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13-SECTION ZIP CODE PROPERTY, MARKET, SCHOOL, FLOOD & HAZARD PROFILE • 06820

ZIP 06820 (Darien, CT) — Property Value, Rent, Schools, Flood, Soil & EPA Report

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Is ZIP 06820 (Darien, CT) a High-Risk Area & What Are Local Home Values?

ZIP code 06820 in Darien, Connecticut (Fairfield County) tracks 66 EPA-regulated sites (1 High-Risk, 1.5%), 5 FEMA county disaster declarations, and a LOW USDA soil foundation signal. Local U.S. Census & HUD benchmarks report a $1,206,300 median home value (+25.6% 5-yr FHFA appreciation) and $3,530/mo 2-BR Fair Market Rent, with 19 nearby K–12 schools.

ZIP 06820 (Darien, CT) Benchmark Verified Local Figure Intelligence Category
Median Home Value / 5-Yr Appreciation $1,206,300 (+25.6% 5-Yr Trend) Valuation & Appreciation Index
2-Bedroom Fair Market Rent Benchmark $3,530 / month (3-BR: $4,300/mo) Rental Yield & Cap-Rate Index
Regulated Sites & High-Risk Facilities 66 sites (1 High-Risk • $0 penalties) Environmental & Compliance Audit
Flood Disaster History & Soil Shrink-Swell 5 Flood/Storm Disasters • LOW Soil Risk Flood & Foundation Stability
K–12 Schools (3 Mi) & Walkability Score 19 K–12 Schools • Fire 0.46 mi Schools, Transit & Fire Access
Total EPA Sites in 06820
66
High-Risk (1.5% vs 1.4% County)
1
Active Violators (1.5%)
1
Drinking & Clean Water
8
Federal Penalties
$0

ZIP 06820 (Darien, CT) 6-in-1 Flood, Soil Foundation, Tap Water & Radon Signals

🔒 Parcel-Level Soil LEP %, Water Table Depth & Flood Zone Require Street Address Scan
🌊 Flood Zone & FEMA Disaster History
Fairfield County: 5 FEMA Declarations (5 Flood/Storm)
🔒 Exact Parcel Flood Zone (AE / VE / X) & SFHA Mandatory Insurance Status Locked
Unlock Parcel Flood Zone →
🪨 USDA Soil, Foundation & Water Table
Shrink-Swell Risk Signal: LOW • Pipe Corrosion: Moderate
🔒 Exact USDA Soil Series, Linear Extensibility (LEP %) & Water Table Depth (ft) Locked
Unlock Parcel Soil Test →
🚰 Tap Water (SDWIS) & PFAS Check
1 SDWIS Systems • 7 NPDES Permits
🔒 1 Impaired Water (303d) & 1 Violation Dockets in 06820 Locked
Unlock Utility Violation Log →
☢️ EPA Radon & Karst Sinkhole
EPA Zone 1 — High Potential (> 4.0 pCi/L)
Low / Non-Karst Bedrock & Alluvial Formation
🔒 0.25-Mi Vapor Intrusion Buffer Locked

📊 ZIP 06820 (Darien, CT) Statistical Risk Graphs & Multi-Hazard Telemetry

SOURCE: EPA ECHO • USDA SSURGO • FEMA NRI • USGS (November 05, 2026)
1. ZIP 06820 Regulatory & Water Mix
RCRA Hazardous Waste Generators 49 (74.2%)
Clean Water (NPDES) & Drinking Water (SDWIS) 8 (12.1%)
Active EPA Non-Compliance Dockets 1 (1.5%)
High-Risk Enforcement Facilities 1 (1.5%)
2. FEMA NRI & USGS Hazard Index (1–10) Relatively High (97.4/100)
🌊 Flood Exposure 7/10 • High Hazard
🔥 Wildfire Hazard 1/10 • Very Low Hazard
☀️ Extreme Heat 5/10 • Moderate Hazard
🌪️ Severe Wind / Storm 7/10 • High Hazard
🫨 USGS Earthquake 2/10 • Low Seismic Hazard
3. ZIP 06820 vs. County & State Benchmark
ZIP 06820 High-Risk Rate 1.5%
Fairfield County Average 1.4%
Connecticut (CT) Statewide Avg 1.4%
Unlock Street-Level Dossier: Paid report reveals exact facility names, distances in feet, USDA soil LEP %, water table depth, and parcel flood zone.
🔒 Unlock Full 6-in-1 Property Report for 06820 →

ZIP 06820 Sector Screening Map (High-Risk Pin Coordinates Locked)

Exact street pins for 1 High-Risk and 1 Active Violation sites are redacted on public directory maps.

