City of Cooperstown
EPA ID: ND2000203 · 984 people served · 1 ZIP code
Five clean years on EPA record — City of Cooperstown, 984 residents served.
Data: EPA SDWIS Last verified: 2026-04-02
Service Area Map
Coverage area for City of Cooperstown Source: EPA SDWIS service area boundaries.
Service area boundary — Grade B
Service Area Demographics
The City of Cooperstown serves a community with a median household income of $77,500 and an estimated 1,446 residents across its service area. Approximately 88% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
💧 Where Does Your Water Come From?
City of Cooperstown's water is pumped from underground aquifers. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
About 0% of homes in Griggs County, North Dakota rely on private wells rather than public water systems. Private well owners are responsible for their own water testing and treatment.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in North Dakota
Estimated Remediation Costs
Average estimated costs across ZIP codes served by this system
Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.
System Overview
City of Cooperstown (EPA ID: ND2000203) is a community water system in North Dakota that serves approximately 984 people from groundwater sources.
This system serves ZIP code 58425 in Cooperstown.
Average Home Safety Score: B (70/100)
Based on water quality violations, lead levels, and radon risk across all ZIP codes served by this system.
Violation History
Lead & Copper
EPA Lead and Copper Rule sampling data for ZIP codes served by this system:
| ZIP Code | Lead Level | Exceeds Limit | Sample Date |
|---|---|---|---|
| 58425 | 0.00199 mg/L | No | N/A |
Radon Risk in Service Area
Dominant radon zone for ZIP codes served by this system: Zone 1 (High Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Let cold water run for 2 minutes before drinking — this helps flush lead from your pipes.
ZIP Codes Served
- 58425 — Cooperstown
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Cooperstown (ND2000203) on EPA.gov.
Frequently Asked Questions
Is City of Cooperstown water safe to drink?
Based on EPA records, City of Cooperstown has no recorded violations in the past 5 years — a positive indicator of water quality management.
How many people does City of Cooperstown serve?
City of Cooperstown serves approximately 984 people across 1 ZIP code in North Dakota.
Where does City of Cooperstown get its water?
The primary water source is groundwater.
Lead Service Line Inventory
Service line breakdown reported under the federal Lead and Copper Rule Improvements (LCRI) inventory requirement:
Federal LCRI rule (effective October 2024) requires every public water system to inventory its service lines and complete lead-line replacement within 10 years.
Source: EPA SDWIS Federal Service Line Inventory (Phase 2) · Submitted 2026
ZipCheckup is not affiliated with the utility or state agency. Inventory figures render verbatim from the public LCRI submission cited above; ZipCheckup does not perform inspections or replacements.