The source states the following: "The WIQI is calculated by categorizing the quality of infrastructure according to five levels (namely: no service, minimum, basic, intermediate and full service) that are each categorized by numerical values between 1 and 5 based on the level of service, one being the lowest (no service) and five the highest (piped water in the dwelling)."
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Water service infrastructure quality index in South Africa 2011-2022, by metropolitan
As of 2022, water service in the metropolitan municipality of the city of Cape Town had the highest index of infrastructure quality, with a score of ****. On the other hand, the metropolitan municipality of Mangaung had the lowest index, with a score of ****. According to the source, the water infrastructure quality index (WIQI) rates infrastructure based on the quality of service provided to households.
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Statistics South Africa. (October 30, 2024). Water service infrastructure quality index in South Africa in 2011 and 2022, by metropolitan [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 01, 2026, from /statistics/1538658/water-service-infrastructure-quality-index-in-south-africa-by-metropolitan/
Statistics South Africa. "Water service infrastructure quality index in South Africa in 2011 and 2022, by metropolitan." Chart. October 30, 2024. ÌÇÐÄÆƽâ°æ. Accessed August 01, 2026. /statistics/1538658/water-service-infrastructure-quality-index-in-south-africa-by-metropolitan/
Statistics South Africa. (2024). Water service infrastructure quality index in South Africa in 2011 and 2022, by metropolitan. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 01, 2026. /statistics/1538658/water-service-infrastructure-quality-index-in-south-africa-by-metropolitan/
Statistics South Africa. "Water Service Infrastructure Quality Index in South Africa in 2011 and 2022, by Metropolitan." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 30 Oct 2024, /statistics/1538658/water-service-infrastructure-quality-index-in-south-africa-by-metropolitan/
Statistics South Africa, Water service infrastructure quality index in South Africa in 2011 and 2022, by metropolitan ÌÇÐÄÆƽâ°æ, /statistics/1538658/water-service-infrastructure-quality-index-in-south-africa-by-metropolitan/ (last visited August 01, 2026)
Water service infrastructure quality index in South Africa in 2011 and 2022, by metropolitan [Graph], Statistics South Africa, October 30, 2024. [Online]. Available: /statistics/1538658/water-service-infrastructure-quality-index-in-south-africa-by-metropolitan/
