COUNTY REPORT VA

Fairfax County, Virginia

75 ZIP codes · Avg score 50/100 · Grade D · Updated

ZipCheckup grade for Fairfax County: D.

Several federal signals point to home-safety risks in this ZIP.

While Fairfax County's situation varies by ZIP, its 75 ZIP codes collectively fall below the state average - addressing specific concerns starts with checking the system that serves a given address.

How Fairfax County Compares

Fairfax County50/100
Virginia avg75/100
National avg73/100

How Fairfax County Compares

D
County Grade
50/100
Avg Safety Score
75
ZIP Codes
7
Water Systems

Fairfax County scores 25 points below the Virginia state average (75/100) and 23 points below 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:

D
County Grade
50
Avg Safety Score
75
ZIP Codes
Best ZIP: 20120 (50/100)
Lowest ZIP: 22315 (50/100)
$667K
Median Home Value
$1,974
Avg Remediation (30% of home value)

ZIP Code Risk Map

Water Quality Map: Fairfax County, Virginia

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: 9.8 (asthma 9.1%, diabetes 10.7%)

Estimated additional annual cost per homeowner: $2,480, driven primarily by sea_level

County Health Indicators vs National Average

Asthma 9.1% (national: 8.9%)
Diabetes 10.7% (national: 10.5%)
Obesity 24% (national: 32.4%)

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

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $2,480

Sea Level Rise $1,500/yr
Flood $1,171/yr
Energy Code Gap $393/yr

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

Water Safety Affordability

How much it costs to fix water issues relative to home values in Fairfax County

$667K
Median Home Value
$1,974
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Fairfax 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 Fairfax County residents

Asthma 9.1% (US avg: 8.9%)
Diabetes 10.7% (US avg: 11%)
Obesity 24% (US avg: 32.4%)

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

Water systems serving Fairfax County

7 community water systems serving Fairfax County.

Show all 7 water systems

Systems with the most violations in Fairfax County

2 water systems with recorded EPA violations.

All ZIP Codes in Fairfax County

75 ZIP codes tracked in Fairfax County.

# ZIP Code City Safety Score Grade Violations Home Value
1 20120 Centreville 50 D 1 $620K
2 20121 Centreville 50 D 0 $488K
3 20124 Clifton 50 D 0 $870K
4 20151 Chantilly 50 D 0 $647K
5 20170 Herndon 50 D 0 $626K
6 20171 Herndon 50 D 0 $770K
7 20190 Reston 50 D 0 $569K
8 20191 Reston 50 D 0 $617K
9 20194 Reston 50 D 0 $792K
10 22003 Annandale 50 D 0 $694K
11 22015 Burke 50 D 0 $667K
12 22027 Dunn Loring 50 D 1 $1042K
13 22032 Fairfax 50 D 0 $737K
14 22033 Fairfax 50 D 0 $622K
15 22039 Fairfax Station 50 D 0 $974K
16 22041 Falls Church 50 D 0 $433K
17 22042 Falls Church 50 D 0 $667K
18 22043 Falls Church 50 D 0 $869K
19 22044 Falls Church 50 D 0 $711K
20 22060 Fort Belvoir 50 D 0 $648K
21 22066 Great Falls 50 D 1 $1240K
22 22079 Lorton 50 D 0 $601K
23 22101 Mc Lean 50 D 0 $1283K
24 22102 Mc Lean 50 D 0 $1004K
25 22124 Oakton 50 D 1 $980K
26 22150 Springfield 50 D 0 $618K
27 22151 Springfield 50 D 0 $636K
28 22152 Springfield 50 D 0 $620K
29 22153 Springfield 50 D 0 $652K
30 22180 Vienna 50 D 1 $917K
31 22181 Vienna 50 D 1 $928K
32 22182 Vienna 50 D 1 $1087K
33 22303 Alexandria 50 D 0 $547K
34 22306 Alexandria 50 D 0 $583K
35 22307 Alexandria 50 D 0 $753K
36 22308 Alexandria 50 D 0 $871K
37 22309 Alexandria 50 D 0 $540K
38 22310 Alexandria 50 D 0 $627K
39 22311 Alexandria 50 D 0 $692K
40 22312 Alexandria 50 D 0 $594K
41 22315 Alexandria 50 D 0 $609K
42 20122 Centreville
43 20153 Chantilly
44 20172 Herndon
45 20192 Herndon
46 20193 Herndon
47 20195 Reston
48 20196 Reston
49 22009 Burke
50 22034 Fairfax
51 22036 Fairfax
52 22037 Fairfax
53 22067 Greenway
54 22081 Merrifield
55 22082 Merrifield
56 22095 Herndon
57 22096 Reston
58 22103 West Mclean
59 22106 Mc Lean
60 22107 Mc Lean
61 22108 Mc Lean
62 22109 Mc Lean
63 22116 Merrifield
64 22118 Merrifield
65 22119 Merrifield
66 22121 Mount Vernon
67 22122 Newington
68 22156 Springfield
69 22158 Springfield
70 22159 Springfield
71 22160 Springfield
72 22161 Springfield
73 22183 Vienna
74 22185 Vienna
75 22199 Lorton

Recommended Buyer Guides for Fairfax County

Where county records show a lead exceedance or pre-1978 housing concentration, lead-specific filters and test kits move toward the top of the list.

Overview

Fairfax County in Virginia covers 75 tracked ZIP records with an average Home Safety Score of D (50/100) across 41 scored records.

7 of 41 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.

← Back to Virginia Home Safety Profile

Data Sources

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

What You Can Do

Fairfax County has a grade of D. Here are steps to protect your household.

1

Test your tap water

Order a certified lab test kit ($20-$50) to check for lead, bacteria, and other contaminants specific to your ZIP code.

2

Consider a certified water filter

NSF-certified filters can remove most common contaminants. Match the filter to your test results for best protection. Try our filter matcher

3

Contact your water utility

Request the latest Consumer Confidence Report (CCR) from your water provider. It details exactly what was found in your water supply.

Frequently Asked Questions

Is water safe in Fairfax County?
Fairfax County receives a grade of D. 0 of 75 ZIP codes have health-based violations. Independent water testing is recommended.
How many water systems serve Fairfax County?
Fairfax County is served by 7 public water systems that supply drinking water to residents across 75 ZIP codes.
What is the biggest environmental risk in Fairfax County?
The primary environmental risk factor in Fairfax County is sea_level. This contributes to an estimated additional annual cost of $2,480 per homeowner.
How does Fairfax County compare to Virginia?
Fairfax County has an average Home Safety Score of 50/100 under model 4.0.0, which is below the Virginia state average of 75/100.

How to cite this page

APA ZipCheckup. (2026). Fairfax County, VA: HSS 50/100; 2 Violations. https://zipcheckup.com/county/virginia/fairfax/
BibTeX
@misc{zipcheckup-county-virginia-fairfax,
  author = {{ZipCheckup}},
  title  = {{Fairfax County, VA: HSS 50/100; 2 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/virginia/fairfax/}
}

Page version: August 2026.

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