COUNTY REPORT OK

McClain County, Oklahoma

Name: Home Safety Data for McClain County, Oklahoma
Creator: ZipCheckup
License: https://creativecommons.org/licenses/by/4.0/

7 ZIP codes · Avg score 87/100 · Grade A

ZipCheckup grade for McClain County: A.

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

McClain County earns an A or B, the top two of ZipCheckup's five grades, based on the average composite Home Safety Score of its scored ZIP codes. That composite can draw on drinking water records, radon zones, PFAS monitoring and air quality data, so a strong grade summarizes several sources and is not a reading from anyone's tap. Scores also vary from one ZIP code to another, and the 7 ZIP reports listed for the county show where each one stands.

How McClain County Compares

McClain County87/100

Oklahoma avg86/100

National avg73/100

How McClain County Compares

County Grade

87/100

Avg Safety Score

ZIP Codes

Water Systems

McClain County scores 1 points above the Oklahoma state average (86/100) and 14 points above the national average (73/100).

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

County Grade

Avg Safety Score

ZIP Codes

Byars

Best ZIP: 74831 (94/100)

Washington

Lowest ZIP: 73093 (83/100)

$224K

Median Home Value

$1,244

Avg Remediation (0.56% of home value)

ZIP Code Risk Map

Water Quality Map: McClain 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: 13.6 (asthma 11.1%, diabetes 11.3%)

Modeled additional annual cost estimate per homeowner: $764, largest modeled factor: Flood

32% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 11.1% (national: 8.9%)

Diabetes 11.3% (national: 10.5%)

Obesity 38.5% (national: 32.4%)

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

Infrastructure Overview

1987

Median Build Year

32%

Pre-1980 Housing

38/100

Infrastructure Stress Indicator

29%

ZIPs with High Infrastructure Stress

Low

Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $764

Flood $400/yr

Water / Lead $192/yr

Wildfire $129/yr

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

Housing Age Distribution

18,018 housing units in McClain County

Pre-1940 3%

1940–1959 6%

1960–1979 23%

1980–1999 26%

2000+ 43%

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 McClain County

$224K

Median Home Value

$1,244

Est. Remediation Cost

0.6%

of Home Value

Remediation as % of home value low burden

Modeled remediation costs in McClain County can be compared with the median property value; actual costs vary by property.

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 McClain County residents

Asthma 11.1% (US avg: 8.9%)

Diabetes 11.3% (US avg: 11%)

Obesity 38.5% (US avg: 32.4%)

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

Water systems mapped to McClain County ZIP codes

8 community water systems mapped to McClain County ZIP codes; EPA may list more systems serving the county.

Newcastle
Serves ~7,900 people 4 violations

B
Purcell
Serves ~6,693 people 4 violations

B
Pontotoc Company Rwd # 8
Serves ~4,250 people

A
Grady Company Rwd #6
Serves ~3,930 people 66 violations

B
Blanchard
Serves ~2,966 people 2 violations

A
Goldsby Water Authority Trust
Serves ~2,000 people 2 violations

B

Show all 8 water systems

Mcclain Company Rwd # 8
Serves ~1,897 people 15 violations

A
Garvin Company Rwd #2
Serves ~1,570 people 2 violations

13 water systems mapped to McClain County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in McClain County

5 water systems with violations in EPA records.

Grady Company Rwd #6
Serves ~3,930 people 66 violations

B
Washington
Serves ~600 people 35 violations

B
Mcclain Company Rwd # 8
Serves ~1,897 people 15 violations

A
Cole
Serves ~473 people 9 violations

B
Newcastle
Serves ~7,900 people 4 violations

B

All ZIP Codes in McClain County

7 ZIP codes tracked in McClain County.

#	ZIP Code	City	Safety Score	Grade	Violations	Home Value
1	74831	Byars	94	A	15	$121K
2	73065	Newcastle	92	A	17 (3 health)	$240K
3	73010	Blanchard	83	B	677 (18 health)	$242K
4	73080	Purcell	83	B	74 (6 health)	$207K
5	73093	Washington	83	B	56 (4 health)	$280K
6	73031	Dibble	—	—		—
7	73095	Wayne	—	—	22 (2 health)	$154K

Recommended Buyer Guides for McClain County

Which guides appear depends on what the county data show.

Water Filters Certified for PFAS Reduction — PFAS detected in 1 ZIP code
Best Water Filters for Lead — Lead above EPA action level in 4 ZIP codes
Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Best Sump Pumps — Flood is the top compound risk factor
Best Mold Test Kits — Flood-driven moisture and mold risk

Deep Dive Reports

Detailed analysis for McClain County, Oklahoma

💧

Water Quality

EPA violations, contaminant trends, and enforcement actions across the county

⚠️

Lead Risk

Lead exposure scores, housing age analysis, and LCR testing trends

🏠

Home Affordability

Remediation costs vs. home values, equity trap analysis by ZIP

$1,244 avg remediation

🌊

Flood Risk

NFIP claim history and recorded rated-zone context across the county, plus FEMA property-map guidance

Overview

McClain County in Oklahoma covers 7 tracked ZIP records with an average Home Safety Score of A (87/100) across 5 scored records.

6 of 6 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

Water quality: EPA Safe Drinking Water Information System (SDWIS)
PFAS screening: EPA UCMR 5
Radon zones: EPA Map of Radon Zones
Air quality: EPA AirData annual AQI
Home values: U.S. Census Bureau ACS (median estimates by ZCTA)

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

Frequently Asked Questions

Is water safe in McClain County?

McClain County receives an average Home Safety grade of A from its scored ZIP records (7 ZIP codes tracked); this is a composite index, not a tap-water test.

How many water systems serve McClain County?

We map 13 public water systems to 7 ZIP codes in our data for McClain County. EPA may list more systems serving the county, so this is not a full count.

What is the biggest environmental risk in McClain County?

In ZipCheckup's cost model, the factor with the largest estimated average annual cost in McClain County is flood. Across all modeled risk factors, the estimated average additional annual cost is $764 per homeowner; actual costs vary by home.

How old are homes in McClain County?

The median home build year in McClain County is 1987. 32% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.

How does McClain County compare to Oklahoma?

McClain County has an average Home Safety Score of 87/100 under model 4.0.0, which is at or above the Oklahoma state average of 86/100.

Explore More

Flood Risk Rankings 2026 Lead Risk Rankings 2026 Water Safety Rankings 2026 Home Safety Rankings 2026 Water Filter Matcher Find the right filter for your water Home Safety Score Full safety breakdown by ZIP

Oklahoma State Overview →