Sullivan County, New York
59 ZIP codes · Avg score 53/100 · Grade D · Updated 2026-06-03
Of 59 ZIP codes in Sullivan County, a meaningful portion have recorded health-based violations in recent monitoring periods — placing the county in the lower tier for water safety.
How Sullivan County Compares
How Sullivan County Compares
Sullivan County scores 8 points below the New York state average (61/100) and 15 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Sullivan County, New York
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.8 (asthma 10.6%, diabetes 12.3%)
Estimated additional annual cost per homeowner: $2,709, driven primarily by sea_level
Infrastructure: 0.459% avg pipe failure probability, 81% of ZIPs at high risk
72.3% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
↑ Worsening trendEPA violation counts by year across Sullivan County water systems. Health-based shown in red, total in blue.
Peak year: 2025 with 37 violations. Past 5 years: 79 total (79 health-based). Health-based violations are rising versus the prior 2-year window — worth closer monitoring.
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: $2,709
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
156,432 housing units in Sullivan 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 Sullivan County
Remediation costs are relatively manageable for most homeowners in Sullivan 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 Sullivan 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 Sullivan County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Fallsburg Who-ls-sf | 7,850 | 55 |
| 2 | Woodridge Village | 902 | 42 |
| 3 | Bethel Senior Citizen Housing | 40 | 40 |
| 4 | Bethel Water Company | 177 | 33 |
| 5 | Meadows at Cross River | 630 | 32 |
52 total water systems serve Sullivan County.
All ZIP Codes in Sullivan County
59 ZIP codes tracked in Sullivan County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 12093 | Jefferson | 70 | B | 1 | $162K |
| 2 | 12745 | Hortonville | 70 | B | 1 | — |
| 3 | 12788 | Woodbourne | 70 | B | 1 | $256K |
| 4 | 12775 | Rock Hill | 68 | C | 1 | $406K |
| 5 | 12736 | Fremont Center | 66 | C | 4 (1 health) | $150K |
| 6 | 12742 | Harris | 66 | C | 0 | $326K |
| 7 | 12759 | Loch Sheldrake | 66 | C | 5 (1 health) | $78K |
| 8 | 12762 | Mongaup Valley | 66 | C | 1 | $413K |
| 9 | 12777 | Forestburgh | 66 | C | 0 | $330K |
| 10 | 12719 | Barryville | 65 | C | 0 | $264K |
| 11 | 12723 | Callicoon | 65 | C | 0 | $233K |
| 12 | 12768 | Parksville | 65 | C | 0 | $271K |
| 13 | 12701 | Monticello | 64 | C | 2 (1 health) | $178K |
| 14 | 12778 | Smallwood | 62 | C | 8 | $180K |
| 15 | 12751 | Kiamesha Lake | 61 | C | 5 (1 health) | $119K |
| 16 | 12754 | Liberty | 61 | C | 7 | $191K |
| 17 | 12789 | Woodridge | 61 | C | 13 | $160K |
| 18 | 12791 | Youngsville | 61 | C | 13 (1 health) | — |
| 19 | 12790 | Wurtsboro | 59 | C | 4 (1 health) | $203K |
| 20 | 12779 | South Fallsburg | 58 | C | 8 (3 health) | $275K |
| 21 | 12764 | Narrowsburg | 57 | C | 0 | $229K |
| 22 | 12721 | Bloomingburg | 56 | C | 4 | $308K |
| 23 | 12748 | Jeffersonville | 56 | C | 5 | $236K |
| 24 | 12733 | Fallsburg | 54 | D | 21 (4 health) | — |
| 25 | 12461 | Olivebridge | 53 | D | 0 | $404K |
| 26 | 12727 | Cochecton Center | 53 | D | 0 | — |
| 27 | 12732 | Eldred | 53 | D | 0 | $241K |
| 28 | 12734 | Ferndale | 53 | D | 0 | $242K |
| 29 | 12737 | Glen Spey | 53 | D | 0 | $281K |
| 30 | 12738 | Glen Wild | 53 | D | 0 | — |
| 31 | 12741 | Hankins | 53 | D | 0 | $357K |
| 32 | 12749 | Kauneonga Lake | 53 | D | 0 | — |
| 33 | 12752 | Lake Huntington | 53 | D | 0 | $386K |
| 34 | 12765 | Neversink | 53 | D | 0 | $403K |
| 35 | 12766 | North Branch | 53 | D | 0 | $362K |
| 36 | 12770 | Pond Eddy | 53 | D | 0 | $350K |
| 37 | 12783 | Swan Lake | 53 | D | 0 | $210K |
| 38 | 12784 | Thompsonville | 53 | D | 0 | — |
| 39 | 12786 | White Lake | 53 | D | 0 | $167K |
| 40 | 12758 | Livingston Manor | 51 | D | 3 (1 health) | $171K |
| 41 | 10461 | Bronx | 45 | D | 0 | $640K |
| 42 | 10466 | Bronx | 45 | D | 0 | $605K |
| 43 | 10469 | Bronx | 45 | D | 0 | $640K |
| 44 | 10475 | Bronx | 45 | D | 0 | $32K |
| 45 | 12404 | Accord | 45 | D | 0 | $367K |
| 46 | 12726 | Cochecton | 45 | D | 0 | $308K |
| 47 | 12760 | Long Eddy | 45 | D | 0 | $188K |
| 48 | 10803 | Pelham | 40 | D | 0 | $961K |
| 49 | 10915 | Bullville | 40 | D | 0 | — |
| 50 | 12722 | Burlingham | 40 | D | 0 | — |
| 51 | 12743 | Highland Lake | 40 | D | 0 | $342K |
| 52 | 12747 | Hurleyville | 40 | D | 0 | $302K |
| 53 | 12750 | Kenoza Lake | 40 | D | 0 | — |
| 54 | 12767 | Obernburg | 40 | D | 0 | $408K |
| 55 | 12776 | Roscoe | 40 | D | 0 | $239K |
| 56 | 12781 | Summitville | 40 | D | 0 | $436K |
| 57 | 12792 | Yulan | 40 | D | 0 | $263K |
| 58 | 10708 | Bronxville | 35 | F | 0 | $497K |
| 59 | 12720 | Bethel | 33 | F | 32 (20 health) | $405K |
Recommended Buyer Guides for Sullivan 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.
- Best Lead Paint Test Kits — 72.3% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Sullivan County, New York
Overview
Sullivan County in New York covers 59 ZIP codes with an average Home Safety Score of D (53/100).
20 of 59 ZIP codes have recorded EPA violations. 34 health-based violations have been documented.
← Back to New York 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.
What You Can Do
Sullivan County has a grade of D. Here are steps to protect your household.
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.
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
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.
Check for lead in your home
72.3% of homes in this county were built before 1978. Older plumbing and solder can leach lead into drinking water, especially in the morning.