COUNTY REPORT MA

Norfolk County, Massachusetts

46 ZIP codes · Avg score 72/100 · Grade B · Updated

ZipCheckup grade for Norfolk County: B.

This ZIP looks solid, with a few items worth a quick check.

Across all 46 ZIP codes in Norfolk County, tap water consistently meets or exceeds federal safety standards.

How Norfolk County Compares

Norfolk County72/100
Massachusetts avg70/100
National avg73/100

How Norfolk County Compares

B
County Grade
72/100
Avg Safety Score
46
ZIP Codes
39
Water Systems

Norfolk County scores 2 points above the Massachusetts state average (70/100) and 1 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:

B
County Grade
72
Avg Safety Score
46
ZIP Codes
East Walpole
Best ZIP: 02032 (83/100)
Norfolk
Lowest ZIP: 02056 (50/100)
$630K
Median Home Value
$2,013
Avg Remediation (32% of home value)

ZIP Code Risk Map

Water Quality Map: Norfolk County, Massachusetts

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 10.3 (asthma 10.7%, diabetes 9%)

Estimated additional annual cost per homeowner: $2,498, driven primarily by flood

74.5% of homes built before 1978 (lead paint era)

Violation History (2021–2024)

↓ Improving trend

EPA violation counts by year across Norfolk County water systems. Health-based shown in red, total in blue.

2021
12 (12 health)
2022
3 (3 health)
2023
2 (2 health)
2024
9 (9 health)

Peak year: 2021 with 12 violations. Past 5 years: 26 total (26 health-based). Health-based violations are declining versus the prior 2-year window.

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 10.7% (national: 8.9%)
Diabetes 9% (national: 10.5%)
Obesity 23.5% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1964
Median Build Year
74.5%
Pre-1978 Housing
50/100
Infrastructure Stress Indicator
86%
ZIPs with High Infrastructure Stress
High
Lead Pipe Risk

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: $2,498

Flood $1,239/yr
Energy Code Gap $533/yr
Sea Level Rise $400/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

295,102 housing units in Norfolk County

Pre-1940 27%
1940–1959 19%
1960–1979 22%
1980–1999 18%
2000+ 14%

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 Norfolk County

$630K
Median Home Value
$2,013
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Norfolk 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 Norfolk County residents

Asthma 10.7% (US avg: 8.9%)
Diabetes 9% (US avg: 11%)
Obesity 23.5% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems serving Norfolk County

8 community water systems serving Norfolk County.

Show all 8 water systems

39 total water systems serve Norfolk County.

Systems with the most violations in Norfolk County

5 water systems with recorded EPA violations.

All ZIP Codes in Norfolk County

46 ZIP codes tracked in Norfolk County.

# ZIP Code City Safety Score Grade Violations Home Value
1 02032 East Walpole 83 B 0 $673K
2 02062 Norwood 83 B 0 $614K
3 02071 South Walpole 83 B 0 $590K
4 02081 Walpole 83 B 0 $647K
5 02169 Quincy 83 B 0 $552K
6 02170 Quincy 83 B 0 $662K
7 02171 Quincy 83 B 0 $630K
8 02186 Milton 83 B 0 $897K
9 02188 Weymouth 83 B 1 $543K
10 02189 East Weymouth 83 B 1 $463K
11 02190 South Weymouth 83 B 1 $555K
12 02191 North Weymouth 83 B 1 $492K
13 02445 Brookline 83 B 0 $1218K
14 02446 Brookline 83 B 0 $1173K
15 02467 Chestnut Hill 81 B 2 $1249K
16 02053 Medway 67 C 0 $589K
17 02054 Millis 67 C 0 $570K
18 02067 Sharon 67 C 0 $698K
19 02072 Stoughton 67 C 1 $497K
20 02492 Needham 67 C 0 $1177K
21 02494 Needham Heights 67 C 0 $1052K
22 02762 Plainville 67 C 0 $461K
23 02025 Cohasset 66 C 62 $1093K
24 02026 Dedham 66 C 1 (1 health) $630K
25 02035 Foxboro 66 C 1 $582K
26 02052 Medfield 66 C 1 $869K
27 02090 Westwood 66 C 1 (1 health) $986K
28 02019 Bellingham 65 C 3 (2 health) $426K
29 02021 Canton 65 C 1 $666K
30 02030 Dover 65 C 2 $1286K
31 02184 Braintree 65 C 2 $623K
32 02343 Holbrook 65 C 1 $435K
33 02368 Randolph 65 C 1 $464K
34 02481 Wellesley Hills 65 C 1 $1643K
35 02482 Wellesley 64 C 2 $1255K
36 02093 Wrentham 63 C 9 (3 health) $600K
37 02038 Franklin 61 C 12 (8 health) $567K
38 02056 Norfolk 50 D 140 $694K
39 02027 Dedham — — —
40 02070 Sheldonville — — —
41 02185 Braintree — — —
42 02187 Milton Village — — —
43 02269 Quincy — — —
44 02322 Avon — — 1 $483K
45 02447 Brookline Village — — —
46 02457 Babson Park — — 1 —

Recommended Buyer Guides for Norfolk County

Designed to find the guide that fits the county, not the other way around - the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.

Deep Dive Reports

Detailed analysis for Norfolk County, Massachusetts

Overview

Norfolk County in Massachusetts covers 46 tracked ZIP records with an average Home Safety Score of B (72/100) across 38 scored records.

24 of 40 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 14 health-based violations appear in the available health breakdown.

← Back to Massachusetts Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

Is water safe in Norfolk County?
Norfolk County receives a grade of B, indicating generally safe tap water across its 46 ZIP codes.
How many water systems serve Norfolk County?
Norfolk County is served by 39 public water systems that supply drinking water to residents across 46 ZIP codes.
What is the biggest environmental risk in Norfolk County?
The primary environmental risk factor in Norfolk County is flood. This contributes to an estimated additional annual cost of $2,498 per homeowner.
How old are homes in Norfolk County?
The median home build year in Norfolk County is 1964. 74.5% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Norfolk County compare to Massachusetts?
Norfolk County has an average Home Safety Score of 72/100 under model 4.0.0, which is above the Massachusetts state average of 70/100.

How to cite this page

APA ZipCheckup. (2026). Norfolk County, MA: HSS 72/100; PFAS Found in Water. https://zipcheckup.com/county/massachusetts/norfolk/
BibTeX 
@misc{zipcheckup-county-massachusetts-norfolk,
  author = {{ZipCheckup}},
  title  = {{Norfolk County, MA: HSS 72/100; PFAS Found in Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/massachusetts/norfolk/}
}

Page version: August 2026.

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