Tapcensus

Water quality for ZIP code 77380

ZIP 77380 covers The Woodlands, Houston, Shenandoah, and Oak Ridge North in Montgomery County, Texas, one of 22 ZIP codes in the county. 472 active public water systems serve the county; 228 had an EPA violation in the past three years.

Most likely your provider

Montgomery County MUD 36 TX1700139 · Community water system · Surface water purchased
Serves 5,235 people Rules violated, past 3 years 1 Unresolved 1 Last sanitary survey Jan 17, 2025 Distance 0.9 mi

Your location is within the outer bounds of this system's EPA service area.

View system details EPA facility report

Other community water systems in Montgomery County

337 systems, nearest first
SystemServesStatusRules violated, 3 yrDistance
Montgomery County MUD 6
 8,610 1 0.5 mi
Holly Oaks Mobile Home Park
 63 5 0.7 mi
Montgomery County MUD 19
 4,422 0 1.2 mi
Montgomery County Wcid 1
 7,070 2 1.5 mi
Southern Montgomery County MUD
 13,372 1 1.8 mi
The Woodlands MUD 1
 7,989 1 2.0 mi
City of Oak Ridge North
 3,585 0 2.2 mi
The Woodlands Metro Center MUD
 1,725 1 2.4 mi
Eastwood Hills Subdivision
 474 2 2.5 mi
Lazy Lane Mobile Home Park
 120 4 2.6 mi
Montgomery County MUD 7
 12,528 1 3.1 mi
Chateau Woods MUD Water System
 2,700 0 3.3 mi
Rayford Road MUD
 11,550 0 3.4 mi
City of Shenandoah
 3,499 1 3.4 mi
Spring Forest Subdivision
 759 1 3.6 mi
Estates of Legends Ranch
 591 0 4.0 mi
Montgomery County MUD 99
 3,675 0 4.4 mi
Lakeland Water System
 303 0 4.5 mi
Montgomery County MUD 60
 15,036 0 4.6 mi
Spring Creek Utility District
 8,919 0 4.6 mi
Montgomery County MUD 89
 4,761 0 4.6 mi
Montgomery County MUD 95
 6,435 0 4.8 mi
Montgomery County MUD 115
 4,599 0 4.8 mi
White Oak Water Supply Corporation
 900 0 4.8 mi
Montgomery County MUD 67
 16,821 1 4.8 mi
All 338 community water systems in Montgomery County
Non-community systems in Montgomery County (134: schools, campgrounds, workplaces, restaurants)

These systems serve places you visit rather than homes.

SystemServesStatusRules violated, 3 yrUnresolved
Church Project
 100 3 1
Addison Woods Event Venue
 150 2 0
Oakridge Ward Houston Texas North Stake
 150 1 0
Rayford Business Park
 299 0 0
Scrap Yard Sports
 25 0 0
Robbin Express
 60 2 0
Rayford Crossing RV Resort
 165 2 0
Forest Park the Woodlands Funeral Home
 60 2 0
Riley Express
 25 0 0
Snappy Mart 6
 150 1 0
Sunshine Food Mart 1
 200 0 0
Asi Gymnastics
 150 2 0
E3 Academics
 40 0 0
Saddle River Range
 100 0 0
Masjid Al-Ansaar
 50 0 0
Hollis Partners
 29 1 0
Easy Lane Food Mart 6
 200 2 0
Timber Ridge RV Village
 132 2 1
2978 Express
 150 0 0
Grace Chapel Assembly of God
 108 3 0
Allendale Baptist Church
 80 2 1
Four Oaks RV Park
 213 0 0
Conroe Isd San Jacinto Elementary
 718 1 0
Magnolia Isd Smith Elementary School
 900 5 1
Twu Water Hauler Conroe
 25 1 0
Corner Store the
 250 0 0
Paradise Food Mart
 40 0 0
Lamberti USA Conroe Plant 8910
 30 1 0
Dollar General Store 18781
 25 0 0
Leisure Lane RV Park
 456 0 0
Wigginsville Victory Tabernacle
 200 2 0
Ike Stop
 30 0 0
First Baptist Church Grangerland
 75 0 0
Valero 592
 275 0 0
Thrive With Autism Foundation
 249 2 0
Conroe Isd Moorehead JR High School
 4,945 0 0
Met
 120 2 1
242 Express Mart
 250 0 0
Dollar General Conroe
 25 0 0
Tenaris Conroe
 100 1 0
Conroe Isd Creighton Intermediate
 952 0 0
Spring Creek Motor Coach Resort
 285 0 0
Fuel Maxx 97
 25 0 0
Arissa Properties
 25 0 0
Amber Springs Event Center
 300 0 0
Leisure Lane RV Resort Magnolia
 264 0 0
River of God Church
 25 0 0
Third Coast Services
 100 1 0
Builders Firstsource Truss Manufacturing
 180 1 0
Read Youth Charities Dba Deerfoot Youth
 70 0 0
All non-community systems
About this data

Water systems are matched to Montgomery County, the county this ZIP code lies in, nearest to the ZIP code's centre first. Your exact provider depends on your address and connection; the largest community water system in a county is usually the city or town utility. Distances are measured to the centre of the service area EPA publishes for the system.

ZIP code areas and town boundaries come from the U.S. Census Bureau's 2020 ZCTA files.

Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Texas records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.