Oldham County, Texas
4 ZIP codes · Avg score 73/100 · Grade B · Updated 2026-06-03
Oldham County's tap water quality puts it in the upper tier nationally; the 4 ZIP codes here record few health-based violations.
How Oldham County Compares
How Oldham County Compares
Oldham County scores 9 points below the Texas state average (82/100) and 5 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 13.4 (asthma 10.2%, diabetes 13.3%)
Estimated additional annual cost per homeowner: $1,048, driven primarily by energy_code_gap
Infrastructure: 0.435% avg pipe failure probability, 75% of ZIPs at high risk
80.5% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,048
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
929 housing units in Oldham County
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 Oldham County
Remediation costs are relatively manageable for most homeowners in Oldham 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 Oldham County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 4 systems in Oldham County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Wildorado Water Supply Corporation | 220 | 15 |
| 2 | Adrian Municipal Water System | 129 | 14 |
| 3 | Vega Municipal Water System | 885 | 5 |
| 4 | Cal Farleys Boys Ranch | 500 | 3 |
All ZIP Codes in Oldham County
4 ZIP codes tracked in Oldham County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 79010 | Boys Ranch | 82 | B | 3 | — |
| 2 | 79001 | Adrian | 78 | B | 14 (1 health) | $144K |
| 3 | 79092 | Vega | 70 | B | 5 | $158K |
| 4 | 79098 | Wildorado | 60 | C | 15 | $141K |
Recommended Buyer Guides for Oldham County
Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.
- Best Lead Paint Test Kits — 80.5% of homes built before 1978
Overview
Oldham County in Texas covers 4 ZIP codes with an average Home Safety Score of B (73/100).
4 of 4 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to Texas water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.