Ka kammala wannan magana: Da dawowar gwamnatin tsakiya mai ƙarfi, daular ta zama mai wadata sosai. Yawan jama'a yana ƙaruwa (ƙididdigar Constantinople a ƙarni na 12 ya bambanta daga 100,000 zuwa 500,000), kuma garuruwa da birane a fadin masarautar sun bunƙasa. A wannan lokacin, adadin kuɗin da ake amfani da shi ya ƙaru sosai. An nuna wannan a Constantinople ta hanyar gina fadar Blachernae, ƙirƙirar sababbin ayyukan fasaha, da wadataccen wadata a wannan lokacin: karuwar cinikayya, wanda ya yiwu ta hanyar ci gaban biranen Italiya, na iya taimakawa ci gaban tattalin arziki. Tabbatacce ne cewa Venetians da sauransu sun kasance 'yan kasuwa masu aiki a Constantinople, suna rayuwa daga jigilar kayayyaki tsakanin Masarautun Crusader na Outremer da Yamma, yayin da kuma ke cinikayya sosai da Byzantium da Masar. Mutanen Venetians suna da masana'antu a gefen arewa na Golden Horn, kuma yawancin mutanen yamma sun kasance a cikin birnin a cikin karni na 12. Zuwa ƙarshen mulkin Manuel I Komnenos, yawan baƙi a cikin birni ya kai kusan mutane 60,000<unk>80,000 daga cikin yawan jama'a kusan mutane 400,000. A shekara ta 1171, Constantinople kuma ta ƙunshi ƙaramar al'umma ta Yahudawa 2,500. A shekara ta 1182, yawancin mazaunan Latin (Yammacin Turai) na Constantinople
aka yanka su.