Sullivan County, Indiana
8 ZIP codes · Avg score 73/100 · Grade B · Updated 2026-06-03
Compared to state averages, Sullivan County scores well — its 8 ZIP codes sit above the baseline for tap water quality.
How Sullivan County Compares
How Sullivan County Compares
Sullivan County scores 13 points above the Indiana state average (60/100) and 5 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Sullivan County, Indiana
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.7 (asthma 11.3%, diabetes 14.1%)
Estimated additional annual cost per homeowner: $315, driven primarily by energy_code_gap
Infrastructure: 0.37% avg pipe failure probability, 43% of ZIPs at high risk
56.1% of homes built before 1978 (lead paint era)
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: $315
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
7,738 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 | Shelburn Water Utilities | 2,100 | 6 |
| 2 | INDIANA AMERICAN WATER - FARMERSBURG | 2,095 | 6 |
| 3 | Wilfred Water Corporation | 400 | 5 |
| 4 | Carlisle Water Department | 3,125 | 4 |
| 5 | Dugger Utilities | 1,935 | 4 |
10 total water systems serve Sullivan County.
All ZIP Codes in Sullivan County
8 ZIP codes tracked in Sullivan County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 47855 | Hymera | 83 | B | 1 | $79K |
| 2 | 47838 | Carlisle | 82 | B | 4 (1 health) | $121K |
| 3 | 47879 | Shelburn | 79 | B | 5 | $94K |
| 4 | 47861 | Merom | 72 | B | 0 | $168K |
| 5 | 47865 | Paxton | 72 | B | 0 | — |
| 6 | 47882 | Sullivan | 72 | B | 1 | $143K |
| 7 | 47848 | Dugger | 69 | C | 3 | $98K |
| 8 | 47852 | Graysville | 53 | D | 0 | — |
Recommended Buyer Guides for Sullivan County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Lead Paint Test Kits — 56.1% of homes built before 1978
Deep Dive Reports
Detailed analysis for Sullivan County, Indiana
Overview
Sullivan County in Indiana covers 8 ZIP codes with an average Home Safety Score of B (73/100).
5 of 8 ZIP codes have recorded EPA violations. 1 health-based violation have been documented.
← Back to Indiana 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.