2021年(nian)，吳(wu)江區實現(xian)地(di)區生產(chan)總值2224.53億元，按可比價計算(suan)，比上年(nian)同期增(zeng)長(chang)8.0%。其中(zhong)，第(di)一產(chan)業(ye)(ye)實現(xian)增(zeng)加(jia)值37.34億元，增(zeng)長(chang)1.5%；第(di)二產(chan)業(ye)(ye)實現(xian)增(zeng)加(jia)值1160.01億元，增(zeng)長(chang)10.8%，其中(zhong)工業(ye)(ye)實現(xian)增(zeng)加(jia)值1072.71億元，增(zeng)長(chang)11.8%；第(di)三產(chan)業(ye)(ye)實現(xian)增(zeng)加(jia)值1027.18億元，增(zeng)長(chang)5.3%。三次產(chan)業(ye)(ye)結構比為(wei)1.7:52.1:46.2，第(di)二產(chan)業(ye)(ye)占(zhan)比較(jiao)去年(nian)提升2.2個百分點。

2021年(nian)吳江區(qu)實現農(nong)林牧漁(yu)業(ye)(ye)(ye)總(zong)產(chan)值63.42億(yi)元(yuan)(yuan)，按可比(bi)價計算，同(tong)比(bi)增(zeng)(zeng)(zeng)(zeng)(zeng)長(chang)(chang)(chang)(chang)2.4%。全(quan)年(nian)全(quan)部工(gong)業(ye)(ye)(ye)總(zong)產(chan)值首(shou)超5000億(yi)元(yuan)(yuan)，其中，完成規模以(yi)上工(gong)業(ye)(ye)(ye)總(zong)產(chan)值4390.40億(yi)元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)(zeng)長(chang)(chang)(chang)(chang)19.0%。全(quan)區(qu)資(zi)質(zhi)以(yi)上建(jian)筑業(ye)(ye)(ye)企業(ye)(ye)(ye)172家（指(zhi)具有資(zi)質(zhi)等級的總(zong)承包(bao)和專(zhuan)業(ye)(ye)(ye)承包(bao)建(jian)筑業(ye)(ye)(ye)企業(ye)(ye)(ye)，不含勞務分包(bao)企業(ye)(ye)(ye)），全(quan)年(nian)完成建(jian)筑業(ye)(ye)(ye)總(zong)產(chan)值162.83億(yi)元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)(zeng)長(chang)(chang)(chang)(chang)18.0%。全(quan)年(nian)完成全(quan)社會固定(ding)資(zi)產(chan)投資(zi)646.07億(yi)元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)(zeng)長(chang)(chang)(chang)(chang)10.1%。全(quan)年(nian)實現房地產(chan)開(kai)發投資(zi)334.59億(yi)元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)(zeng)長(chang)(chang)(chang)(chang)5.8%。全(quan)年(nian)實現社會消費品零售總(zong)額720.12億(yi)元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)(zeng)長(chang)(chang)(chang)(chang)16.6%。全(quan)年(nian)實現進出(chu)口總(zong)額264.80億(yi)美元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)(zeng)長(chang)(chang)(chang)(chang)22.2%。全(quan)年(nian)實現旅游(you)(you)總(zong)收(shou)入282.21億(yi)元(yuan)(yuan)，增(zeng)(zeng)(zeng)(zeng)(zeng)長(chang)(chang)(chang)(chang)71.8%，國(guo)內旅游(you)(you)接(jie)待人數達2402.58萬人次(ci)，接(jie)待入境過夜旅游(you)(you)人數0.67萬人次(ci)，旅游(you)(you)外匯收(shou)入900萬美元(yuan)(yuan)。