Berkeley County, South Carolina
14 ZIP codes · Avg score 75/100 · Grade B · Updated 2026-06-03
Unlike many counties its size, Berkeley County keeps violation rates low — all 14 ZIP codes score at or above the state average for tap water safety, with no systemic concerns flagged in the current data set.
How Berkeley County Compares
How Berkeley County Compares
Berkeley County scores 3 points below the South Carolina state average (78/100) and 7 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Berkeley County, South Carolina
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.5 (asthma 9.5%, diabetes 12.7%)
Estimated additional annual cost per homeowner: $2,591, driven primarily by sea_level
Infrastructure: 0.253% avg pipe failure probability
35.4% of homes built before 1978 (lead paint era)
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Berkeley County water systems. Health-based shown in red, total in blue.
Peak year: 2024 with 3 violations. Past 5 years: 5 total (5 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
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: $2,591
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
89,075 housing units in Berkeley 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 Berkeley County
Remediation costs are relatively manageable for most homeowners in Berkeley 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 Berkeley 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 Berkeley County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | BCWSA SANGAREE W/D (0820002) | 95,345 | 9 |
| 2 | GOOSE CREEK CITY OF (SC0810004) | 40,628 | 8 |
| 3 | Moncks Corner City of (sc0810001) | 8,956 | 8 |
| 4 | Charleston Water System (sc1010001) | 327,422 | 5 |
| 5 | Summerville Cpw (sc1810003) | 81,750 | 5 |
16 total water systems serve Berkeley County.
All ZIP Codes in Berkeley County
14 ZIP codes tracked in Berkeley County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 29453 | Jamestown | 93 | A | 1 | $199K |
| 2 | 29492 | Charleston | 90 | A | 0 | $728K |
| 3 | 29486 | Summerville | 86 | A | 5 (4 health) | $329K |
| 4 | 29445 | Goose Creek | 85 | A | 0 | $256K |
| 5 | 29461 | Moncks Corner | 84 | B | 3 (1 health) | $273K |
| 6 | 29431 | Bonneau | 73 | B | 0 | $214K |
| 7 | 29437 | Dorchester | 73 | B | 0 | $182K |
| 8 | 29469 | Pinopolis | 73 | B | 0 | $352K |
| 9 | 29479 | Saint Stephen | 73 | B | 0 | $105K |
| 10 | 29147 | State Park | 66 | C | 0 | — |
| 11 | 29434 | Cordesville | 66 | C | 0 | — |
| 12 | 29468 | Pineville | 66 | C | 0 | $95K |
| 13 | 29016 | Blythewood | 65 | C | 0 | $331K |
| 14 | 29458 | Mc Clellanville | 60 | C | 0 | $347K |
Recommended Buyer Guides for Berkeley County
While many sites publish identical guide lists across every county they cover, the selection here changes by location — driven by the EPA, NSF, FEMA, and CDC datasets that describe the actual conditions documented for this jurisdiction in the federal record.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Berkeley County, South Carolina
Overview
Berkeley County in South Carolina covers 14 ZIP codes with an average Home Safety Score of B (75/100).
3 of 14 ZIP codes have recorded EPA violations. 5 health-based violations have been documented.
← Back to South Carolina 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.