A shekara ta 2014, kimanin biliyan daya manya ko ~ 22% na yawan mutanen duniya suna da hauhawar jini. An kiyasta cewa mutane miliyan 43 (24% na yawan jama'a a Amurka) suna da hauhawar jini ko kuma suna shan magungunan antihypertensive. Yana da yawa a cikin ƙasashe masu tsada, matsakaici, da ƙananan ƙasashe. A shekara ta 2004 yawan hauhawar jini ya kasance mafi girma a Afirka, (30% ga duka jinsi) kuma mafi ƙasƙanci a cikin Amurka (18% ga duka jinsi biyu). Yawan ya bambanta sosai a cikin yankuna tare da ƙananan ƙananan kashi 3.4% (maza) da 6.8% (mata) a yankunan karkara na Indiya da kuma mafi girma kamar 68.9% (maza) da 72.5% (mata) a Poland. A Afirka yawan ya kasance kusan 45% a shekara ta 2016. A Turai, hauhawar jini yana faruwa a kusan 30-45% na mutane a shekara ta 2013. A shekara ta 1995, an kiyasta cewa mutane miliyan 43 (24% na yawan jama'a a Amurka) suna da hauhawar jini ko shan magungunan antihypertensive.
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