COUNTY REPORT FL

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

Duval County81/100
Florida avg73/100
National avg68/100

How Duval County Compares

B
County Grade
81/100
Avg Safety Score
54
ZIP Codes
10
Water Systems

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

B
County Grade
81
Avg Safety Score
54
ZIP Codes
Best ZIP: 32240 (95/100)
Lowest ZIP: 32226 (70/100)
$258K
Median Home Value
$1,968
Avg Remediation (76% of home value)

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.

A B C D F

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

Asthma 10.3% (national: 8.9%)
Diabetes 12.8% (national: 10.5%)
Obesity 34.3% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1984
Median Build Year
53.8%
Pre-1978 Housing
25%
Pipe Failure Probability
2%
ZIPs at High Infra Risk
High
Lead Pipe Risk

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

Sea Level Rise $3,000/yr
Flood $1,367/yr
Wildfire $300/yr

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

Pre-1940 5%
1940–1959 15%
1960–1979 22%
1980–1999 30%
2000+ 28%

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

$258K
Median Home Value
$1,968
Est. Remediation Cost
0.8%
of Home Value
Remediation as % of home value low burden

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

Asthma 10.3% (US avg: 8.9%)
Diabetes 12.8% (US avg: 11%)
Obesity 34.3% (US avg: 32.4%)

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.

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

Updated daily.

Frequently Asked Questions

Is water safe in Duval County?
Duval County receives a grade of B, indicating generally safe tap water across its 54 ZIP codes.
How many water systems serve Duval County?
Duval County is served by 10 public water systems that supply drinking water to residents across 54 ZIP codes.
What is the biggest environmental risk in Duval County?
The primary environmental risk factor in Duval County is sea_level. This contributes to an estimated additional annual cost of $5,008 per homeowner.
How old are homes in Duval County?
The median home build year in Duval County is 1984. 53.8% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Duval County compare to Florida?
Duval County has an average water safety score of 81/100, which is above the Florida state average of 73/100.

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