Duval County, Florida
54 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-06-03
Unlike many counties its size, Duval County keeps violation rates low — all 54 ZIP codes score at or above the state average for tap water safety, with no systemic concerns flagged in the current data set.
How Duval County Compares
How Duval County Compares
Duval County scores 8 points above the Florida state average (73/100) and 13 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Duval County, Florida
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.8 (asthma 10.3%, diabetes 12.8%)
Estimated additional annual cost per homeowner: $5,008, driven primarily by sea_level
Infrastructure: 0.25% avg pipe failure probability, 2% of ZIPs at high risk
53.8% 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
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $5,008
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
436,959 housing units in Duval 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 Duval County
Remediation costs are relatively manageable for most homeowners in Duval 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 Duval County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Duval County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | N.s. Mayport | 20,500 | 453 |
| 2 | Jea Major Grid | 826,664 | 450 |
| 3 | Jea: Lofton Oaks Grid | 24,318 | 450 |
| 4 | Jacksonville Beach Wtp | 23,352 | 450 |
| 5 | N.a.s. Jacksonville | 22,000 | 450 |
10 total water systems serve Duval County.
All ZIP Codes in Duval County
54 ZIP codes tracked in Duval County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 32240 | Jacksonville Beach | 95 | A | 0 | — |
| 2 | 32099 | Jacksonville | 89 | A | 9 | — |
| 3 | 32212 | Jacksonville | 89 | A | 9 | — |
| 4 | 32214 | Jacksonville | 89 | A | 9 | — |
| 5 | 32215 | Jacksonville | 89 | A | 9 | — |
| 6 | 32227 | Jacksonville | 89 | A | 9 | — |
| 7 | 32228 | Jacksonville | 89 | A | 9 | — |
| 8 | 32229 | Jacksonville | 89 | A | 9 | — |
| 9 | 32230 | Jacksonville | 89 | A | 9 | — |
| 10 | 32232 | Jacksonville | 89 | A | 9 | — |
| 11 | 32235 | Jacksonville | 89 | A | 9 | — |
| 12 | 32239 | Jacksonville | 89 | A | 9 | — |
| 13 | 32245 | Jacksonville | 89 | A | 9 | — |
| 14 | 32255 | Jacksonville | 89 | A | 9 | — |
| 15 | 32267 | Jacksonville | 89 | A | 9 | — |
| 16 | 32201 | Jacksonville | 85 | A | 9 | — |
| 17 | 32203 | Jacksonville | 85 | A | 9 | — |
| 18 | 32231 | Jacksonville | 85 | A | 9 | — |
| 19 | 32236 | Jacksonville | 85 | A | 9 | — |
| 20 | 32238 | Jacksonville | 85 | A | 9 | — |
| 21 | 32241 | Jacksonville | 85 | A | 9 | — |
| 22 | 32247 | Jacksonville | 85 | A | 9 | — |
| 23 | 32260 | Jacksonville | 85 | A | 9 | — |
| 24 | 32266 | Neptune Beach | 83 | B | 2 | $614K |
| 25 | 32202 | Jacksonville | 80 | B | 9 | $229K |
| 26 | 32206 | Jacksonville | 80 | B | 9 | $154K |
| 27 | 32219 | Jacksonville | 80 | B | 9 | $205K |
| 28 | 32220 | Jacksonville | 80 | B | 9 | $229K |
| 29 | 32221 | Jacksonville | 80 | B | 9 | $245K |
| 30 | 32222 | Jacksonville | 80 | B | 9 | $294K |
| 31 | 32234 | Jacksonville | 80 | B | 9 | $227K |
| 32 | 32250 | Jacksonville Beach | 80 | B | 0 | $526K |
| 33 | 32233 | Atlantic Beach | 76 | B | 3 | $396K |
| 34 | 32204 | Jacksonville | 75 | B | 9 | $343K |
| 35 | 32209 | Jacksonville | 75 | B | 9 | $92K |
| 36 | 32211 | Jacksonville | 75 | B | 9 | $209K |
| 37 | 32216 | Jacksonville | 75 | B | 9 | $245K |
| 38 | 32224 | Jacksonville | 75 | B | 9 | $426K |
| 39 | 32225 | Jacksonville | 75 | B | 9 | $324K |
| 40 | 32244 | Jacksonville | 75 | B | 9 | $221K |
| 41 | 32246 | Jacksonville | 75 | B | 9 | $282K |
| 42 | 32254 | Jacksonville | 75 | B | 9 | $85K |
| 43 | 32256 | Jacksonville | 75 | B | 9 | $360K |
| 44 | 32257 | Jacksonville | 75 | B | 9 | $305K |
| 45 | 32258 | Jacksonville | 75 | B | 9 | $348K |
| 46 | 32277 | Jacksonville | 75 | B | 9 | $257K |
| 47 | 32205 | Jacksonville | 70 | B | 9 | $258K |
| 48 | 32207 | Jacksonville | 70 | B | 9 | $255K |
| 49 | 32208 | Jacksonville | 70 | B | 9 | $140K |
| 50 | 32210 | Jacksonville | 70 | B | 9 | $205K |
| 51 | 32217 | Jacksonville | 70 | B | 9 | $291K |
| 52 | 32218 | Jacksonville | 70 | B | 9 | $260K |
| 53 | 32223 | Jacksonville | 70 | B | 9 | $378K |
| 54 | 32226 | Jacksonville | 70 | B | 9 | $341K |
Recommended Buyer Guides for Duval 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 Lead Paint Test Kits — 53.8% of homes built before 1978
Deep Dive Reports
Detailed analysis for Duval County, Florida
Overview
Duval County in Florida covers 54 ZIP codes with an average Home Safety Score of B (81/100).
52 of 54 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Florida water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.