Baltimore City, Maryland
42 ZIP codes · Avg score 64/100 · Grade C · Updated
ZipCheckup grade for Baltimore City: C.
A mixed picture - some signals here are worth your attention.
Monitoring figures for Baltimore City indicate average water quality overall - some ZIP codes among the 42 tracked have recorded health-based violations, while others operate cleanly, making individual ZIP-level data the most actionable reference point.
How Baltimore City Compares
How Baltimore City Compares
Baltimore City scores 5 points below the Maryland state average (69/100) and 9 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: Baltimore City, Maryland
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14 (asthma 12.7%, diabetes 14.4%)
Estimated additional annual cost per homeowner: $1,831, driven primarily by flood
Violation History (2022–2024)
→ Stable trendEPA violation counts by year across Baltimore City water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 44 violations. Past 5 years: 67 total (67 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
City 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: $1,831
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 Baltimore City
Remediation costs are relatively manageable for most homeowners in Baltimore City, 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 Baltimore City residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Baltimore City
4 community water systems serving Baltimore City.
- C
- C
- C
- C
Systems with the most violations in Baltimore City
3 water systems with recorded EPA violations.
- C
- C
- C
Environmental Justice Indicator
Baltimore City scores in the 74th percentile on the EPA EJScreen composite index, indicating elevated environmental burden relative to the national average. Approximately 59% of residents live in areas classified as disadvantaged communities. EJScreen measures cumulative environmental and demographic factors including air quality, proximity to hazardous sites, and socioeconomic vulnerability. Learn more at EPA.gov
All ZIP Codes in Baltimore City
42 ZIP codes tracked in Baltimore City.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 21201 | Baltimore | 64 | C | 9 (2 health) | $222K |
| 2 | 21202 | Baltimore | 64 | C | 9 (2 health) | $308K |
| 3 | 21205 | Baltimore | 64 | C | 9 (2 health) | $95K |
| 4 | 21206 | Baltimore | 64 | C | 9 (2 health) | $214K |
| 5 | 21207 | Gwynn Oak | 64 | C | 9 (2 health) | $248K |
| 6 | 21209 | Baltimore | 64 | C | 9 (2 health) | $419K |
| 7 | 21212 | Baltimore | 64 | C | 9 (2 health) | $358K |
| 8 | 21213 | Baltimore | 64 | C | 9 (2 health) | $135K |
| 9 | 21214 | Baltimore | 64 | C | 9 (2 health) | $251K |
| 10 | 21215 | Baltimore | 64 | C | 9 (2 health) | $190K |
| 11 | 21216 | Baltimore | 64 | C | 9 (2 health) | $149K |
| 12 | 21217 | Baltimore | 64 | C | 9 (2 health) | $176K |
| 13 | 21218 | Baltimore | 64 | C | 9 (2 health) | $230K |
| 14 | 21223 | Baltimore | 64 | C | 9 (2 health) | $94K |
| 15 | 21224 | Baltimore | 64 | C | 9 (2 health) | $281K |
| 16 | 21230 | Baltimore | 64 | C | 9 (2 health) | $328K |
| 17 | 21231 | Baltimore | 64 | C | 9 (2 health) | $337K |
| 18 | 21233 | Baltimore | 64 | C | 9 (2 health) | — |
| 19 | 21239 | Baltimore | 64 | C | 9 (2 health) | $191K |
| 20 | 21287 | Baltimore | 64 | C | 9 (2 health) | — |
| 21 | 21210 | Baltimore | 62 | C | 13 (3 health) | $522K |
| 22 | 21211 | Baltimore | 62 | C | 13 (3 health) | $274K |
| 23 | 21229 | Baltimore | 60 | C | 18 (3 health) | $185K |
| 24 | 21235 | Baltimore | — | — | — | |
| 25 | 21241 | Baltimore | — | — | — | |
| 26 | 21260 | Baltimore | — | — | — | |
| 27 | 21263 | Baltimore | — | — | — | |
| 28 | 21264 | Baltimore | — | — | — | |
| 29 | 21265 | Baltimore | — | — | — | |
| 30 | 21270 | Baltimore | — | — | — | |
| 31 | 21273 | Baltimore | — | — | — | |
| 32 | 21274 | Baltimore | — | — | — | |
| 33 | 21275 | Baltimore | — | — | — | |
| 34 | 21278 | Baltimore | — | — | — | |
| 35 | 21279 | Baltimore | — | — | — | |
| 36 | 21280 | Baltimore | — | — | — | |
| 37 | 21281 | Baltimore | — | — | — | |
| 38 | 21283 | Baltimore | — | — | — | |
| 39 | 21288 | Baltimore | — | — | — | |
| 40 | 21289 | Baltimore | — | — | — | |
| 41 | 21290 | Baltimore | — | — | — | |
| 42 | 21297 | Baltimore | — | — | — |
Recommended Buyer Guides for Baltimore City
Strictly editorial - no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- 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 city
- 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 Baltimore City, Maryland
Overview
Baltimore City in Maryland covers 42 tracked ZIP records with an average Home Safety Score of C (64/100) across 23 scored records.
23 of 23 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 4 health-based violations appear in the available health breakdown.
← Back to Maryland 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.