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ZIP 77056

Water quality in Houston, TX (77056)

Drinking water in ZIP 77056 (Houston, Harris County) comes from 100 public water system s on EPA's records. The list below is ranked by population served: the largest regional authority for your area appears first, smaller subdivisions and private systems below.

Combined population served: 4,166,765 people.

Public water systems serving ZIP 77056

Ranked by population served. Tier badges show how EPA records each utility's service area: "Serves your city" means EPA's geographic-areas table specifically lists Houston; "Serves your county" means the utility serves Harris County (regional authorities are usually filed this way); "Billing address at this ZIP" means the utility files paperwork from this ZIP but EPA does not confirm it serves you.

  1. CITY OF HOUSTON

    HOUSTON · PWSID TX1010013

    Serves 3.0M people

    Serves your county
  2. CITY OF PASADENA

    PASADENA · PWSID TX1010293

    Serves 152k people

    Serves your county
  3. CLEAR LAKE CITY WATER AUTHORITY

    HOUSTON · PWSID TX1010056

    Serves 90k people

    Serves your county
  4. CITY OF BAYTOWN

    BAYTOWN · PWSID TX1010003

    Serves 86k people

    Serves your county
  5. CITY OF HOUSTON UD 5 - KINGWOOD

    HOUSTON · PWSID TX1010348

    Serves 80k people

    Serves your county
  6. HARRIS COUNTY MUD 165

    HOUSTON · PWSID TX1012187

    Serves 41k people

    Serves your county
  7. CITY OF LA PORTE

    LA PORTE · PWSID TX1010018

    Serves 37k people

    Serves your county
  8. CITY OF DEER PARK

    DEER PARK · PWSID TX1010007

    Serves 34k people

    Serves your county
  9. CITY OF KATY

    KATY · PWSID TX1010017

    Serves 25k people

    Serves your county
  10. BRIDGESTONE MUD

    HOUSTON · PWSID TX1011550

    Serves 25k people

    Serves your county
  11. TIMBER LANE UTILITY DISTRICT

    HOUSTON · PWSID TX1010278

    Serves 25k people

    Serves your county
  12. NORTHWEST HARRIS COUNTY MUD 5

    HOUSTON · PWSID TX1010884

    Serves 24k people

    Serves your county
  13. HARRIS COUNTY FWSD 51

    HOUSTON · PWSID TX1010238

    Serves 20k people

    Serves your county
  14. CIMARRON MUD

    HOUSTON · PWSID TX1011410

    Serves 19k people

    Serves your county
  15. CITY OF WEST UNIVERSITY PLACE

    WEST UNIVERSITY PLACE · PWSID TX1010027

    Serves 19k people

    Serves your county
  16. HARRIS COUNTY MUD 82

    HOUSTON · PWSID TX1010630

    Serves 19k people

    Serves your county
  17. NORTHWEST PARK MUD

    HOUSTON · PWSID TX1010593

    Serves 18k people

    Serves your county
  18. CLEAR BROOK CITY MUD

    HOUSTON · PWSID TX1010418

    Serves 18k people

    Serves your county
  19. CITY OF BELLAIRE

    BELLAIRE · PWSID TX1010004

    Serves 18k people

    Serves your county
  20. HARRIS MONTGOMERY COUNTIES MUD 386

    HOUSTON · PWSID TX1013305

    Serves 18k people

    Serves your county
  21. HARRIS COUNTY MUD 53

    HOUSTON · PWSID TX1010720

    Serves 18k people

    Serves your county
  22. CITY OF TOMBALL

    TOMBALL · PWSID TX1010026

    Serves 18k people

