STATE REPORT ND HEALTH VIOLATIONS: 2

North Dakota Home Safety Profiles by ZIP

407 ZIP codes · 53 water systems · UPC plumbing code

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData, NWS, State plumbing boards, Rewiring America

ZipCheckup tracks drinking-water and home-safety data for 407 ZIP codes across North Dakota, covering 53 public water systems that serve about 473,864 people. 39 ZIP codes are mapped to at least one water system with an EPA violation on record.

407
ZIP Codes
53
Water Systems
39
ZIPs with Violations
UPC
Plumbing Code
C · 67
Avg Safety Score
100%
EPA Radon Zone 1 (county-level potential)
#36
of 50 States
0%
ZIPs Rated A or B
20%
ZIPs with Violations
C
North Dakota average: 67/100 - ranked #36 of 50 states. 6 points below the national average (73). Water systems mapped to 20% of ZIP codes have recorded violations.

State averages can hide local differences, and the lower average for North Dakota is a summary, not a finding about any single ZIP code or water system; the reports for individual ZIP codes, cities and water systems show what the average leaves out.

Score Distribution

How North Dakota's 407 ZIP codes are distributed across safety grades.

0
A
0
B
23
C
0
D
0
F
85-10070-8455-6940-540-39

Home Safety Scores by State

Loading map…
F (0-39) D (40-54) C (55-69) B (70-84) A (85+)

Model 4.0.0 inputs: EPA SDWIS, UCMR5 PFAS, EPA radon zones, annual county AQI •

Top 10 ZIP Codes by Home Safety Score in North Dakota

Highest Home Safety Scores in the state.

#ZIP CodeCityCountyScoreGrade
1 58051 KindredCass 67 C
2 58064 PageCass 67 C
3 58071 Tower CityCass 67 C
4 58078 West FargoCass 67 C
5 58102 FargoCass 67 C
6 58103 FargoCass 67 C
7 58104 FargoCass 67 C
8 58105 FargoCass 67 C
9 58501 BismarckBurleigh 67 C
10 58503 BismarckBurleigh 67 C

10 Lowest-Scoring ZIP Codes in North Dakota

#ZIP CodeCityCountyScoreGradeViolations
1 58047 HoraceCass 61 C 9
2 58854 Watford CityMcKenzie 66 C 1
3 58785 SurreyWard 66 C 1
4 58703 MinotWard 66 C 1
5 58701 MinotWard 66 C 1
6 58040 GwinnerCass 66 C 1
7 58734 DonnybrookWard 67 C 0
8 58727 ColumbusBurke 67 C 0
9 58718 BertholdWard 67 C 0
10 58634 Grassy ButteMcKenzie 67 C 0

County Rankings

Water quality breakdown by county. 53 counties with data in North Dakota.

Loading county map…
F (0-39) D (40-54) C (55-69) B (70-84) A (85+)

County-level aggregation of measured ZIP Home Safety Scores • EPA SDWIS, UCMR 5 PFAS, EPA radon zones, EPA AirData

