Caldwell County, North Carolina
6 ZIP codes · Avg score 77/100 · Grade B · Updated
ZipCheckup grade for Caldwell County: B.
This ZIP looks solid, with a few items worth a quick check.
Tracking 6 ZIP codes in Caldwell County shows a water safety record well above the national median - violations are isolated exceptions, not recurring patterns.
How Caldwell County Compares
How Caldwell County Compares
Caldwell County scores 1 points below the North Carolina state average (78/100) and 4 points above 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:
ZIP Code Risk Map
Water Quality Map: Caldwell County, North Carolina
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 14.5 (asthma 11%, diabetes 13.2%)
Estimated additional annual cost per homeowner: $892, driven primarily by flood
54.8% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Caldwell County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 5 violations. Past 5 years: 8 total (8 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $892
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
36,058 housing units in Caldwell 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 Caldwell County
Remediation costs are relatively manageable for most homeowners in Caldwell 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 Caldwell County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Caldwell County
8 community water systems serving Caldwell County.
- B
- B
- B
- B
- B
- B
Show all 8 water systems
- B
- B
Systems with the most violations in Caldwell County
5 water systems with recorded EPA violations.
- B
- B
- B
- B
- B
All ZIP Codes in Caldwell County
6 ZIP codes tracked in Caldwell County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 28611 | Collettsville | 83 | B | 2 | — |
| 2 | 28638 | Hudson | 81 | B | 6 (2 health) | $175K |
| 3 | 28645 | Lenoir | 74 | B | 17 (2 health) | $158K |
| 4 | 28630 | Granite Falls | 71 | B | 17 (3 health) | $198K |
| 5 | 28633 | Lenoir | — | — | — | |
| 6 | 28661 | Patterson | — | — | — |
Recommended Buyer Guides for Caldwell 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 Lead Paint Test Kits — 54.8% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- 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 Caldwell County, North Carolina
Overview
Caldwell County in North Carolina covers 6 tracked ZIP records with an average Home Safety Score of B (77/100) across 4 scored records.
4 of 4 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 3 health-based violations appear in the available health breakdown.
← Back to North Carolina 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.