根據地區(qu)生產總值(zhi)(zhi)統(tong)一(yi)核算(suan)結果，2021年定海區(qu)實現(xian)地區(qu)生產總值(zhi)(zhi)(GDP)為605.32億元(yuan)，按(an)可比(bi)價格計算(suan)，同比(bi)增(zeng)長6.0%。其(qi)中，第一(yi)產業增(zeng)加(jia)值(zhi)(zhi)13.84億元(yuan)，同比(bi)增(zeng)長9.6%；第二產業增(zeng)加(jia)值(zhi)(zhi)216.77億元(yuan)，同比(bi)增(zeng)長10.1%；第三(san)產業增(zeng)加(jia)值(zhi)(zhi)374.72億元(yuan)，同比(bi)增(zeng)長3.7%。三(san)次產業比(bi)例為2.3:35.8:61.9。按(an)戶籍人口計算(suan)，人均地區(qu)生產總值(zhi)(zhi)150739元(yuan)，約23365美(mei)元(yuan)，同比(bi)增(zeng)長5.6%。

2021年定海區(qu)(qu)農林牧漁(yu)業(ye)(ye)總(zong)產(chan)值23.68億(yi)元(yuan)，同(tong)比增長(chang)11.6%。全(quan)(quan)(quan)(quan)年全(quan)(quan)(quan)(quan)區(qu)(qu)156家規模以上工業(ye)(ye)企(qi)業(ye)(ye)實(shi)(shi)現(xian)產(chan)值482.23億(yi)元(yuan)，同(tong)比增長(chang)22.5%。年末區(qu)(qu)本級具(ju)有資質等級的總(zong)承(cheng)包(bao)和(he)專業(ye)(ye)承(cheng)包(bao)建筑(zhu)業(ye)(ye)企(qi)業(ye)(ye)94家，實(shi)(shi)現(xian)建筑(zhu)業(ye)(ye)總(zong)產(chan)值120.21億(yi)元(yuan)，同(tong)比增長(chang)12.7%。全(quan)(quan)(quan)(quan)年全(quan)(quan)(quan)(quan)區(qu)(qu)全(quan)(quan)(quan)(quan)社會(hui)消費品零售(shou)總(zong)額239.27億(yi)元(yuan)，同(tong)比增長(chang)8.1%。全(quan)(quan)(quan)(quan)年全(quan)(quan)(quan)(quan)區(qu)(qu)完成(cheng)外(wai)貿進出口總(zong)額1224.27億(yi)元(yuan)，同(tong)比增長(chang)65.5%。全(quan)(quan)(quan)(quan)區(qu)(qu)實(shi)(shi)現(xian)金融業(ye)(ye)增加值63.18億(yi)元(yuan)，同(tong)比增長(chang)7.1%。全(quan)(quan)(quan)(quan)年全(quan)(quan)(quan)(quan)區(qu)(qu)共接待國內外(wai)游客176.97萬(wan)人次，實(shi)(shi)現(xian)旅游總(zong)收入23.19億(yi)元(yuan)。