Is Knierim, Iowa tap water safe?
1 water system report serving Knierim. Your water depends on which one serves your address. Check your bill if unsure.
D
Knierim Water Supply
Serves 53 people · Groundwater · Full report →
5 health-based violations in the last 5 years; No UCMR 5 PFAS results on file; Lead 90th percentile below the action level (2025).