Is Buffalo, Oklahoma tap water safe?
2 water systems report serving Buffalo. Your water depends on which one serves your address. Check your bill if unsure. This list is matched from the ZIP codes in this place, so it may include nearby systems.
A
Buffalo
Serves 1,200 people · Groundwater · Full report →
No health-based violations in the last 5 years; 2 monitoring/reporting violations; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).
B
Harper Co Rwd #1
Serves 198 people · Groundwater · Full report →
No health-based violations in the last 5 years; 139 monitoring/reporting violations; 1 not yet resolved; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2026).