CITY REPORT OK HEALTH VIOLATIONS: 1

Fort Sill, OK: 1 Health Violation - Home Safety 99/100

1 ZIP code · 2 water systems · Updated

ZipCheckup grade for Fort Sill: A.

Checked records flag no major concern; missing data is unknown.

In ZipCheckup's scoring, Fort Sill, OK lands in the A-B grade tier.

How Fort Sill Compares

Fort Sill99/100
Oklahoma avg86/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs Linked to Systems with Violations
A · 99
Avg Safety Score
Zone 3
County Radon Potential (Low)
$300
Est. Remediation

What You Should Know About Fort Sill Water

  • Your city's water systems recorded 6 violations since 2021.
  • Average of reported 90th-percentile lead results: 0.0023 mg/L.
  • Homes built before 1986: 44% - older plumbing may contain lead solder.
  • Estimated remediation: $300 per household.
  • Health risk index (ZipCheckup composite of CDC data): 14.14.

Who Supplies Your Water in Fort Sill

Among 2 systems linked to Fort Sill, OK, the 2 biggest by population served appear below.

Overview

We track home safety data for 1 ZIP code in Fort Sill, Oklahoma (population ~11,433), covering 2 community water systems serving approximately 26,900 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. 1 health-based violation appear in the available health breakdown.

Home Safety Score

Average Home Safety Score for Fort Sill: A (99/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Fort Sill water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0023 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Lead and Copper Rule Revisions Treatment Technique 4 1
Gross Alpha (excl. radon and uranium) Radionuclides 2 1
Combined Uranium Radionuclides 2 1
Combined Radium (-226 and -228) Radionuclides 2 1
Gross Beta Particle Activity Radionuclides 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
73503 A 6 1 Fort Sill Hqusafacfs

All ZIP Codes in Fort Sill

  • 73503 [A] - 6 violations ⚠

Data Sources

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

Health Outcomes in Fort Sill

11.3%
Asthma (US: 9.8%)
12.8%
Diabetes (US: 10.4%)
18.9%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 11.3% ↑
Diabetes 12.8% ↑
Mental Health 18.9% ↑

Vertical line = national average. ■ Above national · ■ Below national

Top Contaminants in Fort Sill Water

Lead and Copper Rule Revisions 4 violations
Treatment Technique
Gross Alpha (excl. radon and uranium) 2 violations
Radionuclides · EPA regulatory level for the contaminant named above: 15 pCi/L
Combined Uranium 2 violations
Radionuclides · EPA regulatory level for the contaminant named above: 0.03 mg/L

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Fort Sill

1997
Median Build Year
44%
Built Before 1986
30%
Built Before 1970
Copper
Likely Pipe Material

With 44% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Buyers and renters in Fort Sill can ask a simple question of any home: was it built before 1986? The citywide median of 1997 will not answer it.

1997
Median Year Built
44%
Pre-1986 (lead solder era; lead paint banned 1978)
30%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (30%) 1970–1986 (14%) Post-1986 (56%)

A significant portion of Fort Sill's housing stock predates 1970, so some homes may have older plumbing materials. Residents in older homes should consider water testing.

Source: U.S. Census Bureau ACS B25034.

Lead Exposure Risk for Children in Fort Sill

44%
Homes Built Before 1986
0.0023
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Deep Dive Reports

Detailed analysis for Fort Sill, OK

Frequently Asked Questions

What does the Home Safety Score mean for Fort Sill, OK?
Fort Sill has an average Home Safety Score of 99/100 (Grade A) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 6 violations appear in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Fort Sill?
EPA records list 6 EPA violations, including 1 health-based violation for Fort Sill water systems. These water-system violations are shown for 1 mapped ZIP code.
Does Fort Sill water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Fort Sill is 0.0023 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Fort Sill compare to Oklahoma average?
Fort Sill has an average Home Safety Score of 99/100, which is at or above the Oklahoma state average of 86/100 for the same model series.
How many water systems serve Fort Sill?
Our records map 2 water systems to 1 ZIP code in Fort Sill. The related population figure in our data is approximately 11,433 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Fort Sill?
Estimated remediation cost per household in Fort Sill: $300; modeled range $150 to $600. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Fort Sill, OK: 1 Health Violation - Home Safety 99/100. https://zipcheckup.com/cities/ok/fort-sill/
BibTeX 
@misc{zipcheckup-cities-ok-fort-sill,
  author = {{ZipCheckup}},
  title  = {{Fort Sill, OK: 1 Health Violation - Home Safety 99/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ok/fort-sill/}
}

Page version: October 2026.

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