CONGRESSIONAL DISTRICT NH

New Hampshire - 1st District

119th Congress · 114 ZIP codes · Avg score 69/100 · Grade C · Updated N/A

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

ZipCheckup's versioned Home Safety Profile covers 114 ZIP codes in New Hampshire's 1st District: the measured model 4.0.0 average is Grade C (69/100). 228 EPA violations on record, 44 health-based.

C
District Grade
69
Avg Safety Score
114
ZIP Codes
228
Total Violations
44
Health Violations
78
Water Systems
Best ZIP: 03077 (83/100)
Lowest ZIP: 03865 (64/100)

Top Contaminants

Stage 1 DBP Rule (24) Combined Radium (22) Total Trihalomethanes (TTHM) (20) Consumer Confidence Report Rule (20) Lead and Copper Rule (12)

ZIP Codes in This District

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

# ZIP Code City Safety Score Grade Violations
1 03077 Raymond 83 B 1 (1 health)
2 03857 Newmarket 83 B 0
3 03246 Laconia 82 B 5
4 03054 Merrimack 75 B 25
5 03103 Manchester 67 C 0
6 03106 Hooksett 67 C 0
7 03109 Manchester 67 C 0
8 03110 Bedford 67 C 0
9 03833 Exeter 67 C 1 (1 health)
10 03840 Greenland 67 C 0
11 03038 Derry 66 C 2 (1 health)
12 03053 Londonderry 66 C 2
13 03801 Portsmouth 66 C 1
14 03841 Hampstead 66 C 1
15 03854 New Castle 66 C 1
16 03862 North Hampton 66 C 2
17 03885 Stratham 66 C 2
18 03870 Rye 65 C 4 (1 health)
19 03874 Seabrook 65 C 5
20 03842 Hampton 64 C 6 (1 health)
21 03865 Plaistow 64 C 4 (4 health)
22 03032 Auburn N/A N/A N/A
23 03034 Candia N/A N/A N/A
24 03036 Chester N/A N/A N/A
25 03040 East Candia N/A N/A N/A
26 03041 East Derry N/A N/A N/A
27 03042 Epping N/A N/A 3
28 03044 Fremont N/A N/A N/A
29 03045 Goffstown N/A N/A 12 (3 health)
30 03101 Manchester N/A N/A 0
31 03102 Manchester N/A N/A 0
32 03104 Manchester N/A N/A 0
33 03105 Manchester N/A N/A N/A
34 03107 Manchester N/A N/A N/A
35 03108 Manchester N/A N/A N/A
36 03111 Manchester N/A N/A N/A
37 03218 Barnstead N/A N/A 0
38 03220 Belmont N/A N/A 0
39 03225 Center Barnstead N/A N/A 0
40 03237 Gilmanton N/A N/A N/A
41 03247 Laconia N/A N/A N/A
42 03249 Gilford N/A N/A 15 (1 health)
43 03252 Lochmere N/A N/A N/A
44 03253 Meredith N/A N/A 6 (3 health)
45 03254 Moultonborough N/A N/A N/A
46 03269 Sanbornton N/A N/A N/A
47 03276 Tilton N/A N/A 1
48 03289 Winnisquam N/A N/A N/A
49 03290 Nottingham N/A N/A N/A
50 03291 West Nottingham N/A N/A N/A

Overview

New Hampshire's 1st District encompasses 114 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (69/100).

228 EPA violations have been recorded across this district's water systems. 44 are health-based violations. About 63% of the 64 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 - 24 violations
  • Combined Radium - 22 violations
  • Total Trihalomethanes (TTHM) - 20 violations
  • Consumer Confidence Report Rule - 20 violations
  • Lead and Copper Rule - 12 violations

Housing Context

Homes in this district were built on average around 1980 (~46 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.

Lead Alert: 6 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 114 ZIP codes in New Hampshire's 1st District.

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How to cite this page

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

Page version: August 2026.

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