ZIP Code 77027 Water Quality

Texas · 839,006 people served · 196 water systems

Failing

ZIP code 77027 is in Texas and is a large city from a drinking-water-service perspective, with 839,006 people served by 196 EPA-registered public water systems. It overlaps with 2 communities including HOUSTON, SAVANNAH.

Within ZIP code 77027, the EPA Safe Drinking Water Information System (SDWIS) records 54 health-based violations during the past five years across 196 water systems serving this postal area. The grade of F reflects the aggregate compliance pattern, not the current daily water quality.

Last updated: 2026-05-18 · Source: EPA SDWIS

ZIP Code Location

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Cities in ZIP 77027

HOUSTON

SAVANNAH

Water Systems Serving 77027

HARRIS COUNTY MUD 457

PWSID: TX1013576

5,967 served

MONTGOMERY COUNTY MUD 105

PWSID: TX1700837

3,282 served

HARRIS COUNTY MUD 495

PWSID: TX1013532

5,007 served

FORT BEND COUNTY MUD 122

PWSID: TX0790416

3,366 served

FORT BEND COUNTY MUD 24

PWSID: TX0790468

3,177 served

HARRIS COUNTY MUD 290

PWSID: TX1013294

8,259 served

HARRIS COUNTY MUD 468

PWSID: TX1013369

7,944 served

RENN ROAD MUD

PWSID: TX1011834

4,464 served

HARRIS COUNTY MUD 264

PWSID: TX1012330

3,573 served

HARRIS COUNTY MUD 383

PWSID: TX1013213

4,881 served

HARRIS COUNTY MUD 120

PWSID: TX1010774

10,983 served

WALLER COUNTY MUD 37

PWSID: TX2370146

207 served

BAYBROOK MUD 1

PWSID: TX1012698

3,087 served

HARRIS COUNTY MUD 147

PWSID: TX1011243

3,003 served

SUGAR PINES MHP

PWSID: TX1810103

170 served

HIGHLAND MEADOWS MOBILE HOME PARK

PWSID: TX1010914

87 served

SUBURBAN MOBILE HOME PARK 2

PWSID: TX1010760

120 served

WESTFIELD MEADOWS

PWSID: TX1010584

72 served

HARRIS COUNTY MUD 358

PWSID: TX1012969

222 served

WILLOW CREEK FARMS MUD

PWSID: TX2370089

3,453 served

CINCO SOUTHWEST MUD 3 DAYCARE

PWSID: TX0790521

5,187 served

HARRIS COUNTY MUD 167

PWSID: TX1012842

16,761 served

FORT BEND COUNTY MUD 190

PWSID: TX0790501

5,049 served

CINCO SOUTHWEST MUD 2

PWSID: TX0790481

5,496 served

WEST HARRIS COUNTY REGIONAL WATER AUTHOR

PWSID: TX1013303

0 served

HARRIS COUNTY MUD 222

PWSID: TX1013054

6,129 served

CINCO MUD 3

PWSID: TX0790292

2,517 served

SIENNA PLANTATION MANAGEMENT DISTRICT

PWSID: TX0790493

4,179 served

SIENNA MUD 4

PWSID: TX0790489

6,435 served

NORTHEAST HARRIS COUNTY MUD 1 SHELDON RI

PWSID: TX1013448

1,788 served

NORTH FORT BEND WATER AUTHORITY

PWSID: TX0790511

0 served

NORTHEAST HARRIS COUNTY MUD 1 EDGEWOOD V

PWSID: TX1013449

1,842 served

CINCO MUD 12

PWSID: TX0790344

2,274 served

HARRIS COUNTY MUD 6 CARRIAGE LANE

PWSID: TX1010496

3,936 served

FORT BEND COUNTY MUD 30

PWSID: TX0790146

15,798 served

FORT BEND COUNTY MUD 119

PWSID: TX0790382

5,088 served

MUNICIPAL GROUNDWATER SOLUTIONS

PWSID: TX2270369

0 served

HARRIS COUNTY MUD 287

PWSID: TX1013385

3,510 served

GRAND OAKS MUD

PWSID: TX1700757

2,013 served

CYPRESSWOOD UTILITY DISTRICT

PWSID: TX1010432

4,305 served

HARRIS COUNTY WCID 161

PWSID: TX1013612

3,129 served

HARRIS COUNTY FWSD 51

PWSID: TX1010238

19,671 served

HARRIS COUNTY MUD 432

PWSID: TX1013378

4,782 served

HARRIS COUNTY MUD 423

PWSID: TX1013691

4,044 served

FORT BEND COUNTY MUD 189

PWSID: TX0790497

624 served

FORT BEND COUNTY MUD 130

PWSID: TX0790371

3,150 served

HARRIS COUNTY MUD 542

PWSID: TX1013573

2,592 served

HARRIS COUNTY MUD 321

PWSID: TX1012913

882 served

MONTGOMERY COUNTY MUD 185

PWSID: TX1700934

195 served

BRAZORIA COUNTY MUD 40

PWSID: TX0200754

1,986 served

About ZIP-code water data

Postal-code level water quality data is built up from the underlying water systems — multiple ZIPs may share a single utility, and a single ZIP can span multiple utilities. For property-level information, contact the specific utility serving your address. EPA data on this page was last refreshed on 2026-05-18.