根據地(di)區生(sheng)(sheng)產總值(zhi)(zhi)(zhi)統一(yi)初步核(he)算(suan)，2020年嘉興(xing)市(shi)生(sheng)(sheng)產總值(zhi)(zhi)(zhi)（GDP）5509.52億(yi)元，比上年增長(chang)3.5%。其中，第(di)(di)一(yi)產業(ye)增加(jia)值(zhi)(zhi)(zhi)124.18億(yi)元，增長(chang)1.8%；第(di)(di)二產業(ye)增加(jia)值(zhi)(zhi)(zhi)2861.09 億(yi)元，增長(chang)2.8%；第(di)(di)三產業(ye)增加(jia)值(zhi)(zhi)(zhi)2524.25億(yi)元，增長(chang)4.3%。三次產業(ye)增加(jia)值(zhi)(zhi)(zhi)結構為(wei)2.3:51.9:45.8。

2020年(nian)(nian)(nian)嘉興市完成農林(lin)牧漁業增(zeng)(zeng)(zeng)加值(zhi)(zhi)134.56億(yi)(yi)元(yuan)，比(bi)(bi)上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)長2.1%。2020年(nian)(nian)(nian)，嘉興市工業增(zeng)(zeng)(zeng)加值(zhi)(zhi)2560.40億(yi)(yi)元(yuan)，比(bi)(bi)上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)長3.9%，占全(quan)市生(sheng)產總(zong)(zong)(zong)(zong)值(zhi)(zhi)的46.5%。2020年(nian)(nian)(nian)，嘉興市固(gu)定資產投資比(bi)(bi)上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)長3.0%。2020年(nian)(nian)(nian)，嘉興市社(she)會消費品零售(shou)總(zong)(zong)(zong)(zong)額2141.11億(yi)(yi)元(yuan)，比(bi)(bi)上(shang)年(nian)(nian)(nian)下降(jiang)2.3%。2020年(nian)(nian)(nian)，嘉興市外(wai)(wai)貿進(jin)出口總(zong)(zong)(zong)(zong)額3052.32億(yi)(yi)元(yuan)，進(jin)出口總(zong)(zong)(zong)(zong)額首(shou)次邁上(shang)3000億(yi)(yi)元(yuan)大關，比(bi)(bi)上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)長7.8%。2020年(nian)(nian)(nian)嘉興市接待海內外(wai)(wai)游客1.01億(yi)(yi)人次，旅游總(zong)(zong)(zong)(zong)收入1172.60億(yi)(yi)元(yuan)，分別比(bi)(bi)上(shang)年(nian)(nian)(nian)下降(jiang)16.0%和 17.6%。