include Bogor Regency, Sukabumi Regency, Cianjur Regency, Bandung Regency, Garut Regency, West Bandung Regency, Pangandaran Regency, Ciamis Regency, Kuningan Regency, Majalengka Regency, Sumedang Regency, Bogor City, Sukabumi City, Bekasi City, Kota Depok, and Tasikmalaya City.