🔒 Unlock Exact Hazard Pin Map →
🔒 1 High-Risk & 1 Violation Pin Coordinates Redacted in ZIP 06820 (Only 3 Low-Risk Preview Pins Shown) Unlock Full Parcel Map & Street Dossier →

Regulated EPA Facilities in ZIP 06820 (Darien, CT)

100% of High-Risk & penalized facilities have facility names, street names, and dockets redacted (3 Low-Risk compliant records shown as Free Previews).

Unlock Full ZIP 06820 Dossier →
Facility Name / Hazard Type Sector Location (Street Redacted) Risk Score (0–100) Compliance Status Enforcement / Unlock
🔒 Locked High-Risk EPA Enforcement Record #1 🔒 Exact Street & Parcel Redacted • DARIEN, CT (ZIP 06820 Sector) HIGH (64/100) Significant Violation (11 qtrs NC) 🔒 11 Qtrs Non-Compliance • Unlock →
🔒 Locked Regulated EPA Enforcement Record #2 🔒 Exact Street & Parcel Redacted • DARIEN, CT (ZIP 06820 Sector) MODERATE (33/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #3 🔒 Exact Street & Parcel Redacted • DARIEN, CT (ZIP 06820 Sector) MODERATE (30/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #4 🔒 Exact Street & Parcel Redacted • DARIEN, CT (ZIP 06820 Sector) MODERATE (30/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #5 🔒 Exact Street & Parcel Redacted • DARIEN, CT (ZIP 06820 Sector) MODERATE (30/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #6 🔒 Exact Street & Parcel Redacted • NOROTON, CT (ZIP 06820 Sector) MODERATE (30/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #7 🔒 Exact Street & Parcel Redacted • DARIEN, CT (ZIP 06820 Sector) MODERATE (30/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
🔒 Locked Regulated EPA Enforcement Record #8 🔒 Exact Street & Parcel Redacted • NOROTON, CT (ZIP 06820 Sector) MODERATE (30/100) No Violation Identified (0 qtrs NC) 🔒 Active Permit Dossier • Unlock →
LAND ROVER DARIEN FREE PREVIEW (LOW RISK) 1335 POST RD, DARIEN, CT 06820 LOW (20/100) No Violation Identified (0 qtrs NC) $0
DARIEN MAINTENANCE & REPAIR FACILITY FREE PREVIEW (LOW RISK) 65 BROOKSIDE DR, DARIEN, CT 06820 LOW (18/100) No Violation Identified (0 qtrs NC) $0
DARIEN LAUNDERETTE FREE PREVIEW (LOW RISK) 1086 POST RD, DARIEN, CT 06820 LOW (17/100) No Violation Identified (0 qtrs NC) $0
DARIEN AUTO BODY FREE PREVIEW (LOW RISK) 159 WEST AVE, DARIEN, CT 06820 LOW (17/100) No Violation Identified (0 qtrs NC) $0
🔒 + 54 Additional Regulated & Enforcement Records in ZIP 06820 Redacted from Public Directory Run 1-Mile Property Scan to Unlock All Records →

Frequently Asked Questions — ZIP 06820 (Darien, CT) EPA Dataset & Radon

DATASET: U.S. EPA ECHO • FRS • RCRAInfo • TRI (November 05, 2026)

What is the home value, appreciation, and Fair Market Rent in ZIP 06820 (Darien, CT)?

In ZIP 06820 (Darien, CT), U.S. Census & HUD benchmarks show a median home value of $1,206,300, 5-year FHFA home price appreciation of +25.6%, and a HUD 2-Bedroom Small Area Fair Market Rent of $3,530/month.

How many EPA-tracked environmental sites are in ZIP code 06820 (Darien, CT)?

ZIP code 06820 (Darien, CT) contains 66 EPA-tracked facilities, of which 1 (1.5%) are classified in the High-Risk tier, 1 (1.5%) have active compliance violations, and 49 (74.2%) handle RCRA hazardous waste.

Is ZIP 06820 (Darien, CT) in a FEMA flood zone and what is the soil foundation risk?

Fairfield County has recorded 5 historical FEMA disaster declarations (5 flood/storm events), and USDA regional soil screening indicates a LOW 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 06820?

Within 3 miles of the ZIP 06820 center, federal NCES & USGS registries index 19 public, charter, and private K–12 campuses, nearest fire/EMS station at 0.46 mi.

Does ZIP 06820 have drinking water (SDWIS) permits or EPA radon risk?

Geologic screening places ZIP 06820 in EPA Zone 1 — High Potential (> 4.0 pCi/L), with 1 SDWIS drinking water facilities, 7 Clean Water NPDES permits, and 1 impaired water body dischargers tracked in this postal sector.

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