    Serves your county
  23. CITY OF SOUTH HOUSTON

    SOUTH HOUSTON · PWSID TX1010294

    Serves 17k people

    Serves your county
  24. HARRIS COUNTY MUD 26

    HOUSTON · PWSID TX1010715

    Serves 17k people

    Serves your county
  25. HARRIS COUNTY MUD 71

    HOUSTON · PWSID TX1011823

    Serves 17k people

    Serves your county
  26. HARRIS COUNTY MUD 167

    HOUSTON · PWSID TX1012842

    Serves 17k people

    Serves your county
  27. HARRIS COUNTY MUD 55 HERITAGE PARK

    HOUSTON · PWSID TX1010678

    Serves 16k people

    Serves your county
  28. CITY OF HUMBLE

    HUMBLE · PWSID TX1010014

    Serves 16k people

    Serves your county
  29. HARRIS COUNTY FWSD 61

    HOUSTON · PWSID TX1010237

    Serves 15k people

    Serves your county
  30. HARRIS COUNTY MUD 105

    HOUSTON · PWSID TX1011227

    Serves 15k people

    Serves your county
  31. HARRIS COUNTY MUD 200 CRANBROOK

    HOUSTON · PWSID TX1012007

    Serves 15k people

    Serves your county
  32. HARRIS COUNTY MUD 24

    HOUSTON · PWSID TX1010572

    Serves 15k people

    Serves your county
  33. CNP UTILITY DISTRICT

    HOUSTON · PWSID TX1010429

    Serves 15k people

    Serves your county
  34. HARRIS COUNTY MUD 285

    HOUSTON · PWSID TX1012677

    Serves 14k people

    Serves your county
  35. CITY OF HOUSTON WILLOW CHASE

    HOUSTON · PWSID TX1011902

    Serves 14k people

    Serves your county
  36. MEADOWHILL REGIONAL MUD

    HOUSTON · PWSID TX1010387

    Serves 14k people

    Serves your county
  37. HARRIS COUNTY WCID 21

    CHANNELVIEW · PWSID TX1010769

    Serves 14k people

    Serves your county
  38. REMINGTON MUD 1

    HOUSTON · PWSID TX1013074

    Serves 14k people

    Serves your county
  39. CITY OF WEBSTER

    WEBSTER · PWSID TX1010226

    Serves 14k people

    Serves your county
  40. CITY OF SEABROOK

    SEABROOK · PWSID TX1010062

    Serves 14k people

    Serves your county
  41. NEWPORT MUD

    HOUSTON · PWSID TX1010362

    Serves 13k people

    Serves your county
  42. HARRIS COUNTY MUD 157

    HOUSTON · PWSID TX1011430

    Serves 13k people

    Serves your county
  43. HARRIS COUNTY MUD 168

    SUGAR LAND · PWSID TX1011783

    Serves 13k people

    Serves your county
  44. HARRIS COUNTY MUD 1

    HOUSTON · PWSID TX1010539

    Serves 12k people

    Serves your county
  45. NORTHAMPTON MUD

    HOUSTON · PWSID TX1010337

    Serves 12k people

    Serves your county
  46. HARRIS COUNTY MUD 368

    HOUSTON · PWSID TX1011908

    Serves 12k people

    Serves your county
  47. HARRIS COUNTY MUD 153

    HOUSTON · PWSID TX1012133

    Serves 12k people

    Serves your county
  48. FORT BEND COUNTY MUD 142

    HOUSTON · PWSID TX0790429

    Serves 12k people

    Billing address at this ZIP
  49. HARRIS COUNTY MUD 81

    HOUSTON · PWSID TX1010581

    Serves 12k people

    Serves your county
  50. MEMORIAL VILLAGES WATER AUTHORITY

    HOUSTON · PWSID TX1010148

    Serves 11k people

    Serves your county
  51. HARRIS COUNTY UTILITY DISTRICT 6

    HOUSTON · PWSID TX1010501

    Serves 11k people

    Serves your county
  52. BLUE RIDGE WEST MUD

