CONGRESSIONAL DISTRICT MD

Maryland - 1st District

119th Congress · 159 ZIP codes · Avg score 63/100 · Grade C · Updated N/A

Data: EPA SDWIS / Census 119th Congress Last verified: N/A

ZipCheckup's versioned Home Safety Profile covers 159 ZIP codes in Maryland's 1st District: the measured model 4.0.0 average is Grade C (63/100). 407 EPA violations on record, 104 health-based.

C
District Grade
63
Avg Safety Score
159
ZIP Codes
407
Total Violations
104
Health Violations
61
Water Systems
Cambridge
Best ZIP: 21613 (100/100)
Aberdeen
Lowest ZIP: 21001 (48/100)

Top Contaminants

Stage 1 DBP Rule (63) Stage 2 DBP Rule (54) Total Trihalomethanes (TTHM) (50) Haloacetic Acids (HAA5) (47) Lead (36)

ZIP Codes in This District

100 ZIP codes tracked in Maryland's 1st District. Showing top 50 by safety score.

# ZIP Code City Safety Score Grade Violations
1 21613 Cambridge 100 A 0
2 21914 Charlestown 82 B 4 (1 health)
3 21901 North East 77 B 16 (11 health)
4 21903 Perryville 67 C 54 (16 health)
5 21009 Abingdon 66 C 3
6 21017 Belcamp 66 C 3
7 21040 Edgewood 66 C 3
8 21085 Joppa 66 C 3
9 21130 Perryman 66 C 3
10 21128 Perry Hall 64 C 9 (2 health)
11 21162 White Marsh 64 C 9 (2 health)
12 21087 Kingsville 63 C 12 (2 health)
13 21078 Havre De Grace 59 C 22 (1 health)
14 21921 Elkton 58 C 19 (12 health)
15 21005 Aberdeen Proving Ground 49 D 3
16 21014 Bel Air 49 D 3
17 21015 Bel Air 49 D 3
18 21047 Fallston 49 D 3
19 21050 Forest Hill 49 D 3
20 21001 Aberdeen 48 D 5
21 21010 Gunpowder N/A N/A N/A
22 21013 Baldwin N/A N/A N/A
23 21018 Benson N/A N/A N/A
24 21027 Chase N/A N/A N/A
25 21028 Churchville N/A N/A 0
26 21034 Darlington N/A N/A 0
27 21051 Fork N/A N/A N/A
28 21057 Glen Arm N/A N/A 9 (2 health)
29 21082 Hydes N/A N/A N/A
30 21084 Jarrettsville N/A N/A 3
31 21092 Long Green N/A N/A N/A
32 21105 Maryland Line N/A N/A N/A
33 21111 Monkton N/A N/A 9 (2 health)
34 21132 Pylesville N/A N/A N/A
35 21154 Street N/A N/A N/A
36 21156 Upper Falls N/A N/A N/A
37 21160 Whiteford N/A N/A N/A
38 21161 White Hall N/A N/A N/A
39 21601 Easton N/A N/A 0
40 21606 Easton N/A N/A N/A
41 21607 Barclay N/A N/A N/A
42 21609 Bethlehem N/A N/A N/A
43 21610 Betterton N/A N/A N/A
44 21612 Bozman N/A N/A 2
45 21617 Centreville N/A N/A 7 (1 health)
46 21619 Chester N/A N/A 2
47 21620 Chestertown N/A N/A 2 (1 health)
48 21622 Church Creek N/A N/A N/A
49 21623 Church Hill N/A N/A 5 (1 health)
50 21624 Claiborne N/A N/A N/A

Overview

Maryland's 1st District encompasses 159 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (63/100).

407 EPA violations have been recorded across this district's water systems. 104 are health-based violations. About 81% of the 75 ZIP records with a reported violation count have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • Stage 1 DBP Rule - 63 violations
  • Stage 2 DBP Rule - 54 violations
  • Total Trihalomethanes (TTHM) - 50 violations
  • Haloacetic Acids (HAA5) - 47 violations
  • Lead - 36 violations

Housing Context

Homes in this district were built on average around 1973 (~53 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.

Lead Alert: 2 ZIP codes in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.

Data Sources

Updated daily. Data covers 159 ZIP codes in Maryland's 1st District.

← Back to Maryland overview

How to cite this page

APA ZipCheckup. (2026). Lead Risk in Maryland 1st District (MD-1). https://zipcheckup.com/congressional/md-1/
BibTeX 
@misc{zipcheckup-congressional-md-1,
  author = {{ZipCheckup}},
  title  = {{Lead Risk in Maryland 1st District (MD-1)}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/md-1/}
}

Page version: August 2026.

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