CITY REPORT MO

Knob Noster, MO - Home Safety Score unavailable

1 ZIP code · 5 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
1
ZIPs with Violations
Zone 2
Radon Risk (Moderate)
$195K
Median Home Value
$1,600
Est. Remediation (0.8% of home value)

Key Facts for Knob Noster Residents

  • Your city's water systems recorded 12 violations in the past 5 years.
  • Average lead level: 0.0022 mg/L.
  • Homes built before 1986: 44% - older plumbing may contain lead solder.
  • Estimated remediation: $1,600 per household.
  • CDC health risk index: 12.13 - above typical levels.

Knob Noster's Water Providers

Knob Noster, MO is covered by 3 major water utilities out of 5 federally tracked systems, each managing its own pipes, treatment processes, and EPA filings. What a household gets from the tap depends on which provider's system serves that address.

Overview

We track home safety data for 1 ZIP code in Knob Noster, Missouri (population ~6,527), covering 5 community water systems serving approximately 22,399 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Water Sources

Knob Noster water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average lead level (90th percentile): 0.0022 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.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Consumer Confidence Report Rule Reporting 6 1
Total Trihalomethanes (TTHM) Disinfection Byproducts 4 1
Haloacetic Acids (HAA5) Disinfection Byproducts 4 1
Stage 2 DBP Rule Treatment Technique 4 1
Surface Water Treatment Rule Treatment Technique 4 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
65336 12 0 Knob Noster Public Water System

All ZIP Codes in Knob Noster

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Knob Noster Community Health Snapshot

10.5%
Asthma (US: 9.8%)
9.6%
Diabetes (US: 10.4%)
19.5%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.5% ↑
Diabetes 9.6% ↓
Mental Health 19.5% ↑

Vertical line = national average. Above national · Below national

What's in Knob Noster's Water?

Consumer Confidence Report Rule 6 violations
Reporting
Total Trihalomethanes (TTHM) 4 violations
Disinfection Byproducts · EPA limit: 0.08 mg/L
Increased cancer risk with long-term exposure
Haloacetic Acids (HAA5) 4 violations
Disinfection Byproducts · EPA limit: 0.06 mg/L
Increased cancer risk with long-term exposure

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Knob Noster Infrastructure Age

1998
Median Build Year
44%
Built Before 1986
17%
Built Before 1970
Copper
Likely Pipe Material

With 44% 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

Housing age is a practical proxy for plumbing risk because federal standards changed in 1986, when lead solder was banned from new residential construction, and again earlier - before 1970, lead pipes were themselves commonly installed. Knob Noster's median build year of 1998 sits in the range where both pre- and post-1986 homes are well represented. The bar chart above reflects that mixed picture: the distribution captures pockets of older housing alongside more recent development, and those pockets carry real lead risk potential at the individual property level.

1998
Median Year Built
44%
Pre-1986 (Lead Paint Risk)
17%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (17%) 1970–1986 (27%) Post-1986 (56%)

Most homes in Knob Noster were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Knob Noster

In Knob Noster, the equity impact of remediation is proportionally small - not the kind of financial commitment that rises to the level of a genuine planning constraint, but a minor share of what most properties here are worth.

Median Home Value
$195,400
Est. Remediation
$1,600
Remediation as % of home value 0.8%

Remediation costs in Knob Noster are relatively low compared to home values. The $800–$2,600 estimated range is a small fraction of median property value. Home values are 11% above the Missouri average.

Knob Noster: Lead Risk & Vulnerable Populations

44%
Homes Built Before 1986
0.0022
mg/L Avg Lead (Limit: 0.015)

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.

When older housing represents 44% of the local inventory or aggregate readings approach the federal action level, an in-home check becomes the standard way to translate citywide averages into the specific reality of an individual Knob Noster address.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Knob Noster: NFIP Claim Records and Water-Quality Context

16
Total FEMA Flood Claims
$15,790
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Knob Noster contains 16 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $15,790. Among ZIP codes with claim records, 0% 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>$1,600</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.

Frequently Asked Questions

How many water violations does Knob Noster have?
Knob Noster water systems have a total of 12 EPA violations. Violations are tracked across 1 ZIP code.
Does Knob Noster water have lead?
The average 90th-percentile lead level in Knob Noster is 0.0022 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Knob Noster?
Knob Noster is served by 5 public water systems across 1 ZIP code, serving approximately 6,527 people.
How much does it cost to fix water issues in Knob Noster?
Estimated remediation costs in Knob Noster average $1,600 per household, ranging from $800 to $2,600. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesMissouri → Knob Noster, MO

How to cite this page

APA ZipCheckup. (2026). Knob Noster, MO - Home Safety Score unavailable. https://zipcheckup.com/cities/mo/knob-noster/
BibTeX
@misc{zipcheckup-cities-mo-knob-noster,
  author = {{ZipCheckup}},
  title  = {{Knob Noster, MO - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/mo/knob-noster/}
}

Page version: August 2026.

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