    HOUSTON · PWSID TX0790051

    Serves 7,545 people

    Billing address at this ZIP
  53. BRAZORIA COUNTY MUD 6

    HOUSTON · PWSID TX0200578

    Serves 6,926 people

    Billing address at this ZIP
  54. MONTGOMERY COUNTY MUD 119 SPRING TRAILS

    HOUSTON · PWSID TX1700773

    Serves 6,621 people

    Billing address at this ZIP
  55. MONTGOMERY COUNTY MUD 95

    HOUSTON · PWSID TX1700779

    Serves 6,435 people

    Billing address at this ZIP
  56. FORT BEND COUNTY MUD 35

    HOUSTON · PWSID TX0790433

    Serves 6,297 people

    Billing address at this ZIP
  57. FORT BEND COUNTY MUD 34

    HOUSTON · PWSID TX0790200

    Serves 5,523 people

    Billing address at this ZIP
  58. MONTGOMERY COUNTY MUD 94

    HOUSTON · PWSID TX1700716

    Serves 5,184 people

    Billing address at this ZIP
  59. HARRIS FORT BEND COUNTIES MUD 5

    HOUSTON · PWSID TX0790347

    Serves 4,641 people

    Billing address at this ZIP
  60. PLANTATION MUD

    HOUSTON · PWSID TX0790112

    Serves 4,263 people

    Billing address at this ZIP
  61. FORT BEND COUNTY MUD 41

    HOUSTON · PWSID TX0790229

    Serves 4,179 people

    Billing address at this ZIP
  62. GRAND LAKES MUD 4

    HOUSTON · PWSID TX0790356

    Serves 3,867 people

    Billing address at this ZIP
  63. FORT BEND COUNTY MUD 229

    HOUSTON · PWSID TX0790602

    Serves 3,666 people

    Billing address at this ZIP
  64. FORT BEND COUNTY FWSD 1

    HOUSTON · PWSID TX0790474

    Serves 3,309 people

    Billing address at this ZIP
  65. GRAND LAKES MUD 1

    HOUSTON · PWSID TX0790410

    Serves 3,219 people

    Billing address at this ZIP
  66. WOOD TRACE MUD 1

    HOUSTON · PWSID TX1700642

    Serves 3,084 people

    Billing address at this ZIP
  67. MONTGOMERY COUNTY MUD 98

    HOUSTON · PWSID TX1700746

    Serves 2,766 people

    Billing address at this ZIP
  68. MONTGOMERY COUNTY MUD 84

    HOUSTON · PWSID TX1700743

    Serves 2,553 people

    Billing address at this ZIP
  69. HARRIS MONTGOMERY COUNTIES MUD 386 MAY V

    HOUSTON · PWSID TX1700796

    Serves 2,364 people

    Billing address at this ZIP
  70. MONTGOMERY COUNTY MUD 96

    HOUSTON · PWSID TX1700847

    Serves 2,334 people

    Billing address at this ZIP
  71. MONTGOMERY COUNTY MUD 83

    HOUSTON · PWSID TX1700581

    Serves 2,208 people

    Billing address at this ZIP
  72. MONTGOMERY COUNTY MUD 144

    HOUSTON · PWSID TX1700908

    Serves 2,106 people

    Billing address at this ZIP
  73. GRAND LAKES MUD 2

    HOUSTON · PWSID TX0790387

    Serves 2,076 people

    Billing address at this ZIP
  74. AUDUBON MUD 1

    HOUSTON · PWSID TX1700906

    Serves 2,049 people

    Billing address at this ZIP
  75. SEDONA LAKES MUD 1

    HOUSTON · PWSID TX0200663

    Serves 1,977 people

    Billing address at this ZIP
  76. FORT BEND COUNTY MUD 220

    HOUSTON · PWSID TX0790573

    Serves 1,812 people

    Billing address at this ZIP
  77. WILLOW POINT MUD

    HOUSTON · PWSID TX0790550

    Serves 1,668 people

    Billing address at this ZIP
  78. MONTGOMERY COUNTY MUD 152A

    HOUSTON · PWSID TX1701014

    Serves 1,344 people

