Peoria County, Illinois
40 ZIP codes · Avg score 37/100 · Grade F · Updated 2026-06-03
Unlike better-scoring counties, Peoria County records health-based violations across a meaningful portion of its 40 ZIP codes — the overall safety grade is well below average.
How Peoria County Compares
How Peoria County Compares
Peoria County scores 24 points below the Illinois state average (61/100) and 31 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
ZIP Code Risk Map
Water Quality Map: Peoria County, Illinois
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 13.2 (asthma 10.6%, diabetes 12.6%)
Estimated additional annual cost per homeowner: $1,199, driven primarily by flood
Infrastructure: 0.407% avg pipe failure probability, 35% of ZIPs at high risk
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: $1,199
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Peoria County
Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.
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 Peoria 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 Peoria County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | IL AMERICAN-PEORIA | 137,575 | 225 |
| 2 | Limestone-walters Pwd | 2,023 | 213 |
| 3 | Pleasant Valley Pwd | 3,783 | 208 |
| 4 | Peoria Heights | 5,908 | 26 |
| 5 | T-l Rural Water District | 2,665 | 13 |
18 total water systems serve Peoria County.
All ZIP Codes in Peoria County
40 ZIP codes tracked in Peoria County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 61525 | Dunlap | 70 | B | 0 | $315K |
| 2 | 61529 | Elmwood | 70 | B | 0 | $155K |
| 3 | 61536 | Hanna City | 70 | B | 0 | $176K |
| 4 | 61533 | Glasford | 66 | C | 2 (1 health) | $152K |
| 5 | 61539 | Kingston Mines | 63 | C | 4 | $71K |
| 6 | 61547 | Mapleton | 61 | C | 3 | $231K |
| 7 | 61559 | Princeville | 55 | C | 0 | $172K |
| 8 | 61526 | Edelstein | 53 | D | 0 | $270K |
| 9 | 61528 | Edwards | 45 | D | 0 | $305K |
| 10 | 61552 | Mossville | 45 | D | 0 | $93K |
| 11 | 61523 | Chillicothe | 42 | D | 10 | $152K |
| 12 | 61562 | Rome | 40 | D | 0 | — |
| 13 | 61569 | Trivoli | 40 | D | 0 | $194K |
| 14 | 61616 | Peoria Heights | 39 | F | 2 | $118K |
| 15 | 61606 | Peoria | 37 | F | 8 (2 health) | $120K |
| 16 | 61613 | Peoria | 37 | F | 8 (2 health) | — |
| 17 | 61650 | Peoria | 37 | F | 8 (2 health) | — |
| 18 | 61652 | Peoria | 37 | F | 8 (2 health) | — |
| 19 | 61653 | Peoria | 37 | F | 8 (2 health) | — |
| 20 | 61655 | Peoria | 37 | F | 8 (2 health) | — |
| 21 | 61602 | Peoria | 32 | F | 8 (2 health) | $223K |
| 22 | 61603 | Peoria | 32 | F | 8 (2 health) | $73K |
| 23 | 61607 | Peoria | 32 | F | 8 (2 health) | $155K |
| 24 | 61625 | Peoria | 23 | F | 8 (2 health) | — |
| 25 | 61629 | Peoria | 23 | F | 8 (2 health) | — |
| 26 | 61630 | Peoria | 23 | F | 8 (2 health) | — |
| 27 | 61633 | Peoria | 23 | F | 8 (2 health) | — |
| 28 | 61634 | Peoria | 23 | F | 8 (2 health) | — |
| 29 | 61636 | Peoria | 23 | F | 8 (2 health) | — |
| 30 | 61637 | Peoria | 23 | F | 8 (2 health) | — |
| 31 | 61638 | Peoria | 23 | F | 8 (2 health) | — |
| 32 | 61639 | Peoria | 23 | F | 8 (2 health) | — |
| 33 | 61641 | Peoria | 23 | F | 8 (2 health) | — |
| 34 | 61643 | Peoria | 23 | F | 8 (2 health) | — |
| 35 | 61651 | Peoria | 23 | F | 8 (2 health) | — |
| 36 | 61654 | Peoria | 23 | F | 8 (2 health) | — |
| 37 | 61656 | Peoria | 23 | F | 8 (2 health) | — |
| 38 | 61604 | Peoria | 22 | F | 8 (2 health) | $100K |
| 39 | 61614 | Peoria | 22 | F | 8 (2 health) | $170K |
| 40 | 61615 | Peoria | 22 | F | 8 (2 health) | $207K |
Recommended Buyer Guides for Peoria County
Designed to find the guide that fits the county, not the other way around — the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.
- Best Water Filters for Lead — Lead above EPA action level in 26 ZIP codes
- 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
- 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 Peoria County, Illinois
Overview
Peoria County in Illinois covers 40 ZIP codes with an average Home Safety Score of F (37/100).
31 of 40 ZIP codes have recorded EPA violations. 53 health-based violations have been documented.
← Back to Illinois 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
Peoria County has a grade of F. 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.