Maryland Heights, MO Home Safety: Home Safety 83/100
1 ZIP code · 1 water system · Updated
ZipCheckup grade for Maryland Heights: B.
This ZIP looks solid, with a few items worth a quick check.
Water utilities in Maryland Heights have maintained a consistent compliance record over recent monitoring periods - the city's above-average grade in MO reflects low violation rates and no systemic health concerns flagged in current data.
How Maryland Heights Compares
Data: EPA SDWIS
Maryland Heights Water: The Quick Version
- Average lead level: 0.001 mg/L.
- Homes built before 1986: 81% - older plumbing may contain lead solder.
- Estimated remediation: $2,700 per household.
- CDC health risk index: 12.49 - above typical levels.
Water Systems Serving Maryland Heights
Most residential addresses in Maryland Heights, MO are served by a single water utility - the dominant system among the 1 provider tracked in federal data.
- B
Overview
We track home safety data for 1 ZIP code in Maryland Heights, Missouri (population ~21,651), 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 1 of 1 ZIP codes.
The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.
Home Safety Score
Average Home Safety Score for Maryland Heights: 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
Maryland Heights 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 1 ZIP code with known status 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 |
|---|---|---|---|
| 63043 | B | Mo American St Louis St Charles Counties | 1,111,000 |
All ZIP Codes in Maryland Heights
- 63043 [B]
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.
CDC Health Data for Maryland Heights
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 Maryland Heights's Housing Stock?
With 81% 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
What does a median build year of 1978 mean for water safety in Maryland Heights? It means the majority of the city's residential plumbing was installed before 1986, when lead solder was federally banned, and a large share may predate 1970, when lead pipes were commonly used - making plumbing age a central variable in household-level lead risk across much of the city.
Over half of homes in Maryland Heights 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.
Maryland Heights: Remediation Cost in Perspective
Although the Maryland Heights remediation share is moderate, it remains reachable for most homeowners who plan for the expense in advance.
Remediation costs are moderate relative to home values in Maryland Heights. The estimated $1,500–$4,100 range is manageable for most homeowners but still worth budgeting for. Home values are 23% above the Missouri average.
Protecting Children from Lead in Maryland Heights
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.
Before the federal solder ban, lead solder was a routine plumbing material, and 81% of the Maryland Heights inventory was built in that earlier era - a share large enough to move household-level reads onto the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Historical Flood-Claim Evidence for Maryland Heights
Historical NFIP data for Maryland Heights contains 104 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $33,904. Among ZIP codes with claim records, 100% 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>$2,700</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 Maryland Heights, MO