Prairie City
EPA ID: IL1090400 · 425 people served · 2 ZIP codes
ZipCheckup's reading of EPA records for Prairie City (IL1090400): no drinking-water violations recorded since 2021. Nothing in the federal violation file is listed against Prairie City, a system that provides water to roughly 425 people.
Data: EPA SDWIS
Service Area Map
Coverage area for Prairie City Source: EPA SDWIS service area boundaries.
Service area boundary
Demographics of ZIP Codes Served
The ZIP codes associated with Prairie City have a median household income of $50,759 and about 3,554 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 83% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.
Environmental Justice Note: On average, 40% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.
💧 Where Does Your Water Come From?
Prairie City's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.
Wastewater Proximity Note: This service area ranks in the 70th percentile nationally for proximity to wastewater discharge points.
Infrastructure Risk
Comparable Water Systems
Similar-sized systems in Illinois
System Overview
Prairie City (EPA ID: IL1090400) is a community water system in Illinois that serves approximately 425 people from groundwater sources.
This system provides water to 2 ZIP codes across 2 communities.
Violation History
Lead & Copper
EPA Lead and Copper Rule evidence attributed directly to this water system:
| Lead Level | Exceeds Action Level | Sample Date |
|---|---|---|
| Below the reporting limit | No | 2025-12-31 |
No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.
Need help with your water quality?
Typical cost: Water test: typically $20–$50 (DIY kit) · Professional inspection: $150–$400
Find the Right Water FilterFree tip: Ask your water utility whether running cold water for 2 minutes is enough to flush your plumbing before drinking.
ZIP Codes Served
Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by IL or modeled from parcel and building-footprint data.
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Prairie City (IL1090400) on EPA.gov.
Frequently Asked Questions
Is Prairie City water safe to drink?
The accepted 2026Q2 ECHO snapshot contains zero violation records for Prairie City in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.
How many people does Prairie City serve?
Prairie City serves approximately 425 people across 2 ZIP codes in Illinois.
Where does Prairie City get its water?
The primary water source is groundwater.
Frequently Asked Questions
How to cite this page
ZipCheckup. (n.d.). Prairie City Water Quality Report, IL. https://zipcheckup.com/water-system/il1090400/
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title = {{Prairie City Water Quality Report, IL}},
year = {n.d.},
url = {https://zipcheckup.com/water-system/il1090400/}
}