This article intends to uncover the ongoing challenges that South African municipalities are confronted with in realizing SDG 6 (clean water and sanitation) and also explore common good governance principles for sustainable development. To realize SDG 6, good governance principles should be promoted and pragmatically implemented. This is a conceptual article which assesses secondary data covering SDG 6 challenges and good governance principles. Existing literature was systematically reviewed from Google Scholar, online newsletters, and other databases from May–July 2022. Secondary data was analyzed using a Thematic Content Analysis (TCA) approach. The theoretical findings of this article show that there is growing concern about attaining SDG 6 due to the bad or weak governance practices in SA. In SA, progress on good governance has been encouraging, but challenges remain. Thus, this article recommends good and inclusive governance because, without it, SA will not achieve its socio-economic goals, like SDG 6. If SA is to achieve its development goals, it must establish mechanisms that promote constitutionalism, accountability, democracy, and good governance. Weak governance, which is characterized by corruption, bribery, mismanagement, and lack of public involvement, transparency, and accountability, should be addressed. SA should have sound governance that is responsive to community needs and fights toward the achievement of the localized SDGs.