根據地(di)(di)區(qu)生產(chan)總值(zhi)統一核(he)算結果，2020年衡(heng)陽市(shi)實現地(di)(di)區(qu)生產(chan)總值(zhi)（GDP）3508.50億元(yuan)，按可比(bi)價計算，比(bi)上年增(zeng)長(chang)4.0%。其(qi)中，第一產(chan)業增(zeng)加(jia)值(zhi)441.67億元(yuan)，增(zeng)長(chang)3.9%；第二產(chan)業增(zeng)加(jia)值(zhi)1159.32億元(yuan)，增(zeng)長(chang)5.1%；第三(san)產(chan)業增(zeng)加(jia)值(zhi)1907.50億元(yuan)，增(zeng)長(chang)3.3%。全(quan)市(shi)三(san)次產(chan)業結構(gou)為12.6:33.0:54.4。工業增(zeng)加(jia)值(zhi)占地(di)(di)區(qu)生產(chan)總值(zhi)的(de)比(bi)重為23.8%；第一、二、三(san)產(chan)業對經(jing)濟增(zeng)長(chang)的(de)貢(gong)獻率分別為10.3%、48.0%和41.7%。

2020年(nian)(nian)衡(heng)陽市(shi)農林牧漁業(ye)(ye)實現總(zong)產值782.11億元(yuan)(yuan)，增(zeng)長4.1%。全(quan)(quan)(quan)市(shi)規(gui)模工業(ye)(ye)增(zeng)加值增(zeng)長5.4%。全(quan)(quan)(quan)市(shi)資(zi)質以上(shang)總(zong)承(cheng)包(bao)和專業(ye)(ye)承(cheng)包(bao)建筑(zhu)業(ye)(ye)企業(ye)(ye)建筑(zhu)業(ye)(ye)總(zong)產值676.09億元(yuan)(yuan)，增(zeng)長9.6%；全(quan)(quan)(quan)市(shi)建筑(zhu)業(ye)(ye)增(zeng)加值324.16億元(yuan)(yuan)，增(zeng)長5.3%。全(quan)(quan)(quan)年(nian)(nian)固(gu)定資(zi)產投(tou)資(zi)（不含農戶）比(bi)上(shang)年(nian)(nian)增(zeng)長9.4%。全(quan)(quan)(quan)年(nian)(nian)社會消費(fei)品零售總(zong)額1594.34億元(yuan)(yuan)，比(bi)上(shang)年(nian)(nian)下(xia)(xia)(xia)降2.6%。全(quan)(quan)(quan)年(nian)(nian)進出口總(zong)額302.4億元(yuan)(yuan)，比(bi)上(shang)年(nian)(nian)下(xia)(xia)(xia)降18.0%。全(quan)(quan)(quan)市(shi)民用車輛保(bao)有量(liang)達到111.87萬(wan)輛，增(zeng)長6.3%。全(quan)(quan)(quan)市(shi)郵電業(ye)(ye)務總(zong)量(liang)（按不變價計算）505.42億元(yuan)(yuan)，增(zeng)長33.3%。全(quan)(quan)(quan)市(shi)接待國內(nei)外游客(ke)6479.77萬(wan)人次，比(bi)上(shang)年(nian)(nian)下(xia)(xia)(xia)降15.8%。實現旅(lv)游總(zong)收入573.26億元(yuan)(yuan)，下(xia)(xia)(xia)降15.7%。