Middlesex County, Connecticut
23 ZIP codes · Avg score 56/100 · Grade C
ZipCheckup grade for Middlesex County: C.
A mixed picture - some signals here are worth your attention.
Middlesex County receives a C, the middle grade on the A-F scale, with 23 ZIP codes tracked.
How Middlesex County Compares
How Middlesex County Compares
Middlesex County scores 7 points below the Connecticut state average (63/100) and 17 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
ZIP Code Risk Map
Water Quality Map: Middlesex County, Connecticut
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Modeled additional annual cost estimate per homeowner: $3,420, largest modeled factor: Sea Level
62% of homes built before 1980 (lead paint was banned for residential use in 1978)
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $3,420
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
76,254 housing units in Middlesex County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Middlesex County
Modeled remediation costs in Middlesex County can be compared with the median property value; actual costs vary by property.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Water systems mapped to Middlesex County ZIP codes
8 community water systems mapped to Middlesex County ZIP codes; EPA may list more systems serving the county.
- D
- D
- F
- F
- C
- C
Show all 8 water systems
- D
21 water systems mapped to Middlesex County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Middlesex County
5 water systems with violations in EPA records.
- F
- D
- C
All ZIP Codes in Middlesex County
23 ZIP codes tracked in Middlesex County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 06409 | Centerbrook | 67 | C | 0 | $367K |
| 2 | 06412 | Chester | 67 | C | 0 | $404K |
| 3 | 06417 | Deep River | 67 | C | 0 | $349K |
| 4 | 06426 | Essex | 67 | C | 0 | $720K |
| 5 | 06480 | Portland | 66 | C | 2 | $306K |
| 6 | 06442 | Ivoryton | 60 | C | 9 (1 health) | $451K |
| 7 | 06413 | Clinton | 50 | D | 1 | $357K |
| 8 | 06475 | Old Saybrook | 50 | D | 0 | $479K |
| 9 | 06498 | Westbrook | 50 | D | 0 | $424K |
| 10 | 06457 | Middletown | 46 | D | 12 | $280K |
| 11 | 06455 | Middlefield | 45 | D | 14 | $393K |
| 12 | 06416 | Cromwell | 37 | F | 31 (1 health) | $311K |
| 13 | 06414 | Cobalt | — | — | $329K | |
| 14 | 06419 | Killingworth | — | — | $389K | |
| 15 | 06422 | Durham | — | — | 2 | $405K |
| 16 | 06423 | East Haddam | — | — | $374K | |
| 17 | 06424 | East Hampton | — | — | 33 | $323K |
| 18 | 06438 | Haddam | — | — | $377K | |
| 19 | 06441 | Higganum | — | — | $380K | |
| 20 | 06456 | Middle Haddam | — | — | $429K | |
| 21 | 06459 | Middletown | — | — | 3 | — |
| 22 | 06469 | Moodus | — | — | $307K | |
| 23 | 06481 | Rockfall | — | — | 11 | $341K |
Recommended Buyer Guides for Middlesex County
Selection follows a fixed set of rules applied to local records: signals such as PFAS detections, lead action-level exceedances on record, a large share of pre-1978 housing, EPA Radon Zone 1, or a top flood or wildfire risk each add a related guide, and when none applies, general water testing and filtration guides are shown instead.
- Water Filters Certified for PFAS Reduction — PFAS detected in 2 ZIP codes
- Best Lead Paint Test Kits — 62% of homes built before 1980
- 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
Deep Dive Reports
Detailed analysis for Middlesex County, Connecticut
Overview
Middlesex County in Connecticut covers 23 tracked ZIP records with an average Home Safety Score of C (56/100) across 12 scored records.
10 of 16 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 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.