CITY REPORT IL

Osco, IL: High Radon Risk - Home Safety Score unavailable

1 ZIP code · 1 water system · Updated

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
Zone 1
Radon Risk (High)
$131K
Median Home Value
$1,200
Est. Remediation (0.9% of home value)

Key Facts for Osco Residents

  • Average lead level: 0.0013 mg/L.
  • Homes built before 1986: 100% - older plumbing may contain lead solder.
  • Estimated remediation: $1,200 per household.
  • CDC health risk index: 13.54 - above typical levels.

Osco's Water Providers

As of current federal records, Osco, IL is served primarily by one water utility among 1 tracked system. That single provider handles infrastructure investment, rate adjustments, and regulatory reporting under EPA oversight.

Overview

We track home safety data for 1 ZIP code in Osco, Illinois (population ~206), covering 1 community water system serving approximately 2,086 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Water Sources

Osco water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0013 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 1 (High Risk)

The EPA recommends testing homes in Zone 1 and Zone 2 areas for radon.

Areas with No Violations

ZIP Code Safety Score System Population
61274 Cambridge 2,086

All ZIP Codes in Osco

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Osco Community Health Snapshot

10.2%
Asthma (US: 9.8%)
11.9%
Diabetes (US: 10.4%)
16.2%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.

Compared to National Average

Asthma 10.2% ↑
Diabetes 11.9% ↑
Mental Health 16.2% ↑

Vertical line = national average. Above national · Below national

Osco Infrastructure Age

1902
Median Build Year
100%
Built Before 1986
92%
Built Before 1970
Galvanized Steel or Lead
Likely Pipe Material

With 100% of homes built before 1986, lead solder in plumbing is a potential concern. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

When a city's housing median build year is 1902, as in Osco, the implication for water quality research is straightforward: municipal-level data captures what leaves the treatment plant, but household plumbing from before 1986 determines what actually arrives at the tap. In cities where older housing predominates, that gap between system-level and household-level data is widest.

1902
Median Year Built
100%
Pre-1986 (Lead Paint Risk)
92%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (92%) 1970–1986 (8%) Post-1986 (0%)

Over half of homes in Osco were built before 1986, when lead solder was banned. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Osco

For most homeowners in Osco, the estimated cost of water and safety remediation represents a proportionally modest share of what properties are worth - placing this area in the lower tier of the remediation share scale.

Median Home Value
$130,700
Est. Remediation
$1,200
Remediation as % of home value 0.9%

Remediation costs in Osco are relatively low compared to home values. The $800–$1,500 estimated range is a small fraction of median property value. Home values are 29% below the Illinois average.

Osco: Lead Risk & Vulnerable Populations

100%
Homes Built Before 1986
0.0013
mg/L Avg Lead (Limit: 0.015)

Why children are most at risk: The CDC states there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

Older stock in Osco represents 100% of the inventory, and citywide monitoring runs at or above the federal action level - making an in-home read a standard household-level step.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Frequently Asked Questions

Does Osco water have lead?
The average 90th-percentile lead level in Osco is 0.0013 mg/L. This is below the EPA action level of 0.015 mg/L. Lead levels can vary by home - testing is recommended especially in older properties.
How many water systems serve Osco?
Osco is served by 1 public water system across 1 ZIP code, serving approximately 206 people.
How much does it cost to fix water issues in Osco?
Estimated remediation costs in Osco average $1,200 per household, ranging from $800 to $1,500. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Osco, IL

How to cite this page

APA ZipCheckup. (2026). Osco, IL: High Radon Risk - Home Safety Score unavailable. https://zipcheckup.com/cities/il/osco/
BibTeX
@misc{zipcheckup-cities-il-osco,
  author = {{ZipCheckup}},
  title  = {{Osco, IL: High Radon Risk - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/osco/}
}

Page version: August 2026.

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