COUNTY REPORT TX

Jeff Davis County, Texas

2 ZIP codes · Avg score 75/100 · Grade B · Updated 2026-06-03

Covering 2 ZIP codes, Jeff Davis County earns a high grade for tap water — most systems report zero health-based violations, and the overall compliance rate comfortably exceeds federal benchmarks.

How Jeff Davis County Compares

Jeff Davis County75/100
Texas avg82/100
National avg68/100

How Jeff Davis County Compares

B
County Grade
75/100
Avg Safety Score
2
ZIP Codes
2
Water Systems

Jeff Davis County scores 7 points below the Texas state average (82/100) and 7 points above the national average (68/100).

Data: EPA SDWIS Last verified: 2026-06-03

B
County Grade
75
Avg Safety Score
2
ZIP Codes
Best ZIP: 79734 (83/100)
Lowest ZIP: 79854 (67/100)
$168K
Median Home Value
$550
Avg Remediation (33% of home value)

Key Risk Factors

Health risk index: 17.4 (asthma 9.8%, diabetes 21.2%)

Estimated additional annual cost per homeowner: $905, driven primarily by energy_code_gap

Infrastructure: 0.42% avg pipe failure probability, 50% of ZIPs at high risk

62.5% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 9.8% (national: 8.9%)
Diabetes 21.2% (national: 10.5%)
Obesity 37.9% (national: 32.4%)

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

Infrastructure Overview

1962
Median Build Year
62.5%
Pre-1978 Housing
42%
Pipe Failure Probability
50%
ZIPs at High Infra Risk
Moderate
Lead Pipe Risk

Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $905

Energy Code Gap $405/yr
Wildfire $300/yr
Water / Lead $200/yr

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

Housing Age Distribution

1,810 housing units in Jeff Davis County

Pre-1940 5%
1940–1959 7%
1960–1979 16%
1980–1999 43%
2000+ 29%

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 Jeff Davis County

$168K
Median Home Value
$550
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Jeff Davis 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 Jeff Davis County residents

Asthma 9.8% (US avg: 8.9%)
Diabetes 21.2% (US avg: 11%)
Obesity 37.9% (US avg: 32.4%)

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

All ZIP Codes in Jeff Davis County

2 ZIP codes tracked in Jeff Davis County.

# ZIP Code City Safety Score Grade Violations Home Value
1 79734 Fort Davis 83 B 0 $251K
2 79854 Valentine 67 C 13 (1 health) $85K

Recommended Buyer Guides for Jeff Davis County

Independent picks. EPA-grounded. Matched here.

Overview

Jeff Davis County in Texas covers 2 ZIP codes with an average Home Safety Score of B (75/100).

1 of 2 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.

← Back to Texas water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Jeff Davis County?
Jeff Davis County receives a grade of B, indicating generally safe tap water across its 2 ZIP codes.
How many water systems serve Jeff Davis County?
Jeff Davis County is served by 2 public water systems that supply drinking water to residents across 2 ZIP codes.
What is the biggest environmental risk in Jeff Davis County?
The primary environmental risk factor in Jeff Davis County is energy_code_gap. This contributes to an estimated additional annual cost of $905 per homeowner.
How old are homes in Jeff Davis County?
The median home build year in Jeff Davis County is 1962. 62.5% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Jeff Davis County compare to Texas?
Jeff Davis County has an average water safety score of 75/100, which is below the Texas state average of 82/100.

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