Florissant, MO Home Safety: Home Safety 83/100
4 ZIP codes · 1 water system · Updated
ZipCheckup grade for Florissant: B.
This ZIP looks solid, with a few items worth a quick check.
Throughout Florissant and across its water systems, EPA compliance data for MO shows above-average performance - violations are minimal, none of the tracked systems have recorded repeated MCL exceedances in recent cycles, and the safety picture has held steady across multiple reporting periods.
How Florissant Compares
Data: EPA SDWIS
Key Facts for Florissant Residents
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 75% - older plumbing may contain lead solder.
- Estimated remediation: $2,100 per household.
- CDC health risk index: 12.49 - above typical levels.
Florissant's Water Providers
As of current federal records, Florissant, MO is served primarily by one water utility among 1 tracked system. That single provider handles infrastructure investment, rate adjustments, and regulatory reporting under EPA oversight.
- B
Overview
We track home safety data for 4 ZIP codes in Florissant, Missouri (population ~112,073), covering 1 community water system serving approximately 1,111,000 people region-wide. The EPA snapshots used for this build directly map water systems to 3 of 4 ZIP codes.
The available EPA record reports 0 violations for 3 ZIP codes with a reported violation count.
Home Safety Score
Average Home Safety Score for Florissant: B (83/100)
Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| PFAS MCL Screen | UCMR 5 testing against the covered federal MCLs |
| Radon Risk | EPA radon zone classification |
| Annual AQI | EPA AirData county-year median with at least 90 observed days |
Water Sources
Florissant water systems draw from: Surface water.
Lead & Copper
- Average lead level (90th percentile): 0.0010 mg/L (EPA action level: 0.015 mg/L)
- 0 of 3 ZIP codes with known status exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate Risk)
- Zone 1 (High): 0 ZIP codes
- Zone 2 (Moderate): 4 ZIP codes
- Zone 3 (Low): 0 ZIP codes
The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 63031 | B | Mo American St Louis St Charles Counties | 1,111,000 |
| 63033 | B | Mo American St Louis St Charles Counties | 1,111,000 |
| 63034 | B | Mo American St Louis St Charles Counties | 1,111,000 |
All ZIP Codes in Florissant
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
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
Florissant Community Health Snapshot
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
Florissant Infrastructure Age
With 75% 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
When more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Florissant's median build year of 1970 places it squarely in that category.
Over half of homes in Florissant 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.
How Remediation Costs Compare in Florissant
Property value and cost data for Florissant produce a moderate remediation-share classification - a level where advance financial planning has real practical value and the commitment is realistic for most homeowners who approach it deliberately.
Remediation costs are moderate relative to home values in Florissant. The estimated $1,100–$3,400 range is manageable for most homeowners but still worth budgeting for. Home values are 10% below the Missouri average.
Florissant: Lead Risk & Vulnerable Populations
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.
Older stock in Florissant represents 75% of the inventory, and citywide monitoring runs at or above the federal action level - making an in-home read a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Florissant: NFIP Claim Records and Water-Quality Context
Historical NFIP data for Florissant contains 551 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $15,069. Among ZIP codes with claim records, 75% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.
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. The <strong>$2,100</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.
Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.
Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.
Deep Dive Reports
Detailed analysis for Florissant, MO