Saint Croix Falls, WI Water Safety: 63/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Safe water is the norm across most of Saint Croix Falls, WI — but documented violations push the city to the middle safety tier.
How Saint Croix Falls Compares
Data: EPA SDWIS Last verified: 2026-06-03
Saint Croix Falls Water: The Quick Version
- Homes built before 1986: 55% — older plumbing may contain lead solder.
- Estimated remediation: $1,600 per household.
- CDC health risk index: 13.5 — above typical levels.
Water Systems Serving Saint Croix Falls
Residential water in Saint Croix Falls, WI is supplied by 2 separate utilities — not one centralized authority. Each of those providers operates under its own service territory boundary, maintains its own distribution infrastructure, and files compliance documentation with the EPA on its own timeline. Federal data counts 2 water systems in the area, with these providers collectively accounting for the dominant share of household connections.
Overview
We track water quality and home safety data for 1 ZIP code in Saint Croix Falls, Wisconsin, covering 2 community water systems serving approximately 5,020 people.
No EPA violations recorded across any ZIP codes in Saint Croix Falls — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Saint Croix Falls: C (63/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Saint Croix Falls water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Saint Croix Falls
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 54024 | C | CENTURIA WATERWORKS | 900 |
All ZIP Codes in Saint Croix Falls
- 54024 [C]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Saint Croix Falls
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Old Is Saint Croix Falls's Housing Stock?
With 55% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.
Source: U.S. Census Bureau American Community Survey (ACS).
Housing Age Profile
While newer cities carry lower aggregate plumbing risk from lead-era construction, Saint Croix Falls sits firmly in the older category. The median build year of 1987 indicates that more than half the housing stock was built before 1986, when lead solder was still legally used in residential copper plumbing — and a substantial portion likely predates 1970, when lead pipes were still commonly installed for service lines. These two thresholds together define the elevated plumbing risk environment that older housing cities carry, independent of what the municipal water supply delivers to the meter.
Over half of homes in Saint Croix Falls were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.
Source: U.S. Census Bureau ACS B25034.
Saint Croix Falls: Remediation Cost in Perspective
When estimated remediation is placed alongside median property values in Saint Croix Falls, the resulting ratio is low — a finding consistent with a household financial perspective where documented issues can be addressed without a meaningful impact on overall equity position, making this market one of the more favorable contexts for remediation planning.
Remediation costs in Saint Croix Falls are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 8% above the Wisconsin average.
Protecting Children from Lead in Saint Croix Falls
Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.
Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 55% of Saint Croix Falls stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Saint Croix Falls
NFIP data for Saint Croix Falls shows a modest claim record and limited flood zone footprint — a combination that places flood exposure well below the threshold where water quality becomes an active planning concern. The connection between flooding and water safety is real during major events anywhere, but it stays in the background here rather than rising to an active local risk factor.
Saint Croix Falls has a relatively low flood history with 1 FEMA claims on record. While risk is limited, severe weather events can still impact water infrastructure.
How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. Flood damage can add significantly to the estimated <strong>$1,600</strong> remediation cost per household.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Saint Croix Falls
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 55% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Saint Croix Falls, WI