初步核算，2020年(nian)三(san)亞市生產(chan)(chan)總值(zhi)(zhi)（GDP）695.41億元，按可比(bi)價(jia)格計(ji)算，比(bi)上(shang)年(nian)增(zeng)(zeng)長3.1%。其中，第一(yi)產(chan)(chan)業增(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)79.16億元，增(zeng)(zeng)長2.2%；第二(er)產(chan)(chan)業增(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)113.30億元，增(zeng)(zeng)長3.0%；第三(san)產(chan)(chan)業增(zeng)(zeng)加(jia)(jia)值(zhi)(zhi)502.95億元，增(zeng)(zeng)長3.2%。三(san)次(ci)產(chan)(chan)業結構調整(zheng)為11.4:16.3:72.3。

2020年(nian)三(san)亞市(shi)(shi)(shi)(shi)農林牧漁業(ye)(ye)總產值121.00億(yi)(yi)元，按可(ke)比(bi)(bi)(bi)價計(ji)算，比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)增(zeng)長2.7%。全(quan)(quan)市(shi)(shi)(shi)(shi)規上(shang)(shang)(shang)(shang)工業(ye)(ye)總產值為(wei)72.24億(yi)(yi)元，比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)增(zeng)長0.3%。全(quan)(quan)市(shi)(shi)(shi)(shi)建(jian)筑(zhu)業(ye)(ye)增(zeng)加(jia)值94.20億(yi)(yi)元，增(zeng)長6.0%。全(quan)(quan)市(shi)(shi)(shi)(shi)固定資產投資比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)增(zeng)長5.3%。全(quan)(quan)市(shi)(shi)(shi)(shi)房地產開發投資比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)增(zeng)長13.3%。全(quan)(quan)市(shi)(shi)(shi)(shi)客運量(liang)1541萬(wan)(wan)人次，比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)下降(jiang)36.2%；貨運量(liang)472萬(wan)(wan)噸，比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)下降(jiang)3.8%。全(quan)(quan)市(shi)(shi)(shi)(shi)郵政行(xing)業(ye)(ye)業(ye)(ye)務收入(ru)（不含(han)郵政儲蓄銀行(xing)直接營(ying)業(ye)(ye)收入(ru)）累(lei)計(ji)完(wan)成51497.86萬(wan)(wan)元，比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)增(zeng)長19.7%；業(ye)(ye)務總量(liang)累(lei)計(ji)完(wan)成35613.58萬(wan)(wan)元,增(zeng)長30.8%。全(quan)(quan)市(shi)(shi)(shi)(shi)社(she)會(hui)消(xiao)費品零(ling)售總額381.05億(yi)(yi)元，比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)增(zeng)長12.1%。全(quan)(quan)市(shi)(shi)(shi)(shi)接待過夜游客人數1714.40萬(wan)(wan)人次，比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)下降(jiang)25.3%。全(quan)(quan)年(nian)旅(lv)游總收入(ru)424.74億(yi)(yi)元，比(bi)(bi)(bi)上(shang)(shang)(shang)(shang)年(nian)下降(jiang)26.9%。