ZIP Code 27511 Water Quality

North Carolina · 214,983 people served · 701 water systems

Failing

ZIP code 27511 is in North Carolina and is a mid-sized community from a drinking-water-service perspective, with 214,983 people served by 701 EPA-registered public water systems. It corresponds to CARY.

Within ZIP code 27511, the EPA Safe Drinking Water Information System (SDWIS) records 80 health-based violations during the past five years across 701 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 27511

CARY

Water Systems Serving 27511

TIMBERLAKE WATER SYSTEM

PWSID: NC0286124

61 served

SPRINGFIELD WATER SUPPLY

PWSID: NC0286117

74 served

STERLINGSHIRE S/D

PWSID: NC3041062

147 served

GREEN HEIGHTS WATER SYSTEM

PWSID: NC0286106

36 served

COLONIAL WOODS WATER SYSTEM

PWSID: NC0286103

206 served

CRUTCHFIELD FARMS S/D

PWSID: NC3041042

81 served

THE FARMS AT SUMMERFIELD

PWSID: NC0241237

46 served

SOUTH RIDGE S/D

PWSID: NC0286170

135 served

RING CREEK S/D

PWSID: NC3086036

61 served

TRIPLE LAKES S/D

PWSID: NC3041023

315 served

MEADOW VIEW ESTATES S/D

PWSID: NC0286155

51 served

BLUE WATER COVE S/D

PWSID: NC3034012

38 served

DEERPATH S/D

PWSID: NC0234192

142 served

HARKERS VILLAGE S/D

PWSID: NC0416221

94 served

SEAGATE I

PWSID: NC0416174

345 served

WILLOW CREEK S/D

PWSID: NC0392230

74 served

TIMBERLAKE MHP

PWSID: NC0273103

107 served

ROLLING ACRES S/D

PWSID: NC0392247

58 served

SHEFFIELD PARK S/D

PWSID: NC0230109

79 served

POLKS TRAIL S/D

PWSID: NC0319134

43 served

EAGLEWOOD FARMS S/D

PWSID: NC0392394

102 served

HUNTER`S RIDGE S/D

PWSID: NC0291120

81 served

LYNNBANK ESTATES

PWSID: NC0291121

115 served

ROWLAND POND S/D

PWSID: NC4092043

363 served

WOODBRIDGE S/D

PWSID: NC0319135

143 served

KENDALL HILL MASTER

PWSID: NC4392225

267 served

GREYTHORNE S/D

PWSID: NC4092021

94 served

HARMONY GLEN S/D

PWSID: NC4392229

74 served

RIDGEBROOK BLUFF S/D

PWSID: NC4392101

234 served

SEDGEMOOR S/D

PWSID: NC4392102

435 served

DOOLIE MEADOWS S/D

PWSID: NC0149189

56 served

HARBOR VIEW S/D

PWSID: NC0149190

549 served

ASHLEY WOODS S/D

PWSID: NC0149191

97 served

RAMBLING RIDGE S/D

PWSID: NC0145155

200 served

HUNTCLIFF S/D

PWSID: NC0241217

262 served

CEDAR CREEK S/D

PWSID: NC0276202

105 served

PENMAN HEIGHTS

PWSID: NC0276204

74 served

ALLENDALE HEIGHTS

PWSID: NC0276207

78 served

IDLEWILD PARK

PWSID: NC0136151

84 served

ROSELAND HEIGHTS S/D

PWSID: NC0149134

51 served

RIDGECREST/BAKERSFIELD S/D

PWSID: NC3041066

343 served

STONEY OAKS S/D

PWSID: NC0136356

74 served

SHADOW OAKS S/D

PWSID: NC0136358

318 served

FARMWOOD S/D(COUNTRYWOODS S/D)

PWSID: NC0136290

246 served

PINEVIEW S/D

PWSID: NC0136329

102 served

CHAPEL RIDGE S/D

PWSID: NC4019009

2,098 served

CAMERON POINT S/D

PWSID: NC0136397

86 served

COUNTRY CROSSING S/D

PWSID: NC0155134

191 served

DEERWOOD S/D

PWSID: NC0155135

109 served

FOXFIRE S/D

PWSID: NC0136154

61 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.