據比(bi)(bi)利(li)(li)時(shi)(shi)(shi)(shi)統計(ji)局官(guan)方(fang)數(shu)據,至2021年1月1日,比(bi)(bi)利(li)(li)時(shi)(shi)(shi)(shi)人(ren)(ren)(ren)口有(you)11521238名(ming)居(ju)民(min),與(yu)去(qu)年相(xiang)比(bi)(bi),比(bi)(bi)利(li)(li)時(shi)(shi)(shi)(shi)人(ren)(ren)(ren)口增(zeng)加(jia)(jia)了(le)28597人(ren)(ren)(ren),即0.25%。而(er)據聯(lian)(lian)合國(guo)(guo)“人(ren)(ren)(ren)口時(shi)(shi)(shi)(shi)鐘(zhong)”數(shu)據預測(ce),截至2022年5月,比(bi)(bi)利(li)(li)時(shi)(shi)(shi)(shi)總人(ren)(ren)(ren)口11664245人(ren)(ren)(ren)(約1166.42萬(wan)(wan)(wan)人(ren)(ren)(ren)),在世界235個(ge)國(guo)(guo)家/地區的(de)(de)人(ren)(ren)(ren)口排名(ming)中(zhong)第(di)81位(wei),在歐洲(zhou)48個(ge)國(guo)(guo)家中(zhong)排名(ming)第(di)11位(wei)。比(bi)(bi)利(li)(li)時(shi)(shi)(shi)(shi)的(de)(de)人(ren)(ren)(ren)口將(jiang)逐年增(zeng)加(jia)(jia),據聯(lian)(lian)合國(guo)(guo)預測(ce),比(bi)(bi)利(li)(li)時(shi)(shi)(shi)(shi)人(ren)(ren)(ren)口預計(ji)到(dao)2030年將(jiang)達到(dao)1190萬(wan)(wan)(wan),到(dao)2050年將(jiang)進一步(bu)增(zeng)加(jia)(jia)到(dao)1222萬(wan)(wan)(wan),到(dao)2100年將(jiang)達到(dao)1249萬(wan)(wan)(wan)。此外,比(bi)(bi)利(li)(li)時(shi)(shi)(shi)(shi)約3.05萬(wan)(wan)(wan)平方(fang)公(gong)里(li),約為重(zhong)慶市(shi)的37%,2021年人(ren)口密度達到377人(ren)/km2。