Boston, MA Home Safety: Home Safety 100/100
38 ZIP codes · 2 water systems · Updated
ZipCheckup grade for Boston: A.
Checked records flag no major concern; missing data is unknown.
Tap water system records for Boston, MA support a high grade on this site; review your own system's entries for specifics.
How Boston Compares
Data: EPA SDWIS
Water Quality Map: Boston, MA
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Score Distribution
Safety grade breakdown for Boston's 17 ZIP codes.
Key Facts for Boston Residents
- Average of reported 90th-percentile lead results: 0.0058 mg/L.
- Health risk index (ZipCheckup composite of CDC data): 10.05.
Boston's Water Providers
Among 2 systems linked to Boston, MA, the 2 biggest by population served appear below.
- A
- A
Overview
We track home safety data for 38 ZIP codes in Boston, Massachusetts (population ~232,258), covering 2 community water systems serving approximately 738,838 people region-wide. The EPA snapshots used for this build directly map water systems to 17 of 38 ZIP codes.
The available EPA record reports 0 violations for 17 ZIP codes with a reported violation count.
Home Safety Score
Average Home Safety Score for Boston: A (100/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Boston water systems draw from: Surface water.
Lead & Copper
- Average of reported 90th-percentile lead results: 0.0058 mg/L (EPA action level: 0.015 mg/L)
- 0 of 17 ZIP codes with known status exceed the EPA lead action level
Radon Risk
38 of 38 ZIP records with known zones are in EPA Radon Zone 3.
The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 02108 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
| 02109 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
| 02110 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
| 02111 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
| 02113 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
| 02114 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
| 02115 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
| 02116 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
| 02118 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
| 02127 | A | Boston Water and Sewer Commission (mwra) | 675,647 |
All ZIP Codes in Boston
- 02108 [A]
- 02109 [A]
- 02110 [A]
- 02111 [A]
- 02112
- 02113 [A]
- 02114 [A]
- 02115 [A]
- 02116 [A]
- 02117
- 02118 [A]
- 02123
- 02127 [A]
- 02128 [A]
- 02133 [A]
- 02163 [A]
- 02196
- 02199 [A]
- 02201
- 02203
- 02204
- 02205 [A]
- 02206
- 02210 [A]
- 02211
- 02212
- 02215 [A]
- 02216
- 02217
- 02222
- 02241
- 02266
- 02283
- 02284
- 02293
- 02295
- 02297
- 02298
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Boston Community Health Snapshot
Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Boston: Lead Risk & Vulnerable Populations
Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Available area-level lead records for Boston do not determine the lead level at an individual tap. Testing is the only way to confirm your water's lead content.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Boston: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Boston contains 292 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $17,519. Among ZIP codes with claim records, 57% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Boston, MA