CountyAvg ScoreGradeZIPsBest ZIPWorst ZIP
38001 N/A N/A 2 N/A N/A
38003 N/A N/A 13 N/A N/A
38005 N/A N/A 12 N/A N/A
38007 N/A N/A 2 N/A N/A
38009 N/A N/A 9 N/A N/A
38011 N/A N/A 3 N/A N/A
38013 67 C 6 58727 (67) 58727 (67)
38015 67 C 13 58501 (67) 58521 (67)
38017 66 C 34 58051 (67) 58047 (61)
38019 N/A N/A 10 N/A N/A
38021 N/A N/A 4 N/A N/A
38023 N/A N/A 4 N/A N/A
38025 N/A N/A 6 N/A N/A
38027 N/A N/A 2 N/A N/A
38029 N/A N/A 6 N/A N/A
38031 N/A N/A 4 N/A N/A
38033 N/A N/A 3 N/A N/A
38035 N/A N/A 20 N/A N/A
38037 N/A N/A 5 N/A N/A
38039 N/A N/A 6 N/A N/A
38041 N/A N/A 3 N/A N/A
38043 N/A N/A 6 N/A N/A
38045 N/A N/A 7 N/A N/A
38047 N/A N/A 3 N/A N/A
38049 N/A N/A 12 N/A N/A
38051 N/A N/A 4 N/A N/A
38053 67 C 7 58634 (67) 58854 (66)
38055 N/A N/A 12 N/A N/A
38057 67 C 5 58523 (67) 58523 (67)
38059 N/A N/A 7 N/A N/A
38061 N/A N/A 7 N/A N/A
38063 N/A N/A 7 N/A N/A
38065 N/A N/A 2 N/A N/A
38067 N/A N/A 13 N/A N/A
38069 N/A N/A 3 N/A N/A
38071 N/A N/A 9 N/A N/A
38073 N/A N/A 5 N/A N/A
38075 N/A N/A 4 N/A N/A
38077 N/A N/A 15 N/A N/A
38079 N/A N/A 7 N/A N/A
38081 N/A N/A 7 N/A N/A
38083 N/A N/A 5 N/A N/A
38085 N/A N/A 4 N/A N/A
38087 N/A N/A 2 N/A N/A
38089 N/A N/A 8 N/A N/A
38091 N/A N/A 2 N/A N/A
38093 N/A N/A 14 N/A N/A
38095 N/A N/A 7 N/A N/A
38097 N/A N/A 10 N/A N/A
38099 N/A N/A 10 N/A N/A
38101 66 C 17 58718 (67) 58785 (66)
38103 N/A N/A 7 N/A N/A
38105 N/A N/A 12 N/A N/A

Most Common Contaminants in North Dakota

Contaminant / RuleCategoryZIPs AffectedViolationsHealth Risk
Stage 1 DBP Rule Treatment Technique 24 30 No
Haloacetic Acids (HAA5) Disinfection Byproducts 8 8 Yes
Total Trihalomethanes (TTHM) Disinfection Byproducts 7 7 No
Total Coliform Microbiological 5 5 No
Consumer Confidence Report Rule Reporting 3 13 No
Revised Total Coliform Rule Microbiological 3 9 No
Contaminant 1006 Other 2 5 No
Stage 2 DBP Rule Treatment Technique 2 4 Yes

Overview

We track multi-source home safety signals for 407 ZIP records across North Dakota. Home Safety Score model 4.0.0 is published for 23 scored records; missing required evidence suppresses the score.

The EPA snapshots used for this build directly map water systems to 199 ZIP records, covering 53 community water systems that serve approximately 473,864 people.

39 of 199 ZIP codes with a reported violation count in the available EPA record (20%) have recorded EPA violations. 2 health-based violations appear in the available health breakdown.

Plumbing Regulations

North Dakota follows the Uniform Plumbing Code (2018 edition).

  • Plumbing code: UPC (2018)
  • Homeowner DIY: Allowed with permit
  • Water heater permit: Required
  • Annual backflow test: Required

Full North Dakota regulations →

Areas with Most Violations

ZIP Code City Home Safety Grade Violations Health-Based System
58552 Linton — 11 0 State Line Water Coop Inc.
58204 Grand Forks Afb — 10 0 East Central Regional Water District-gf
58205 Grand Forks Afb — 10 0 East Central Regional Water District-gf
58047 Horace C 9 1 City of Horace
58801 Williston — 2 0 City of Williston
58843 Epping — 2 0 Northwest Rural Water District
58845 Grenora — 2 0 Northwest Rural Water District
58849 Ray — 2 0 Northwest Rural Water District
58852 Tioga — 2 0 R & T Water System
58853 Trenton — 2 0 Northwest Rural Water District

Areas with No Violations

ZIP Code City Home Safety Grade System Population
58008 Barney — Southeast Wud (east) 4,225
58009 Blanchard — East Central Regional Water District-gf 5,995
58015 Christine — Southeast Wud (east) 4,225
58016 Clifford — East Central Regional Water District-gf 5,995
58018 Colfax — Southeast Wud (east) 4,225
58030 Fairmount — Southeast Wud (east) 4,225
58031 Fingal — Barnes Rural Water District 4,938
58035 Galesburg — East Central Regional Water District-gf 5,995
58038 Grandin — East Central Regional Water District-gf 5,995
58041 Hankinson — Southeast Wud (east) 4,225

Home Safety Score

Average Home Safety Score for North Dakota: C (67/100) across 23 scored of 407 tracked ZIP records.

