Fairfield County, Connecticut
86 ZIP codes · Avg score 48/100 · Grade D · Updated
ZipCheckup grade for Fairfield County: D.
Several federal signals point to home-safety risks in this ZIP.
Your top priority: see the breakdown below and consider a certified water filter. NSF certified filters →
Compared to state averages, Fairfield County scores below the baseline - health violations appear more frequently than the norm across its 86 ZIP codes.
How Fairfield County Compares
How Fairfield County Compares
Fairfield County scores 15 points below the Connecticut state average (63/100) and 25 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
ZIP Code Risk Map
Water Quality Map: Fairfield County, Connecticut
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Estimated additional annual cost per homeowner: $2,456, driven primarily by flood
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Fairfield County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 31 violations. Past 5 years: 63 total (63 health-based). Health-based violations are rising versus the prior 2-year window - worth closer monitoring.
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $2,456
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Fairfield County
Remediation costs are relatively manageable for most homeowners in Fairfield County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Water systems serving Fairfield County
8 community water systems serving Fairfield County.
- D
- D
- F
- D
- D
- C
Show all 8 water systems
- F
- D
35 total water systems serve Fairfield County.
Systems with the most violations in Fairfield County
5 water systems with recorded EPA violations.
- D
- F
- F
- F
All ZIP Codes in Fairfield County
86 ZIP codes tracked in Fairfield County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 06853 | Norwalk | 66 | C | 26 | $1402K |
| 2 | 06854 | Norwalk | 66 | C | 27 | $453K |
| 3 | 06468 | Monroe | 50 | D | 24 | $477K |
| 4 | 06484 | Shelton | 50 | D | 24 | $436K |
| 5 | 06604 | Bridgeport | 50 | D | 24 | $231K |
| 6 | 06605 | Bridgeport | 50 | D | 24 | $273K |
| 7 | 06606 | Bridgeport | 50 | D | 24 | $272K |
| 8 | 06607 | Bridgeport | 50 | D | 24 | $219K |
| 9 | 06608 | Bridgeport | 50 | D | 24 | $223K |
| 10 | 06610 | Bridgeport | 50 | D | 24 | $225K |
| 11 | 06612 | Easton | 50 | D | 25 | $727K |
| 12 | 06614 | Stratford | 50 | D | 24 | $343K |
| 13 | 06615 | Stratford | 50 | D | 24 | $349K |
| 14 | 06807 | Cos Cob | 50 | D | 24 | $1228K |
| 15 | 06820 | Darien | 50 | D | 24 | $1728K |
| 16 | 06824 | Fairfield | 50 | D | 24 | $827K |
| 17 | 06825 | Fairfield | 50 | D | 24 | $601K |
| 18 | 06830 | Greenwich | 50 | D | 24 | $1686K |
| 19 | 06831 | Greenwich | 50 | D | 24 | $1484K |
| 20 | 06840 | New Canaan | 50 | D | 25 | $1534K |
| 21 | 06870 | Old Greenwich | 50 | D | 24 | $1579K |
| 22 | 06878 | Riverside | 50 | D | 24 | $1899K |
| 23 | 06880 | Westport | 50 | D | 25 | $1244K |
| 24 | 06890 | Southport | 50 | D | 24 | $1087K |
| 25 | 06901 | Stamford | 50 | D | 24 | $446K |
| 26 | 06903 | Stamford | 50 | D | 24 | $894K |
| 27 | 06905 | Stamford | 50 | D | 24 | $609K |
| 28 | 06906 | Stamford | 50 | D | 24 | $576K |
| 29 | 06907 | Stamford | 50 | D | 24 | $556K |
