Barnstable County, Massachusetts
55 ZIP codes · Avg score 79/100 · Grade B · Updated
ZipCheckup grade for Barnstable County: B.
This ZIP looks solid, with a few items worth a quick check.
Barnstable County - 55 ZIP codes, above-average safety grade.
How Barnstable County Compares
How Barnstable County Compares
Barnstable County scores 9 points above the Massachusetts state average (70/100) and 6 points above 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: Barnstable County, Massachusetts
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.9 (asthma 11.5%, diabetes 10.7%)
Estimated additional annual cost per homeowner: $2,839, driven primarily by flood
72.2% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Barnstable County water systems. Health-based shown in red, total in blue.
Peak year: 2021 with 1 violation. Past 5 years: 2 total (2 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
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: $2,839
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
166,527 housing units in Barnstable 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 Barnstable County
Remediation costs are relatively manageable for most homeowners in Barnstable 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.
Health Outcomes vs National Average
CDC PLACES data for Barnstable County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Barnstable County
8 community water systems serving Barnstable County.
- B
- B
- C
- B
- C
- B
Show all 8 water systems
- C
- B
21 total water systems serve Barnstable County.
Systems with the most violations in Barnstable County
5 water systems with recorded EPA violations.
- C
- C
- B
- C
All ZIP Codes in Barnstable County
55 ZIP codes tracked in Barnstable County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 02536 | East Falmouth | 83 | B | 0 | $497K |
| 2 | 02537 | East Sandwich | 83 | B | 1 | $618K |
| 3 | 02540 | Falmouth | 83 | B | 0 | $756K |
| 4 | 02543 | Woods Hole | 83 | B | 0 | $909K |
| 5 | 02553 | Monument Beach | 83 | B | 0 | — |
| 6 | 02556 | North Falmouth | 83 | B | 0 | $659K |
| 7 | 02561 | Sagamore | 83 | B | 0 | $462K |
| 8 | 02562 | Sagamore Beach | 83 | B | 1 | $576K |
| 9 | 02563 | Sandwich | 83 | B | 1 | $553K |
| 10 | 02601 | Hyannis | 83 | B | 1 | $409K |
| 11 | 02631 | Brewster | 83 | B | 0 | $622K |
| 12 | 02633 | Chatham | 83 | B | 0 | $881K |
| 13 | 02635 | Cotuit | 83 | B | 1 | $650K |
| 14 | 02639 | Dennis Port | 83 | B | 0 | $452K |
| 15 | 02641 | East Dennis | 83 | B | 0 | $1025K |
| 16 | 02642 | Eastham | 83 | B | 0 | $668K |
| 17 | 02643 | East Orleans | 83 | B | 0 | — |
| 18 | 02644 | Forestdale | 83 | B | 1 | $459K |
| 19 | 02645 | Harwich | 83 | B | 0 | $581K |
| 20 | 02649 | Mashpee | 83 | B | 0 | $516K |
| 21 | 02650 | North Chatham | 83 | B | 0 | $974K |
| 22 | 02652 | North Truro | 83 | B | 0 | $844K |
| 23 | 02653 | Orleans | 83 | B | 0 | $817K |
| 24 | 02657 | Provincetown | 83 | B | 0 | $770K |
| 25 | 02659 | South Chatham | 83 | B | 0 | $650K |
| 26 | 02660 | South Dennis | 83 | B | 0 | $503K |
| 27 | 02670 | West Dennis | 83 | B | 0 | $647K |
| 28 | 02664 | South Yarmouth | 82 | B | 2 | $479K |
| 29 | 02673 | West Yarmouth | 82 | B | 2 | $445K |
| 30 | 02534 | Cataumet | 67 | C | 0 | $1011K |
| 31 | 02559 | Pocasset | 67 | C | 0 | $564K |
| 32 | 02630 | Barnstable | 67 | C | 0 | $686K |
| 33 | 02632 | Centerville | 67 | C | 1 | $542K |
| 34 | 02637 | Cummaquid | 67 | C | 0 | $861K |
| 35 | 02648 | Marstons Mills | 67 | C | 1 | $581K |
| 36 | 02655 | Osterville | 67 | C | 1 | $746K |
| 37 | 02668 | West Barnstable | 67 | C | 1 | $622K |
| 38 | 02532 | Buzzards Bay | 66 | C | 1 | $477K |
| 39 | 02675 | Yarmouth Port | 65 | C | 2 | $544K |
| 40 | 02541 | Falmouth | — | — | — | |
| 41 | 02542 | Buzzards Bay | — | — | — | |
| 42 | 02574 | West Falmouth | — | — | — | |
| 43 | 02634 | Centerville | — | — | — | |
| 44 | 02638 | Dennis | — | — | 0 | $714K |
| 45 | 02646 | Harwich Port | — | — | 0 | $724K |
| 46 | 02647 | Hyannis Port | — | — | 0 | — |
| 47 | 02651 | North Eastham | — | — | — | |
| 48 | 02661 | South Harwich | — | — | — | |
| 49 | 02662 | South Orleans | — | — | — | |
| 50 | 02663 | South Wellfleet | — | — | 2 | $663K |
| 51 | 02666 | Truro | — | — | 0 | $671K |
| 52 | 02667 | Wellfleet | — | — | 2 | $760K |
| 53 | 02669 | West Chatham | — | — | — | |
| 54 | 02671 | West Harwich | — | — | 0 | $594K |
| 55 | 02672 | West Hyannisport | — | — | 1 | — |
Recommended Buyer Guides for Barnstable County
Below: editorial picks, no sponsored placements.
- Best Lead Paint Test Kits — 72.2% of homes built before 1978
- 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 Barnstable County, Massachusetts
Overview
Barnstable County in Massachusetts covers 55 tracked ZIP records with an average Home Safety Score of B (79/100) across 39 scored records.
17 of 47 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.
← Back to Massachusetts 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.