年度,給水人口（人）,給水戸数（戸）,年間総配水量(立方メートル),普及率（％）
2016,45538,19429,5520188,97.9
2017,45105,19470,5453524,97.9
2018,44799,19541,5373108,97.9
2019,44401,19547,5508560,97.9
2020,43883,19531,5485843,97.8
2021,43210,19542,5498412,97.8
2022,42584,19510,5503142,97.8
2023,41750,19463,5535620,97.7
2024,41007,19424,5520291,97.7