Round Rock, TX Home Safety by Neighborhood - Water Issues Recorded
6 ZIP codes · 46 EPA violations on record for mapped water systems
Data source: ZipCheckup Home Safety Score registry; EPA SDWIS; EPA radon; EPA AirNow
ZipCheckup compares 6 ZIP codes across Round Rock, TX. Water systems associated with 3 ZIP codes have recorded EPA violations; safety scores are not available for every area.
Home-safety conditions vary across Round Rock, TX. We compared 6 ZIP codes using the current versioned Home Safety Score. Water compliance remains one component alongside PFAS screening, radon, and annual air quality.
Neighborhood Rankings
Mapped ZIP codes in Round Rock ranked by Home Safety Score:
| Rank | ZIP Code | Score | Grade | Violations | Lead Risk |
|---|---|---|---|---|---|
| 1 | 78664 | — | — | 17 | 0.0050 mg/L |
| 2 | 78665 | — | — | 9 | 0.0050 mg/L |
| 3 | 78680 | — | — | — | No data |
| 4 | 78681 | — | — | 26 | 0.0050 mg/L |
| 5 | 78682 | — | — | — | No data |
| 6 | 78683 | — | — | — | No data |
How Neighborhoods Compare
Each ZIP code compared to county and state averages:
EPA Violations
- 46 total violations since 2021 across the water systems mapped to Round Rock ZIP codes (each system counted once; includes small systems beyond the city utility)
- 10 health-based violation records in the available EPA data
- 3 of 3 directly mapped ZIP records are mapped to water systems with recorded violations
- 0 of 3 ZIP records with known lead status are served by a system whose 90th-percentile lead result exceeded the EPA action level
Top Contaminants
| Contaminant | Violations | ZIPs |
|---|---|---|
| Total Trihalomethanes (TTHM) | 11 | 3 |
| Lead and Copper Rule | 8 | 1 |
| Public Notice Rule | 8 | 3 |
| Chlorine | 8 | 3 |
| E. coli | 4 | 2 |
Frequently Asked Questions
Which ZIP code in Round Rock has the highest home safety score?
Is Round Rock water safe to drink?
The Home Safety Score is not a drinking-water grade. Across 3 directly mapped ZIP records, 46 EPA violations are recorded; 0 of 3 records with known lead status exceed the action level. Check the specific ZIP and serving system before drawing a property-level conclusion.
Related Pages
Data Sources
- EPA SDWIS
- U.S. Census Bureau
Reporting periods vary by source; the page metadata identifies this materialization.