COUNTY REPORT OK

Sequoyah County, Oklahoma

8 ZIP codes · Avg score 71/100 · Grade B · Updated

ZipCheckup grade for Sequoyah County: B.

This ZIP looks solid, with a few items worth a quick check.

In current tracking cycles, Sequoyah County - spanning 8 ZIP codes - records above-average water quality outcomes; the county's compliance history over recent years shows few departures from federal standards.

How Sequoyah County Compares

Sequoyah County71/100
Oklahoma avg86/100
National avg73/100

How Sequoyah County Compares

B
County Grade
71/100
Avg Safety Score
8
ZIP Codes
12
Water Systems

Sequoyah County scores 15 points below the Oklahoma state average (86/100) and 2 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:

B
County Grade
71
Avg Safety Score
8
ZIP Codes
Best ZIP: 74946 (83/100)
Lowest ZIP: 74955 (67/100)
$129K
Median Home Value
$1,863
Avg Remediation (144% of home value)

ZIP Code Risk Map

Water Quality Map: Sequoyah County, Oklahoma

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 17.5 (asthma 12.8%, diabetes 16.6%)

Estimated additional annual cost per homeowner: $1,070, driven primarily by flood

57.1% of homes built before 1978 (lead paint era)

Violation History (2021–2025)

→ Stable trend

EPA violation counts by year across Sequoyah County water systems. Health-based shown in red, total in blue.

2021
6 (6 health)
2022
24 (24 health)
2023
1 (1 health)
2024
23 (23 health)
2025
4 (4 health)

Peak year: 2022 with 24 violations. Past 5 years: 58 total (58 health-based).

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 12.8% (national: 8.9%)
Diabetes 16.6% (national: 10.5%)
Obesity 47.1% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1984
Median Build Year
57.1%
Pre-1978 Housing
46/100
Infrastructure Stress Indicator
88%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

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: $1,070

Flood $467/yr
Wildfire $300/yr
Energy Code Gap $158/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

18,418 housing units in Sequoyah County

Pre-1940 3%
1940–1959 7%
1960–1979 31%
1980–1999 37%
2000+ 22%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Water Safety Affordability

How much it costs to fix water issues relative to home values in Sequoyah County

$129K
Median Home Value
$1,863
Est. Remediation Cost
1.4%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Sequoyah County, 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 Sequoyah County residents

Asthma 12.8% (US avg: 8.9%)
Diabetes 16.6% (US avg: 11%)
Obesity 47.1% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems serving Sequoyah County

8 community water systems serving Sequoyah County.

Show all 8 water systems

12 total water systems serve Sequoyah County.

Systems with the most violations in Sequoyah County

5 water systems with recorded EPA violations.

All ZIP Codes in Sequoyah County

8 ZIP codes tracked in Sequoyah County.

# ZIP Code City Safety Score Grade Violations Home Value
1 74946 Moffett 83 B 1 $106K
2 74954 Roland 77 B 8 (3 health) $143K
3 74962 Vian 68 C 24 (14 health) $133K
4 74435 Gore 67 C 32 (15 health) $134K
5 74936 Gans 67 C 25 (5 health) $136K
6 74948 Muldrow 67 C 33 (7 health) $120K
7 74955 Sallisaw 67 C 50 (18 health) $125K
8 74945 Marble City $78K

Recommended Buyer Guides for Sequoyah County

Filtered against EPA monitoring data and CDC lead-exposure guidance, the guides below skip the generic catalog and connect directly to the contaminants and hazards on file here.

Overview

Sequoyah County in Oklahoma covers 8 tracked ZIP records with an average Home Safety Score of B (71/100) across 7 scored records.

7 of 7 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 21 health-based violations appear in the available health breakdown.

← Back to Oklahoma Home Safety Profile

Data Sources

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

Frequently Asked Questions

Is water safe in Sequoyah County?
Sequoyah County receives a grade of B, indicating generally safe tap water across its 8 ZIP codes.
How many water systems serve Sequoyah County?
Sequoyah County is served by 12 public water systems that supply drinking water to residents across 8 ZIP codes.
What is the biggest environmental risk in Sequoyah County?
The primary environmental risk factor in Sequoyah County is flood. This contributes to an estimated additional annual cost of $1,070 per homeowner.
How old are homes in Sequoyah County?
The median home build year in Sequoyah County is 1984. 57.1% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Sequoyah County compare to Oklahoma?
Sequoyah County has an average Home Safety Score of 71/100 under model 4.0.0, which is below the Oklahoma state average of 86/100.

How to cite this page

APA ZipCheckup. (2026). Sequoyah County, OK: HSS 71/100; 21 Health Violations. https://zipcheckup.com/county/oklahoma/sequoyah/
BibTeX
@misc{zipcheckup-county-oklahoma-sequoyah,
  author = {{ZipCheckup}},
  title  = {{Sequoyah County, OK: HSS 71/100; 21 Health Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/oklahoma/sequoyah/}
}

Page version: August 2026.

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