經初步核算，2021年(nian)海(hai)門區實現地區生(sheng)產(chan)總(zong)值1569.33億(yi)元(yuan)，比上年(nian)增(zeng)長9.4%。其中，第一產(chan)業(ye)增(zeng)加(jia)(jia)值72.64億(yi)元(yuan)，增(zeng)長4.5%；第二產(chan)業(ye)增(zeng)加(jia)(jia)值769.69億(yi)元(yuan)，增(zeng)長8.6%；第三(san)產(chan)業(ye)增(zeng)加(jia)(jia)值727.00億(yi)元(yuan)，增(zeng)長10.7%。三(san)次(ci)產(chan)業(ye)結構調整為(wei)4.6：49.1：46.3。全區人均地區生(sheng)產(chan)總(zong)值158119元(yuan)，增(zeng)長9.3%。

2021年(nian)(nian)(nian)海門區糧食總產量25.18萬(wan)(wan)噸，比(bi)(bi)上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)(zeng)加0.01萬(wan)(wan)噸。全(quan)(quan)(quan)區規模(mo)以上(shang)工業增(zeng)(zeng)(zeng)(zeng)加值同比(bi)(bi)增(zeng)(zeng)(zeng)(zeng)長(chang)12.9%。年(nian)(nian)(nian)末全(quan)(quan)(quan)區擁有(you)資(zi)質以上(shang)建筑業企業529家。建筑企業全(quan)(quan)(quan)年(nian)(nian)(nian)完成建筑業總產值2233億元，增(zeng)(zeng)(zeng)(zeng)長(chang)2.1%。全(quan)(quan)(quan)年(nian)(nian)(nian)固定(ding)資(zi)產投資(zi)比(bi)(bi)上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)(zeng)長(chang)2.1%。全(quan)(quan)(quan)年(nian)(nian)(nian)房(fang)地產開發投資(zi)129.00億元。全(quan)(quan)(quan)年(nian)(nian)(nian)實現社會消(xiao)費品零售總額(e)506.43億元，增(zeng)(zeng)(zeng)(zeng)長(chang)16.9%。全(quan)(quan)(quan)年(nian)(nian)(nian)進出口總額(e)322.47億元，同比(bi)(bi)增(zeng)(zeng)(zeng)(zeng)長(chang)27.3 %。全(quan)(quan)(quan)年(nian)(nian)(nian)接待游(you)客320.6萬(wan)(wan)人(ren)次(ci)，其中(zhong)，國際旅游(you)者人(ren)數2660人(ren)次(ci)。旅游(you)總收入(ru)達29.80億元，其中(zhong)，旅游(you)外匯收入(ru)達208萬(wan)(wan)美(mei)元。全(quan)(quan)(quan)年(nian)(nian)(nian)實現一(yi)般(ban)公共預算(suan)收入(ru)79.01億元，增(zeng)(zeng)(zeng)(zeng)長(chang)7.5%。全(quan)(quan)(quan)年(nian)(nian)(nian)一(yi)般(ban)公共預算(suan)支(zhi)出134.32億元，比(bi)(bi)上(shang)年(nian)(nian)(nian)增(zeng)(zeng)(zeng)(zeng)長(chang)0.7%。