ZIP 78664 (Round Rock, TX) — Property Value, Rent, Schools, Flood, Soil & EPA Report
Is ZIP 78664 (Round Rock, TX) a High-Risk Area & What Are Local Home Values?
ZIP code 78664 in Round Rock, Texas (Williamson County) tracks 240 EPA-regulated sites (2 High-Risk, 0.8%), 4 FEMA county disaster declarations, and a HIGH USDA soil foundation signal. Local U.S. Census & HUD benchmarks report a $278,200 median home value (+31.7% 5-yr FHFA appreciation) and $1,790/mo 2-BR Fair Market Rent, with 34 nearby K–12 schools.
| ZIP 78664 (Round Rock, TX) Benchmark | Official Public Record Value | Primary Federal Source |
|---|---|---|
| Median Home Value / 5-Yr Appreciation | $278,200 (+31.7% 5-Yr FHFA HPI) | U.S. Census ACS • FHFA HPI |
| HUD 2-Bedroom Small Area Fair Market Rent | $1,790 / month (3-BR: $2,270/mo) | U.S. HUD FY2025 SAFMR |
| EPA-Regulated Sites & High-Risk Facilities | 240 sites (2 High-Risk • $285,363 penalties) | U.S. EPA ECHO / FRS / RCRA |
| FEMA Disaster History & Soil Shrink-Swell | 4 FEMA Disasters • HIGH Soil Risk | FEMA OpenFEMA • USDA SSURGO |
| K–12 Schools (3 Mi) & Walkability Score | 34 K–12 Schools • 10.1 / 20.0 Walk Score • Fire 1.1 mi | NCES • EPA SLD • USGS |
ZIP 78664 (Round Rock, TX) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals
🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan📊 ZIP 78664 (Round Rock, TX) Statistical Risk Graphs & Multi-Hazard Telemetry
SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 02, 2026)ZIP 78664 Sector Screening Map (High-Risk Pin Coordinates Locked)
Exact street pins for 2 High-Risk and 1 Active Violation sites are redacted on public directory maps.
Regulated EPA Facilities in ZIP 78664 (Round Rock, TX)
100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).
| Facility Name / Hazard Type | Sector Location (Street Redacted) | Risk Score (0–100) | Compliance Status | Enforcement / Unlock |
|---|---|---|---|---|
| 🔒 Locked Regulated EPA Enforcement Record #1 | 🔒 Exact Street & Parcel Redacted • ROUND ROCK, TX (ZIP 78664 Sector) | MODERATE (34/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #2 | 🔒 Exact Street & Parcel Redacted • ROUND ROCK, TX (ZIP 78664 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #3 | 🔒 Exact Street & Parcel Redacted • ROUND ROCK, TX (ZIP 78664 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #4 | 🔒 Exact Street & Parcel Redacted • ROUND ROCK, TX (ZIP 78664 Sector) | MODERATE (33/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #5 | 🔒 Exact Street & Parcel Redacted • ROUND ROCK, TX (ZIP 78664 Sector) | MODERATE (32/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #6 | 🔒 Exact Street & Parcel Redacted • ROUND ROCK, TX (ZIP 78664 Sector) | MODERATE (31/100) | No Violation Identified (0 qtrs NC) | 🔒 $100,000+ Federal Fine • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #7 | 🔒 Exact Street & Parcel Redacted • ROUND ROCK, TX (ZIP 78664 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| 🔒 Locked Regulated EPA Enforcement Record #8 | 🔒 Exact Street & Parcel Redacted • ROUND ROCK, TX (ZIP 78664 Sector) | MODERATE (30/100) | No Violation Identified (0 qtrs NC) | 🔒 Active Permit Dossier • Unlock → |
| PIONEER CONCRETE OF TEXAS INC FREE PREVIEW (LOW RISK) | 2412 ROYSTON LANE, ROUND ROCK, TX 78664 | LOW (24/100) | No Violation Identified (0 qtrs NC) | $0 |
| CERILLIANT CORP FREE PREVIEW (LOW RISK) | 811 PALOMA DR SUITE A, ROUND ROCK, TX 78664 | LOW (19/100) | No Violation Identified (0 qtrs NC) | $0 |
| UNITED PARCEL SERVICE FREE PREVIEW (LOW RISK) | 33 ROUNDVILLE LN, ROUND ROCK, TX 78664 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
| CIELO NORTH EAST & CIELO NORTH PUBLIC IMPROVEMEN FREE PREVIEW (LOW RISK) | LOCATED ON THE NORTH SIDE OF WEST PFLUGERVILLE PKW, PFLUGERVILLE, TX 78664 | LOW (18/100) | No Violation Identified (0 qtrs NC) | $0 |
Frequently Asked Questions — ZIP 78664 (Round Rock, TX) EPA Dataset & Radon
DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 02, 2026)What is the home value, appreciation, and Fair Market Rent in ZIP 78664 (Round Rock, TX)?
In ZIP 78664 (Round Rock, TX), U.S. Census & HUD benchmarks show a median home value of $278,200, 5-year FHFA home price appreciation of +31.7%, and a HUD 2-Bedroom Small Area Fair Market Rent of $1,790/month.
How many EPA-tracked environmental sites are in ZIP code 78664 (Round Rock, TX)?
ZIP code 78664 (Round Rock, TX) contains 240 EPA-tracked facilities, of which 2 (0.8%) are classified in the High-Risk tier, 1 (0.4%) have active compliance violations, and 60 (25.0%) handle RCRA hazardous waste.
Is ZIP 78664 (Round Rock, TX) in a FEMA flood zone and what is the soil foundation risk?
Williamson County has recorded 4 historical FEMA disaster declarations (1 flood/storm events), and USDA regional soil screening indicates a HIGH shrink-swell foundation signal. Run an exact street-address scan to unlock parcel Flood Zone (AE/VE/X) and Soil LEP %.
How many schools, fire stations, and walkability options are near ZIP 78664?
Within 3 miles of the ZIP 78664 center, federal NCES & USGS registries index 34 public, charter, and private K–12 campuses, nearest fire/EMS station at 1.1 mi, and an EPA National Walkability Score of 10.1/20.0.
Does ZIP 78664 have drinking water (SDWIS) permits or EPA radon risk?
Geologic screening places ZIP 78664 in EPA Zone 3 — Low Potential (< 2.0 pCi/L), with 3 SDWIS drinking water facilities, 174 Clean Water NPDES permits, and 21 impaired water body dischargers tracked in this postal sector.