CITY REPORT IL

Stillman Valley, IL - Home Safety Score unavailable

1 ZIP code · 3 water systems · Updated

Data: EPA SDWIS

1
ZIP Codes
3
Water Systems
1
ZIPs with Violations
Zone 1
Radon Risk (High)
$204K
Median Home Value
$2,400
Est. Remediation (1.2% of home value)

What You Should Know About Stillman Valley Water

  • Your city's water systems recorded 10 violations in the past 5 years.
  • Average lead level: 0.0073 mg/L.
  • Homes built before 1986: 63% - older plumbing may contain lead solder.
  • Estimated remediation: $2,400 per household.
  • CDC health risk index: 13.85 - above typical levels.

Who Supplies Your Water in Stillman Valley

3 water utilities share the residential service territory in Stillman Valley, IL - out of 3 total systems in federal records.

Overview

We track home safety data for 1 ZIP code in Stillman Valley, Illinois (population ~3,166), covering 3 community water systems serving approximately 150,595 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

Stillman Valley water systems draw from: Groundwater.

Lead & Copper

  • Average lead level (90th percentile): 0.0073 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
Contaminant 2959 Other 4 1
Lead Inorganic 2 1
Contaminant 2031 Other 2 1
Contaminant 2041 Other 2 1
Contaminant 2105 Other 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
61084 10 0 Davis Junction

All ZIP Codes in Stillman Valley

Data Sources

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

Health Outcomes in Stillman Valley

10.1%
Asthma (US: 9.8%)
12.2%
Diabetes (US: 10.4%)
16.4%
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 10.1% ↑
Diabetes 12.2% ↑
Mental Health 16.4% ↑

Vertical line = national average. Above national · Below national

Top Contaminants in Stillman Valley Water

Contaminant 2959 4 violations
Other
Lead 2 violations
Inorganic · EPA limit: 0.015 mg/L
Contaminant 2031 2 violations
Other

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

Housing & Infrastructure in Stillman Valley

1972
Median Build Year
63%
Built Before 1986
15%
Built Before 1970
Copper
Likely Pipe Material

With 63% 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

Two dates define the high-risk tiers of residential plumbing from a lead standpoint: 1970, before which lead pipes were commonly installed for service connections, and 1986, before which lead solder was standard in copper plumbing. A median build year of 1972 places Stillman Valley's housing distribution well within that older risk zone. The bar chart above breaks down how much of the stock falls into each era - and the pre-1986 share alone represents more than half the residential inventory, making plumbing-era risk a defining characteristic of the local water safety picture.

1972
Median Year Built
63%
Pre-1986 (Lead Paint Risk)
15%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (15%) 1970–1986 (48%) Post-1986 (37%)

Over half of homes in Stillman Valley 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.

Cost Context: What Remediation Means for Stillman Valley Homeowners

The household financial perspective in Stillman Valley reflects a moderate cost-to-value ratio - an equity share that is not trivially small but remains within the range where most homeowners can address documented water and safety issues by treating the expense as a real line item in property planning rather than a discretionary one.

Median Home Value
$204,400
Est. Remediation
$2,400
Remediation as % of home value 1.2%

Remediation costs are moderate relative to home values in Stillman Valley. The estimated $1,600–$3,300 range is manageable for most homeowners but still worth budgeting for. Home values are 11% above the Illinois average.

Lead Exposure Risk for Children in Stillman Valley

63%
Homes Built Before 1986
0.0073
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.

Although utility-side compliance with federal Lead and Copper requirements remains the system reference, that compliance does not extend down into interior plumbing. With 63% of Stillman Valley stock built before the solder ban and aggregate readings at or beyond the action mark, a household-level sample becomes the practical way to close that information gap.

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

Historical NFIP Claim Context in Stillman Valley

3
Total FEMA Flood Claims
$18,869
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Stillman Valley contains 3 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $18,869. 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>$2,400</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 Stillman Valley have?
Stillman Valley water systems have a total of 10 EPA violations. Violations are tracked across 1 ZIP code.
Does Stillman Valley water have lead?
The average 90th-percentile lead level in Stillman Valley is 0.0073 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 Stillman Valley?
Stillman Valley is served by 3 public water systems across 1 ZIP code, serving approximately 3,166 people.
How much does it cost to fix water issues in Stillman Valley?
Estimated remediation costs in Stillman Valley average $2,400 per household, ranging from $1,600 to $3,300. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesIllinois → Stillman Valley, IL

How to cite this page

APA ZipCheckup. (2026). Stillman Valley, IL - Home Safety Score unavailable. https://zipcheckup.com/cities/il/stillman-valley/
BibTeX
@misc{zipcheckup-cities-il-stillman-valley,
  author = {{ZipCheckup}},
  title  = {{Stillman Valley, IL - Home Safety Score unavailable}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/il/stillman-valley/}
}

Page version: August 2026.

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