自來水供水普及率（％） 本頁資料JSON| 縣市 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 |
|---|
| 南投縣 | 79.42620458 | 77.44661219 | 77.29130235 | 77.3052944 | 77.74565299 | 78.18141107 | 78.58948428 | 78.69511959 | 78.92246896 | 79.18316261 | 78.8428086 | 78.52998357 | 78.42261311 | 78.25622075 | 77.85007959 | 77.95414735 | 78.13480066 |
| 嘉義市 | 98.98156244 | 99.00456039 | 99.03186905 | 99.04773632 | 99.06646709 | 98.97772206 | 99.43848695 | 99.46301265 | 99.50837849 | 99.57960267 | 99.66251876 | 99.68962357 | 99.69822681 | 99.73851491 | 99.75886734 | 99.81578015 | 99.83535327 |
| 嘉義縣 | 88.37631886 | 88.385034 | 88.41927424 | 88.41426074 | 88.50734538 | 87.98237005 | 88.45874641 | 88.9881727 | 89.06834272 | 89.02175589 | 88.93483328 | 88.98954933 | 89.02085235 | 89.21166222 | 89.45482957 | 89.57974714 | 89.7262297 |
| 基隆市 | 98.66454865 | 98.71911028 | 98.38115466 | 98.51010062 | 98.96819517 | 99.22216387 | 99.22719499 | 99.28240841 | 99.3067662 | 99.34067116 | 99.3647472 | 99.30624406 | 99.32028927 | 99.32987126 | 99.33899505 | 99.35371845 | 99.36233003 |
| 宜蘭縣 | 86.46234003 | 87.67365442 | 87.97255291 | 88.20671577 | 88.49036968 | 88.58521213 | 89.1763973 | 90.15568063 | 91.15102101 | 91.32446275 | 91.60298719 | 92.10831302 | 92.7485309 | 93.20504247 | 93.53372802 | 93.95601759 | 94.1184933 |
| 屏東縣 | 40.88947218 | 41.55134954 | 41.69074141 | 41.6707721 | 42.07484622 | 42.66927942 | 43.66245686 | 44.02115106 | 44.28097553 | 43.66885763 | 45.13086011 | 44.97824708 | 44.91379024 | 45.17569682 | 45.78555777 | 46.88520051 | 47.69700336 |
| 彰化縣 | 89.31037053 | 90.49784014 | 90.58984488 | 91.07240977 | 90.96171569 | 90.70814308 | 91.17889186 | 91.58057372 | 91.94872528 | 92.30070438 | 92.31530883 | 92.31386389 | 92.35140589 | 92.41365761 | 92.61963522 | 92.87831218 | 93.11507626 |
| 新北市 | 96.07364847 | 96.33127186 | 96.51864853 | 96.68178288 | 96.69191854 | 96.87014913 | 96.92513603 | 97.09054328 | 97.16192451 | 97.20862082 | 97.2485282 | 97.28909636 | 97.33963981 | 97.40019727 | 97.47760074 | 97.48291309 | 97.57238673 |
| 新竹市 | 96.46645688 | 96.7794606 | 97.05134364 | 96.805752 | 96.35767971 | 97.2000303 | 97.92712237 | 97.76012818 | 97.64741347 | 98.21293871 | 98.82280676 | 98.84082831 | 98.83759005 | 98.85704627 | 98.91288749 | 98.9271453 | 98.93098882 |
| 新竹縣 | 69.1609421 | 70.17546286 | 71.77204222 | 71.70109792 | 71.86129686 | 72.49018588 | 73.38703809 | 76.61913804 | 76.68138907 | 77.82223827 | 78.75685761 | 79.30539733 | 79.76141049 | 80.35916784 | 81.04077726 | 81.56068209 | 82.3417592 |
| 桃園市 | 92.33239087 | 93.65964009 | 93.8926491 | 92.45815142 | 93.0147389 | 92.68773239 | 93.19627486 | 93.68627401 | 94.64660486 | 95.14953219 | 95.107179 | 94.67192445 | 94.68762175 | 94.83366902 | 95.06241131 | 95.10700222 | 95.17710491 |
