Denton County, Texas
30 ZIP codes · Avg score 90/100 · Grade A · Updated
ZipCheckup grade for Denton County: A.
No federal data flags a major home-safety concern for this ZIP.
Within Denton County, all 30 tracked ZIP codes show above-average drinking water safety - violations are infrequent and typically minor.
How Denton County Compares
How Denton County Compares
Denton County scores 7 points above the Texas state average (83/100) and 17 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: Denton County, Texas
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 10.6 (asthma 9.3%, diabetes 9.9%)
Estimated additional annual cost per homeowner: $1,113, driven primarily by flood
27.1% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Denton County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 18 violations. Past 5 years: 20 total (20 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: $1,113
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
324,827 housing units in Denton 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 Denton County
Remediation costs are relatively manageable for most homeowners in Denton 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 Denton County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems serving Denton County
8 community water systems serving Denton County.
- B
- B
- A
- A
- A
- A
Show all 8 water systems
- B
- A
48 total water systems serve Denton County.
Systems with the most violations in Denton County
5 water systems with recorded EPA violations.
- C
- A
- A
- A
- B
All ZIP Codes in Denton County
30 ZIP codes tracked in Denton County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 75007 | Carrollton | 100 | A | 1 | $360K |
| 2 | 75010 | Carrollton | 100 | A | 1 | $435K |
| 3 | 75057 | Lewisville | 100 | A | 1 | $209K |
| 4 | 76201 | Denton | 100 | A | 0 | $250K |
| 5 | 76205 | Denton | 100 | A | 0 | $308K |
| 6 | 76209 | Denton | 99 | A | 2 | $249K |
| 7 | 75067 | Lewisville | 97 | A | 6 | $321K |
| 8 | 75056 | The Colony | 96 | A | 11 | $415K |
| 9 | 76249 | Krum | 96 | A | 11 | $304K |
| 10 | 76208 | Denton | 95 | A | 38 (2 health) | $358K |
| 11 | 76266 | Sanger | 94 | A | 14 | $316K |
| 12 | 76258 | Pilot Point | 93 | A | 43 (1 health) | $320K |
| 13 | 76210 | Denton | 90 | A | 15 (1 health) | $348K |
| 14 | 75077 | Lewisville | 89 | A | 18 | $419K |
| 15 | 76207 | Denton | 87 | A | 30 (1 health) | $361K |
| 16 | 76227 | Aubrey | 87 | A | 50 | $376K |
| 17 | 75068 | Little Elm | 83 | B | 50 (3 health) | $386K |
| 18 | 75287 | Dallas | 83 | B | 0 | $389K |
| 19 | 76226 | Argyle | 83 | B | 30 | $555K |
| 20 | 75028 | Flower Mound | 79 | B | 11 | $458K |
| 21 | 75022 | Flower Mound | 73 | B | 18 | $618K |
| 22 | 76262 | Roanoke | 73 | B | 21 (1 health) | $527K |
| 23 | 76247 | Justin | 67 | C | 131 (1 health) | $373K |
| 24 | 75027 | Flower Mound | — | — | — | |
| 25 | 75029 | Lewisville | — | — | — | |
| 26 | 76202 | Denton | — | — | — | |
| 27 | 76203 | Denton | — | — | 0 | — |
| 28 | 76204 | Denton | — | — | — | |
| 29 | 76206 | Denton | — | — | — | |
| 30 | 76259 | Ponder | — | — | 49 (1 health) | $357K |
Recommended Buyer Guides for Denton County
Strictly editorial - no paid placements influence which guides appear; the selection draws on NSF certifications and EPA detection records for water systems serving this county.
- Best Water Filters for PFAS — PFAS detected in 1 ZIP code
- 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 Denton County, Texas
Overview
Denton County in Texas covers 30 tracked ZIP records with an average Home Safety Score of A (90/100) across 23 scored records.
21 of 25 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 9 health-based violations appear in the available health breakdown.
← Back to Texas 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.