CITY REPORT IL

Cortland, IL: 3 Violations - Home Safety Score unavailable

1 ZIP code · 2 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
2
Water Systems
1
ZIPs with Violations
Zone 1
Radon Risk (High)
$202K
Median Home Value
$3,000
Est. Remediation (1.5% of home value)

What You Should Know About Cortland Water

  • Your city's water systems recorded 3 violations in the past 5 years.
  • Average lead level: 0.013 mg/L.
  • Homes built before 1986: 37% - older plumbing may contain lead solder.
  • Estimated remediation: $3,000 per household.
  • CDC health risk index: 11.8.

Who Supplies Your Water in Cortland

2 water systems are tracked federally in Cortland, IL. The top 2 providers collectively serve most residential addresses, but because they operate independently, infrastructure maintenance standards and compliance histories differ from one service zone to another.

  • Dekalb
    Serves ~40,290 people 2 violations
  • Cortland
    Serves ~4,398 people 1 violation

Overview

We track home safety data for 1 ZIP code in Cortland, Illinois (population ~4,611), covering 2 community water systems serving approximately 44,688 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Water Sources

Cortland water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0130 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.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Surface Water Treatment Rule Treatment Technique 4 1
Gross Beta Radionuclides 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
60112 3 0 Cortland

All ZIP Codes in Cortland

Data Sources

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

Health Outcomes in Cortland

10.4%
Asthma (US: 9.8%)
10.3%
Diabetes (US: 10.4%)
18.3%
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 10.4% ↑
Diabetes 10.3% ↓
Mental Health 18.3% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Cortland Water

Surface Water Treatment Rule 4 violations
Treatment Technique
Pathogens may not be adequately removed
Gross Beta 2 violations
Radionuclides · EPA limit: 50 pCi/L

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Housing & Infrastructure in Cortland

1995
Median Build Year
37%
Built Before 1986
17%
Built Before 1970
Copper
Likely Pipe Material

Housing age data helps assess potential lead pipe and infrastructure risks. Newer housing stock generally means lower plumbing-related contamination risk.

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

Housing Age Profile

Some cities skew heavily toward one construction era; Cortland does not. The median build year of 1995 reflects a housing stock where older and newer homes share the market in meaningful proportions. That mixed profile means the city carries moderate aggregate plumbing-era risk - with older homes, particularly those built before 1986, representing the portion of the stock where lead-soldered joints may still be present.

1995
Median Year Built
37%
Pre-1986 (Lead Paint Risk)
17%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (17%) 1970–1986 (20%) Post-1986 (63%)

Most homes in Cortland were built after 1986, reducing the risk of lead contamination from plumbing. Older homes should still be tested.

Source: U.S. Census Bureau ACS B25034.

Cost Context: What Remediation Means for Cortland Homeowners

Although the Cortland remediation share is moderate, it remains reachable for most homeowners who plan for the expense in advance.

Median Home Value
$202,400
Est. Remediation
$3,000
Remediation as % of home value 1.5%

Remediation costs are moderate relative to home values in Cortland. The estimated $2,000–$4,000 range is manageable for most homeowners but still worth budgeting for. Home values are 10% above the Illinois average.

Lead Exposure Risk for Children in Cortland

37%
Homes Built Before 1986
0.013
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.

If 37% of the Cortland inventory comes from before the federal ban on lead-bearing solder - and if utility samples sit at or near 0.015 mg/L - the gap between citywide averages and one specific faucet becomes a practical concern rather than a theoretical one. That is why one-home reads exist as a separate measurement. A certified filter through retailer networks addresses confirmed exposure where it appears in a household.

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

Historical NFIP Claim Context in Cortland

2
Total FEMA Flood Claims
$43,817
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Cortland contains 2 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $43,817. Among ZIP codes with claim records, 0% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure. The <strong>$3,000</strong> remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

How many water violations does Cortland have?
Cortland water systems have a total of 3 EPA violations. Violations are tracked across 1 ZIP code.
Does Cortland water have lead?
The average 90th-percentile lead level in Cortland is 0.013 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 Cortland?
Cortland is served by 2 public water systems across 1 ZIP code, serving approximately 4,611 people.
How much does it cost to fix water issues in Cortland?
Estimated remediation costs in Cortland average $3,000 per household, ranging from $2,000 to $4,000. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Cortland, IL

How to cite this page

APA ZipCheckup. (2026). Cortland, IL: 3 Violations - Home Safety Score unavailable. https://zipcheckup.com/cities/il/cortland/
BibTeX
@misc{zipcheckup-cities-il-cortland,
  author = {{ZipCheckup}},
  title  = {{Cortland, IL: 3 Violations - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/cortland/}
}

Page version: August 2026.

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