COUNTY REPORT FL

St. Johns County, Florida

11 ZIP codes · Home Safety Score unavailable · 0 of 11 tracked ZIP records scored

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

Unavailable
0 of 11 tracked ZIP records scored
11
ZIP Codes
$481K
Median Home Value
$443
Avg Remediation (0.09% of home value)

ZIP Code Risk Map

Water Quality Map: St. Johns 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: 11.9 (asthma 9.3%, diabetes 10.6%)

Modeled additional annual cost estimate per homeowner: $5,065, largest modeled factor: Sea Level

15% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 9.3% (national: 8.9%)
Diabetes 10.6% (national: 10.5%)
Obesity 29.2% (national: 32.4%)

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

Infrastructure Overview

2003
Median Build Year
15%
Pre-1980 Housing
20/100
Infrastructure Stress Indicator
0%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $5,065

Sea Level Rise $3,000/yr
Flood $1,891/yr
Energy Code Gap $130/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

119,931 housing units in St. Johns County

Pre-1940 2%
1940–1959 3%
1960–1979 10%
1980–1999 31%
2000+ 53%

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 St. Johns County

$481K
Median Home Value
$443
Est. Remediation Cost
0.1%
of Home Value
Remediation as % of home value low burden

Modeled remediation costs in St. Johns County can be compared with the median property value; actual costs vary by property.

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 St. Johns County residents

Asthma 9.3% (US avg: 8.9%)
Diabetes 10.6% (US avg: 11%)
Obesity 29.2% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems mapped to St. Johns County ZIP codes

8 community water systems mapped to St. Johns County ZIP codes; EPA may list more systems serving the county.

Show all 8 water systems

17 water systems mapped to St. Johns County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in St. Johns County

5 water systems with violations in EPA records.

All ZIP Codes in St. Johns County

11 ZIP codes tracked in St. Johns County.

# ZIP Code City Safety Score Grade Violations Home Value
1 32004 Ponte Vedra Beach — — —
2 32033 Elkton — — 6 $279K
3 32080 Saint Augustine — — 16 $498K
4 32081 Ponte Vedra — — 30 $590K
5 32082 Ponte Vedra Beach — — 35 $733K
6 32084 Saint Augustine — — 41 (1 health) $295K
7 32085 Saint Augustine — — —
8 32086 Saint Augustine — — 21 (1 health) $342K
9 32092 Saint Augustine — — 15 $465K
10 32095 Saint Augustine — — 22 $486K
11 32259 Saint Johns — — 27 $481K

Recommended Buyer Guides for St. Johns County

The mix of guides changes from county to county.

Overview

St. Johns County in Florida covers 11 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.

9 of 9 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 health-based violations appear in the available health breakdown.

← Back to Florida Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

How many water systems serve St. Johns County?
We map 17 public water systems to 11 ZIP codes in our data for St. Johns County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in St. Johns County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in St. Johns County is sea level. Across all modeled risk factors, the estimated average additional annual cost is $5,065 per homeowner; actual costs vary by home.
How old are homes in St. Johns County?
The median home build year in St. Johns County is 2003. 15% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). St. Johns County, Florida Home Safety Profile. https://zipcheckup.com/county/florida/st-johns/
BibTeX
@misc{zipcheckup-county-florida-st-johns,
  author = {{ZipCheckup}},
  title  = {{St. Johns County, Florida Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/florida/st-johns/}
}

Page version: October 2026.

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