Model 4.0.0 uses the canonical components water-compliance, pfas-mcl-screen, radon-zone, annual-aqi across 3 required domains. The sections below provide additional context and do not change that score. Missing required evidence suppresses the score, and a favorable result is not a property-level safety certification.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0023 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 199 ZIP codes with known status exceed the EPA lead action level

Radon Risk

  • High risk (Zone 1): 400 ZIP codes (100%)
  • Moderate risk (Zone 2): 0 ZIP codes
  • Low risk (Zone 3): 0 ZIP codes

ZIP Code Reports for North Dakota

Largest Communities

ZIP Code City Population Safety Grade Violations
58078 West Fargo 155,620 C 0
58102 Fargo 155,620 C 0
58103 Fargo 155,620 C 0
58104 Fargo 155,620 C 0
58047 Horace 122,541 C 9
58105 Fargo 120,762 C 0
58501 Bismarck 76,674 C 0
58504 Bismarck 76,674 C 0
58503 Bismarck 76,117 C 0
58505 Bismarck 72,417 — 0
58521 Baldwin 72,417 C 0
58201 Grand Forks 66,772 — 0
58203 Grand Forks 66,772 — 0
58202 Grand Forks 57,339 — 0
58701 Minot 56,491 C 1
58703 Minot 48,743 C 1
58707 Minot 48,743 — 1
58768 Norwich 48,743 — 1
58785 Surrey 48,743 C 1
58601 Dickinson 34,216 — 0

Lowest Published Home Safety Scores

ZIP Code City Score Grade Violations
58047 Horace 61 C 9
58040 Gwinner 66 C 1
58701 Minot 66 C 1
58703 Minot 66 C 1
58785 Surrey 66 C 1

Highest Published Home Safety Scores

ZIP Code City Score Grade Violations
58051 Kindred 67 C 0
58064 Page 67 C 0
58071 Tower City 67 C 0
58078 West Fargo 67 C 0
58102 Fargo 67 C 0

All 407 ZIP Codes in North Dakota

Data Sources

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

Largest water systems in North Dakota

The 12 largest community water systems in North Dakota, out of 53 in our data.

Show all 12 water systems

Systems with the most violations in North Dakota

12 systems in North Dakota with the most recorded EPA violations.

Frequently Asked Questions

Is the water safe to drink in North Dakota?

North Dakota has 53 community water systems serving 473,864 people across 407 ZIP codes. There are 42 recorded violations among these water systems, including 2 health-based. 39 of 407 ZIP codes are mapped to at least one water system with a recorded violation.

What plumbing code does North Dakota follow?

North Dakota's listed plumbing code type is UPC as of our last review; local jurisdictions may adopt or amend codes. State rules allow homeowner plumbing work in some cases; check local permit and licensing rules before starting.

What is the radon risk in North Dakota?

100% of ZIP codes in North Dakota are mapped to counties classified as EPA Radon Zone 1 (highest county-level radon potential).

How to cite this page

APA ZipCheckup. (2026). North Dakota Home Safety Profiles by ZIP. https://zipcheckup.com/states/north-dakota/
BibTeX 
@misc{zipcheckup-states-north-dakota,
  author = {{ZipCheckup}},
  title  = {{North Dakota Home Safety Profiles by ZIP}},
  year   = {2026},
  url    = {https://zipcheckup.com/states/north-dakota/}
}

Page version: October 2026.

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