Jefferson County, Tennessee
4 ZIP codes · Avg score 42/100 · Grade D · Updated
ZipCheckup grade for Jefferson County: D.
Several federal signals point to home-safety risks in this ZIP.
Your top priority: see the breakdown below and consider a certified water filter. NSF certified filters →
Water monitoring data from Jefferson County's 4 ZIP codes tells a below-average story - health violations are present and system-level detail is worth checking.
How Jefferson County Compares
How Jefferson County Compares
Jefferson County scores 30 points below the Tennessee state average (72/100) and 31 points below the national average (73/100).
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:
Key Risk Factors
Health risk index: 15.1 (asthma 11%, diabetes 13.6%)
Estimated additional annual cost per homeowner: $1,095, driven primarily by flood
47.5% of homes built before 1978 (lead paint era)
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,095
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
20,861 housing units in Jefferson County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Jefferson County
Remediation costs are relatively manageable for most homeowners in Jefferson County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Jefferson County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Jefferson County
8 community water systems serving Jefferson County.
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Show all 8 water systems
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10 total water systems serve Jefferson County.
Systems with the most violations in Jefferson County
5 water systems with recorded EPA violations.
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All ZIP Codes in Jefferson County
4 ZIP codes tracked in Jefferson County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 37725 | Dandridge | 45 | D | 7 | $235K |
| 2 | 37820 | New Market | 44 | D | 8 | $194K |
| 3 | 37760 | Jefferson City | 40 | D | 19 | $234K |
| 4 | 37890 | White Pine | 40 | D | 17 | $204K |
Recommended Buyer Guides for Jefferson County
Federal and certification sources drive the ordering: EPA monitoring data, NSF certifications, FEMA flood maps, and CDC lead guidance - guides surface only when county data warrants them.
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Jefferson County, Tennessee
Overview
Jefferson County in Tennessee covers 4 tracked ZIP records with an average Home Safety Score of D (42/100) across 4 scored records.
4 of 4 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.
← Back to Tennessee Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.
What You Can Do
Jefferson County has a grade of D. Here are steps to protect your household.
Test your tap water
Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.
Consider a certified water filter
NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher
Contact your water utility
Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.
Check for lead in your home
47.5% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.