| 30 | 06850 | Norwalk | 49 | D | 27 | $563K |
| 31 | 06851 | Norwalk | 49 | D | 27 | $565K |
| 32 | 06855 | Norwalk | 49 | D | 27 | $492K |
| 33 | 06883 | Weston | 49 | D | 26 | $968K |
| 34 | 06897 | Wilton | 49 | D | 27 | $891K |
| 35 | 06611 | Trumbull | 48 | D | 92 | $495K |
| 36 | 06470 | Newtown | 44 | D | 29 (1 health) | $515K |
| 37 | 06877 | Ridgefield | 42 | D | 45 (2 health) | $799K |
| 38 | 06801 | Bethel | 36 | F | 78 (1 health) | $427K |
| 39 | 06482 | Sandy Hook | 33 | F | 52 (2 health) | $465K |
| 40 | 06804 | Brookfield | 33 | F | 275 (9 health) | $452K |
| 41 | 06810 | Danbury | 33 | F | 62 (1 health) | $351K |
| 42 | 06811 | Danbury | 33 | F | 57 (4 health) | $406K |
| 43 | 06404 | Botsford | — | — | — | |
| 44 | 06440 | Hawleyville | — | — | — | |
| 45 | 06491 | Stevenson | — | — | — | |
| 46 | 06601 | Bridgeport | — | — | — | |
| 47 | 06602 | Bridgeport | — | — | — | |
| 48 | 06673 | Bridgeport | — | — | — | |
| 49 | 06699 | Bridgeport | — | — | — | |
| 50 | 06784 | Sherman | — | — | 0 | $519K |
| 51 | 06812 | New Fairfield | — | — | 59 (3 health) | $456K |
| 52 | 06813 | Danbury | — | — | — | |
| 53 | 06814 | Danbury | — | — | — | |
| 54 | 06816 | Danbury | — | — | — | |
| 55 | 06817 | Danbury | — | — | — | |
| 56 | 06828 | Fairfield | — | — | — | |
| 57 | 06829 | Georgetown | — | — | — | |
| 58 | 06836 | Greenwich | — | — | — | |
| 59 | 06838 | Greens Farms | — | — | — | |
| 60 | 06852 | Norwalk | — | — | — | |
| 61 | 06856 | Norwalk | — | — | — | |
| 62 | 06857 | Norwalk | — | — | — | |
| 63 | 06858 | Norwalk | — | — | — | |
| 64 | 06859 | Norwalk | — | — | — | |
| 65 | 06860 | Norwalk | — | — | — | |
| 66 | 06875 | Redding Center | — | — | — | |
| 67 | 06876 | Redding Ridge | — | — | — | |
| 68 | 06879 | Ridgefield | — | — | — | |
| 69 | 06881 | Westport | — | — | — | |
| 70 | 06888 | Westport | — | — | — | |
| 71 | 06889 | Westport | — | — | — | |
| 72 | 06896 | Redding | — | — | 24 | $686K |
| 73 | 06902 | Stamford | — | — | 24 | $515K |
| 74 | 06904 | Stamford | — | — | — | |
| 75 | 06910 | Stamford | — | — | — | |
| 76 | 06911 | Stamford | — | — | — | |
| 77 | 06912 | Stamford | — | — | — | |
| 78 | 06913 | Stamford | — | — | — | |
| 79 | 06914 | Stamford | — | — | — | |
| 80 | 06920 | Stamford | — | — | — | |
| 81 | 06921 | Stamford | — | — | — | |
| 82 | 06922 | Stamford | — | — | — | |
| 83 | 06925 | Stamford | — | — | — | |
| 84 | 06926 | Stamford | — | — | — | |
| 85 | 06927 | Stamford | — | — | — | |
| 86 | 06928 | Stamford | — | — | — |
Recommended Buyer Guides for Fairfield County
Filtered against federal data, fitted to local risks.
- Best Water Filters for PFAS — PFAS detected in 4 ZIP codes
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Fairfield County, Connecticut
Overview
Fairfield County in Connecticut covers 86 tracked ZIP records with an average Home Safety Score of D (48/100) across 42 scored records.
45 of 46 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 18 health-based violations appear in the available health breakdown.
← Back to Connecticut Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
What You Can Do
Fairfield County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.