根據(ju)地區(qu)生產(chan)總值(zhi)(zhi)統一(yi)核算結果，2020年衡(heng)陽市(shi)實現地區(qu)生產(chan)總值(zhi)(zhi)（GDP）3508.50億(yi)元，按可比(bi)(bi)價計(ji)算，比(bi)(bi)上年增(zeng)長(chang)(chang)4.0%。其中，第(di)一(yi)產(chan)業增(zeng)加值(zhi)(zhi)441.67億(yi)元，增(zeng)長(chang)(chang)3.9%；第(di)二產(chan)業增(zeng)加值(zhi)(zhi)1159.32億(yi)元，增(zeng)長(chang)(chang)5.1%；第(di)三產(chan)業增(zeng)加值(zhi)(zhi)1907.50億(yi)元，增(zeng)長(chang)(chang)3.3%。全市(shi)三次產(chan)業結構為(wei)(wei)12.6:33.0:54.4。工(gong)業增(zeng)加值(zhi)(zhi)占地區(qu)生產(chan)總值(zhi)(zhi)的比(bi)(bi)重(zhong)為(wei)(wei)23.8%；第(di)一(yi)、二、三產(chan)業對經濟增(zeng)長(chang)(chang)的貢獻率(lv)分別為(wei)(wei)10.3%、48.0%和(he)41.7%。

2020年(nian)(nian)衡陽市(shi)(shi)農(nong)林牧漁業(ye)實(shi)(shi)現總(zong)(zong)(zong)產(chan)值(zhi)782.11億(yi)元(yuan)，增(zeng)(zeng)(zeng)長(chang)(chang)4.1%。全(quan)(quan)市(shi)(shi)規模工業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)增(zeng)(zeng)(zeng)長(chang)(chang)5.4%。全(quan)(quan)市(shi)(shi)資質以上總(zong)(zong)(zong)承(cheng)包和專業(ye)承(cheng)包建筑(zhu)業(ye)企業(ye)建筑(zhu)業(ye)總(zong)(zong)(zong)產(chan)值(zhi)676.09億(yi)元(yuan)，增(zeng)(zeng)(zeng)長(chang)(chang)9.6%；全(quan)(quan)市(shi)(shi)建筑(zhu)業(ye)增(zeng)(zeng)(zeng)加(jia)值(zhi)324.16億(yi)元(yuan)，增(zeng)(zeng)(zeng)長(chang)(chang)5.3%。全(quan)(quan)年(nian)(nian)固定資產(chan)投資（不(bu)含農(nong)戶）比上年(nian)(nian)增(zeng)(zeng)(zeng)長(chang)(chang)9.4%。全(quan)(quan)年(nian)(nian)社(she)會(hui)消(xiao)費品零售(shou)總(zong)(zong)(zong)額1594.34億(yi)元(yuan)，比上年(nian)(nian)下降2.6%。全(quan)(quan)年(nian)(nian)進出口總(zong)(zong)(zong)額302.4億(yi)元(yuan)，比上年(nian)(nian)下降18.0%。全(quan)(quan)市(shi)(shi)民用(yong)車輛保有量(liang)達到111.87萬輛，增(zeng)(zeng)(zeng)長(chang)(chang)6.3%。全(quan)(quan)市(shi)(shi)郵電業(ye)務總(zong)(zong)(zong)量(liang)（按不(bu)變價計算）505.42億(yi)元(yuan)，增(zeng)(zeng)(zeng)長(chang)(chang)33.3%。全(quan)(quan)市(shi)(shi)接待國內外游(you)客(ke)6479.77萬人(ren)次，比上年(nian)(nian)下降15.8%。實(shi)(shi)現旅游(you)總(zong)(zong)(zong)收入573.26億(yi)元(yuan)，下降15.7%。