| 澎湖縣 | 92.48627924 | 92.63253682 | 92.81532136 | 91.88992934 | 92.55565411 | 92.13684108 | 92.36667829 | 92.55911514 | 93.00430354 | 93.05119602 | 93.0799074 | 93.12025777 | 93.14575208 | 93.197608 | 93.21752678 | 93.26294821 | 93.31256511 |
| 臺中市 | 88.46978264 | 88.16261464 | 88.20103915 | 88.77210004 | 89.57797404 | 90.07539441 | 90.71651574 | 91.154032 | 91.62622091 | 91.93802809 | 92.08474463 | 92.13684397 | 92.23600948 | 92.82699931 | 93.118236 | 93.49522386 | 94.02268888 |
| 臺北市 | 99.46 | 99.48 | 99.47908047 | 99.47657417 | 99.56454856 | 99.5689606 | 99.5831414 | 99.58216999 | 99.59961888 | 99.59916616 | 99.62095723 | 99.61870472 | 99.68847994 | 99.69226335 | 99.74121155 | 99.74249176 | 99.76486827 |
| 臺南市 | 98.17458079 | 98.22408004 | 98.22225793 | 98.40416006 | 98.66006383 | 98.66330652 | 98.67709348 | 98.68782643 | 98.69511785 | 98.7625709 | 98.78497529 | 98.77775799 | 98.84651141 | 98.87733356 | 98.90829567 | 98.95253206 | 98.9967542 |
| 臺東縣 | 75.85631579 | 75.95732059 | 75.9706007 | 76.04001439 | 75.69282479 | 75.70313208 | 76.3679781 | 77.16568387 | 77.61541298 | 77.90379183 | 78.38032513 | 78.40144174 | 78.61041388 | 78.9298699 | 79.24968619 | 79.35735541 | 78.92725086 |
| 花蓮縣 | 78.91452912 | 79.90277942 | 80.44877414 | 80.45811989 | 80.32281331 | 81.13320385 | 81.62818739 | 82.2195924 | 82.54894976 | 82.6887114 | 82.92520055 | 82.96858319 | 83.22958634 | 83.64911322 | 83.97714729 | 84.29785233 | 84.28876518 |
| 苗栗縣 | 67.34100433 | 68.94234411 | 69.80380666 | 70.28806364 | 70.90782965 | 72.28986117 | 73.24357925 | 73.90506908 | 74.59650777 | 75.22364026 | 75.33266595 | 75.42795295 | 76.04248371 | 77.06037259 | 77.361448 | 78.39746514 | 79.09975103 |
| 連江縣 | - | - | 94.63834843 | 97.13026777 | 96.81615885 | 96.58187599 | 96.37781814 | 96.81005317 | 96.75045984 | 97.87854414 | 98.78011276 | 98.64905736 | 98.51166533 | 98.53552345 | 97.93987622 | 94.96095356 | 95.73004958 |
| 金門縣 | - | - | 96.600535 | 93.92710418 | 93.89306501 | 93.53590345 | 93.94315502 | 94.32568598 | 94.41372188 | 94.49642537 | 94.48622443 | 94.48738313 | 94.47537077 | 94.48417932 | 94.48948378 | 94.48360988 | 94.49981601 |
| 雲林縣 | 95.18795186 | 95.18855169 | 95.19188343 | 94.9840094 | 94.95703402 | 93.71736162 | 94.15097208 | 93.7864263 | 93.53731692 | 93.40487162 | 93.56796016 | 93.60233538 | 93.68357688 | 93.71359781 | 93.90034473 | 94.05319642 | 94.08979296 |
| 高雄市 | 93.80629098 | 93.78514829 | 93.82412806 | 94.02456236 | 95.76246836 | 95.87699099 | 96.2631687 | 96.56133911 | 96.51455402 | 96.50626234 | 96.58363595 | 95.12163434 | 95.22459665 | 95.30699557 | 95.40886449 | 95.4848362 | 95.61096254 |