Garfield County, Oklahoma
18 ZIP codes · Avg score 86/100 · Grade A · Updated 2026-07-19
ZipCheckup grade for Garfield: A.
No federal data flags a major home-safety concern for this ZIP.
Spanning 18 ZIP codes, Garfield County posts strong drinking water compliance - most systems have never triggered a health-based notice.
How Garfield County Compares
How Garfield County Compares
Garfield County scores 7 points above the Oklahoma state average (79/100) and 18 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-07-19
ZIP Code Risk Map
Water Quality Map: Garfield County, Oklahoma
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.4 (asthma 11%, diabetes 12.6%)
Estimated additional annual cost per homeowner: $867, driven primarily by flood
Infrastructure: 0.472% avg pipe failure probability, 72% of ZIPs at high risk
74.5% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Garfield County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 42 violations. Past 5 years: 63 total (63 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $867
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
27,823 housing units in Garfield 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 Garfield County
Remediation costs are relatively manageable for most homeowners in Garfield 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 Garfield County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Garfield County
8 community water systems serving Garfield County.
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Show all 8 water systems
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20 total water systems serve Garfield County.
Systems with the most violations in Garfield County
5 water systems with recorded EPA violations.
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All ZIP Codes in Garfield County
18 ZIP codes tracked in Garfield County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 73720 | Bison | 99 | A | 0 | — |
| 2 | 73738 | Garber | 98 | A | 5 (1 health) | $136K |
| 3 | 73705 | Enid | 97 | A | 15 (2 health) | — |
| 4 | 73706 | Enid | 97 | A | 15 (2 health) | — |
| 5 | 73733 | Douglas | 94 | A | 4 | $103K |
| 6 | 73736 | Fairmont | 94 | A | 9 (1 health) | $273K |
| 7 | 73743 | Hillsdale | 94 | A | 16 (1 health) | — |
| 8 | 73702 | Enid | 93 | A | 15 (2 health) | — |
| 9 | 73730 | Covington | 90 | A | 3 | $204K |
| 10 | 73703 | Enid | 88 | A | 15 (2 health) | $191K |
| 11 | 73773 | Waukomis | 88 | A | 3 | $131K |
| 12 | 73754 | Lahoma | 87 | A | 1 | $154K |
| 13 | 73701 | Enid | 83 | B | 15 (2 health) | $100K |
| 14 | 73735 | Drummond | 79 | B | 1 | — |
| 15 | 73753 | Kremlin | 70 | B | 50 (9 health) | $142K |
| 16 | 73727 | Carrier | 66 | C | 0 | — |
| 17 | 73757 | Lucien | 66 | C | 0 | — |
| 18 | 74640 | Hunter | 66 | C | 0 | $90K |
Recommended Buyer Guides for Garfield 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 — 74.5% of homes built before 1978
- 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 Garfield County, Oklahoma
Overview
Garfield County in Oklahoma covers 18 ZIP codes with an average Home Safety Score of A (86/100).
14 of 18 ZIP codes have recorded EPA violations. 22 health-based violations have been documented.
← Back to Oklahoma 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.