Prince William County, Virginia
24 ZIP codes · Avg score 74/100 · Grade B
ZipCheckup grade for Prince William County: B.
This ZIP has a few items worth a quick check.
A high composite grade for Prince William County is a summary of data, not a water test, so check the report for your own ZIP code among the 24 listed.
How Prince William County Compares
How Prince William County Compares
Prince William County scores 1 points below the Virginia state average (75/100) and 1 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
ZIP Code Risk Map
Water Quality Map: Prince William County, Virginia
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.2 (asthma 9.8%, diabetes 11.4%)
Modeled additional annual cost estimate per homeowner: $1,329, largest modeled factor: Flood
26% of homes built before 1980 (lead paint was banned for residential use in 1978)
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 DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,329
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
179,591 housing units in Prince William 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 Prince William County
Modeled remediation costs in Prince William 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 Prince William County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Prince William County ZIP codes
8 community water systems mapped to Prince William County ZIP codes; EPA may list more systems serving the county.
- C
- B
- C
- B
- C
- B
Show all 8 water systems
- B
- B
10 water systems mapped to Prince William County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Prince William County
2 water systems with violations in EPA records.
- C
- B
All ZIP Codes in Prince William County
24 ZIP codes tracked in Prince William County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 20109 | Manassas | 83 | B | 0 | $412K |
| 2 | 20110 | Manassas | 83 | B | 0 | $445K |
| 3 | 20111 | Manassas | 83 | B | 0 | $449K |
| 4 | 20136 | Bristow | 83 | B | 0 | $586K |
| 5 | 20155 | Gainesville | 83 | B | 0 | $630K |
| 6 | 20169 | Haymarket | 83 | B | 0 | $677K |
| 7 | 20181 | Nokesville | 83 | B | 1 | $671K |
| 8 | 20112 | Manassas | 67 | C | 0 | $616K |
| 9 | 22025 | Dumfries | 67 | C | 0 | $498K |
| 10 | 22026 | Dumfries | 67 | C | 0 | $436K |
| 11 | 22125 | Occoquan | 67 | C | 0 | $485K |
| 12 | 22134 | Quantico | 67 | C | 4 (4 health) | $238K |
| 13 | 22172 | Triangle | 67 | C | 0 | $510K |
| 14 | 22191 | Woodbridge | 67 | C | 0 | $433K |
| 15 | 22192 | Woodbridge | 67 | C | 0 | $466K |
| 16 | 22193 | Woodbridge | 67 | C | 0 | $427K |
| 17 | 20137 | Broad Run | — | — | 0 | $700K |
| 18 | 20143 | Catharpin | — | — | 0 | $1023K |
| 19 | 20156 | Gainesville | — | — | — | |
| 20 | 20168 | Haymarket | — | — | — | |
| 21 | 20182 | Nokesville | — | — | — | |
| 22 | 22135 | Quantico | — | — | — | |
| 23 | 22194 | Woodbridge | — | — | — | |
| 24 | 22195 | Woodbridge | — | — | — |
Recommended Buyer Guides for Prince William County
Each guide below is listed with the reason it appears.
- 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 Prince William County, Virginia
Overview
Prince William County in Virginia covers 24 tracked ZIP records with an average Home Safety Score of B (74/100) across 16 scored records.
2 of 18 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 4 health-based violations appear in the available health breakdown.
← Back to Virginia 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.