Osceola County, Florida
11 ZIP codes · Avg score 73/100 · Grade B · Updated 2026-06-03
The 11 water systems serving Osceola County show strong compliance with federal drinking water standards.
How Osceola County Compares
How Osceola County Compares
Osceola County scores 0 points above the Florida state average (73/100) and 5 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Osceola County, Florida
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 12.6 (asthma 9.1%, diabetes 13.4%)
Estimated additional annual cost per homeowner: $5,405, driven primarily by sea_level
Infrastructure: 0.187% avg pipe failure probability, 9% of ZIPs at high risk
26.2% 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: $5,405
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
118,374 housing units in Osceola 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 Osceola County
Remediation costs are relatively manageable for most homeowners in Osceola 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 Osceola 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 Osceola County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Toho Water Authority-poinciana System | 69,447 | 143 |
| 2 | Toho Water Authority Eastern | 110,102 | 128 |
| 3 | Toho Water Authority Western | 40,330 | 128 |
| 4 | Harmony Cdd | 6,221 | 128 |
| 5 | Pleasant Hill Lakes S/d | 2,957 | 128 |
11 total water systems serve Osceola County.
All ZIP Codes in Osceola County
11 ZIP codes tracked in Osceola County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 34739 | Kenansville | 81 | B | 15 | $187K |
| 2 | 34742 | Kissimmee | 81 | B | 16 | — |
| 3 | 34745 | Kissimmee | 81 | B | 16 | — |
| 4 | 34747 | Kissimmee | 76 | B | 16 | $456K |
| 5 | 34773 | Saint Cloud | 73 | B | 0 | $313K |
| 6 | 34741 | Kissimmee | 71 | B | 16 | $270K |
| 7 | 34743 | Kissimmee | 71 | B | 16 | $278K |
| 8 | 34746 | Kissimmee | 71 | B | 16 | $329K |
| 9 | 34758 | Kissimmee | 71 | B | 16 | $280K |
| 10 | 33858 | Loughman | 66 | C | 0 | — |
| 11 | 34744 | Kissimmee | 66 | C | 16 | $327K |
Recommended Buyer Guides for Osceola County
Four sources — EPA, NSF, FEMA, CDC — drive the match.
- Best Water Testing Kits — Baseline water quality check for your ZIP
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant peace of mind
Deep Dive Reports
Detailed analysis for Osceola County, Florida
Overview
Osceola County in Florida covers 11 ZIP codes with an average Home Safety Score of B (73/100).
9 of 11 ZIP codes have recorded EPA violations. All violations are monitoring/reporting type.
← Back to Florida 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.