Based on the graph of percentage water used per sector in South Africa (Gauteng) for 2024:

Based on the graph of percentage water used per sector in South Africa (Gauteng) for 2024:

Agriculture is by far the largest consumer of water, accounting for $55\%$ of the total usage. Industries and Municipal service usage follow, consuming $18\%$ and $17\%$ respectively, indicating significant demand from urban and industrial areas. Mining and Forestry sectors use the least amount of water, both at $5\%$. This distribution highlights the critical role of agriculture in water demand and the need for efficient water management strategies in this sector.