    Billing address at this ZIP
  79. FORT BEND COUNTY MUD 145 RIO VISTA

    HOUSTON · PWSID TX0790502

    Serves 1,263 people

    Billing address at this ZIP
  80. CHARLESTON MUD

    HOUSTON · PWSID TX0790588

    Serves 1,212 people

    Billing address at this ZIP
  81. CORINTHIAN POINT MUD 2

    HOUSTON · PWSID TX1700152

    Serves 1,086 people

    Billing address at this ZIP
  82. MONTGOMERY COUNTY MUD 141

    HOUSTON · PWSID TX1700866

    Serves 978 people

    Billing address at this ZIP
  83. BIG SKY MUD

    HOUSTON · PWSID TX0610278

    Serves 813 people

    Billing address at this ZIP
  84. FORT BEND COUNTY MUD 132

    HOUSTON · PWSID TX0790566

    Serves 795 people

    Billing address at this ZIP
  85. FORT BEND COUNTY WCID 3

    HOUSTON · PWSID TX0790368

    Serves 648 people

    Billing address at this ZIP
  86. MONTGOMERY COUNTY MUD 42

    HOUSTON · PWSID TX1700320

    Serves 630 people

    Billing address at this ZIP
  87. FORT BEND COUNTY MUD 66

    HOUSTON · PWSID TX0790486

    Serves 495 people

    Billing address at this ZIP
  88. MONTGOMERY COUNTY MUD 172

    HOUSTON · PWSID TX1700929

    Serves 264 people

    Billing address at this ZIP
  89. CHAMBERS COUNTY MUD 3

    HOUSTON · PWSID TX0360150

    Serves 234 people

    Billing address at this ZIP
  90. MONTGOMERY COUNTY MUD 158

    HOUSTON · PWSID TX1700962

    Serves 219 people

    Billing address at this ZIP
  91. KING RANCH SANTA GERTRUDIS DISTRICT

    HOUSTON · PWSID TX1370012

    Serves 212 people

    Billing address at this ZIP
  92. WALLER COUNTY MUD 45

    HOUSTON · PWSID TX2370144

    Serves 153 people

    Billing address at this ZIP
  93. WALLER COUNTY MUD 34C

    HOUSTON · PWSID TX2370134

    Serves 141 people

    Billing address at this ZIP
  94. CHANNEL OAKS WATER SYSTEM

    HOUSTON · PWSID TX0270037

    Serves 135 people

    Billing address at this ZIP
  95. FORT BEND COUNTY MUD 216

    HOUSTON · PWSID TX0790624

    Serves 133 people

    Billing address at this ZIP
  96. LEANING OAK MOBILE HOME PARK

    HOUSTON · PWSID TX2370044

    Serves 105 people

    Billing address at this ZIP
  97. OAK ACRES MOBILE HOME PARK

    HOUSTON · PWSID TX1810179

    Serves 80 people

    Billing address at this ZIP
  98. KING RANCH LAURELES DIVISION

    HOUSTON · PWSID TX1370028

    Serves 60 people

    Billing address at this ZIP
  99. WINDCRESS MUD OF CHAMBERS COUNTY

    HOUSTON · PWSID TX0360154

    Serves 57 people

    Billing address at this ZIP
  100. KENDALL COUNTY WCID 3A

    HOUSTON · PWSID TX1300082

    Serves 45 people

    Billing address at this ZIP

More for TX

How we matched ZIP 77056: we translate the ZIP to a city and county via the Geonames postal database, then match against service-area cities and counties EPA has on file for each public water system. EPA does not publish authoritative service-area boundary maps for most systems, so there is still some guesswork; large regional authorities (e.g., county-wide water and sewer authorities) are usually filed at the county level even when they serve specific cities. Your water bill names the authoritative utility. Methodology.