Tap water quality for ZIP 77027
53 community water systems linked to this ZIP, largest first.
⚠ Some links below are based on the utility's mailing address, not its mapped service area, and may be approximate.
What this means for you in ZIP 77027
- Is it safe to drink right now?
- Based on the latest EPA data, Houston Public Works (City of Houston Water) has no unresolved health-based violations from the past year. Water that meets federal standards is generally considered safe to drink for most healthy people.
- Should I use a filter?
- Optional. Nothing in this data strongly calls for one. Many people still filter for chlorine taste and odor.
- What kind of filter?
- For taste and odor (chlorine/chloramine), an NSF/ANSI 42 pitcher or faucet filter is enough. See matched standards and product picks.
This is general information from public EPA data, not medical advice. Lead often comes from a home’s own pipes, so only a test of your tap can tell your exposure. If you are pregnant, caring for an infant, or have a weakened immune system, ask your doctor or health department.
Shown for the largest system linked to this ZIP. Check your water bill to confirm your provider.
Filters matched to Houston Public Works (City of Houston Water)
FILTER PICKS
Look for filters certified (NSF, IAPMO or WQA) to these standards for the specific contaminant. Buttons open the maker’s page or an Amazon search; use “Check NSF listing” to verify a model’s claims. No affiliate links yet — grades are never sold.
Chlorine/chloramine taste
NSF/ANSI 42Aquasana Clean Water Pitcher ~$35
Pitcher for chlorine taste/odor; check the NSF/ANSI 42 listing for the exact model.
Search on Amazon → Check NSF listing · Not an affiliate link · disclosure
Brita Elite Filter ~$20–40
Common faucet/pitcher option; confirm the 42 claim on the box.
View on Brita → Check NSF listing · Not an affiliate link · disclosure
Annual water quality report
Read Houston Public Works (City of Houston Water)’s Consumer Confidence Report (CCR) — the utility’s own annual water quality report. · Full report →
Water systems for this ZIP
B
Houston Public Works (City of Houston Water)
Serves 2,970,543 people · Surface water · Full report →
1 health-based violation in the last 5 years; PFAS tested (UCMR 5), none above federal limits; Lead 90th percentile below the action level (2024).
A
Kaufman County FWSD 1c
Serves 5,346 people · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Harris County MUD 534
Serves 3,822 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A
Waller County MUD 37
Serves 3,258 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A
Montgomery County MUD 138
Serves 2,712 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Harris County Improvement District 14
Serves 2,469 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
Montgomery County MUD 180
Serves 1,827 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
Harris County MUD 572
Serves 1,698 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Harris County MUD 559
Serves 1,629 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
Montgomery County MUD 145
Serves 1,476 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2023).
A
Harris County MUD 547
Serves 1,074 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
Harris County MUD 539
Serves 870 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
Harris County MUD 503
Serves 819 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
City of Kemah Mmd 1
Serves 741 people · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
Fort Bend County MUD 198
Serves 675 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
Brazoria County MUD 44
Serves 630 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A
Harris County MUD 586
Serves 609 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Waller County MUD 41
Serves 594 people · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
Fort Bend County MUD 250a
Serves 576 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
Fort Bend County MUD 195
Serves 513 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Harris County MUD 458
Serves 501 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Preserve at Highway 6
Serves 450 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Airport Road MUD
Serves 411 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
Fort Bend County MUD 255
Serves 387 people · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
Harris County MUD 532
Serves 342 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Montgomery County MUD 211
Serves 330 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
Fort Bend County MUD 258
Serves 291 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Harris County MUD 477
Serves 267 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
Harris County MUD 544
Serves 264 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Brazoria County MUD 57 McCoy Parkway
Serves 255 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
Harris County MUD 525
Serves 237 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
East Montgomery County MUD 14
Serves 213 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2024).
A
Montgomery County MUD 185
Serves 195 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
Montgomery County MUD 197
Serves 165 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
Waller County MUD 55a
Serves 108 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Harris County MUD 171
Serves 87 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Sienna MUD 7
Serves 69 people · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Brazoria County MUD 92
Serves 57 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Harris County MUD 560
Serves 54 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).
A
Colton MUD 2
Serves 54 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Fort Bend County MUD 256
Serves 47 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Montgomery County MUD 150
Serves 27 people · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
B
Waller County MUD 19
Serves 27 people · Groundwater · Full report →
No health-based violations in the last 5 years; 19 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
A
West Harris County Regional Water Author
Population not reported (often a wholesaler) · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
B
Municipal Groundwater Solutions
Population not reported (often a wholesaler) · Groundwater · Full report →
1 health-based violation in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file.
A
Harris-Waller Counties MUD 4
Population not reported (often a wholesaler) · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Harris County MUD 478 Water Plant 1
Population not reported (often a wholesaler) · Groundwater · Full report →
No health-based violations in the last 5 years; 1 monitoring/reporting violation; No UCMR 5 PFAS results on file.
A
Fort Bend County MUD 250
Population not reported (often a wholesaler) · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Fort Bend County MUD 214
Population not reported (often a wholesaler) · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Colton MUD 1
Population not reported (often a wholesaler) · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
North Fort Bend Water Authority
Population not reported (often a wholesaler) · Surface water · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Harris County Improvement District 13
Population not reported (often a wholesaler) · Groundwater · Full report →
No health-based violations in the last 5 years; No UCMR 5 PFAS results on file.
A
Waller County MUD 55
Population not reported (often a wholesaler) · Groundwater · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; No UCMR 5 PFAS results on file.
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