Crestwood, KY Water Safety: 63/100 (2026)
1 ZIP code · 4 water systems · Updated 2026-06-03
Public water data for Crestwood, KY reveals a split picture — tap water quality varies meaningfully by service area and the city's grade reflects that variability.
How Crestwood Compares
Data: EPA SDWIS Last verified: 2026-06-03
Crestwood Water: The Quick Version
- Homes built before 1986: 37% — older plumbing may contain lead solder.
- Estimated remediation: $2,200 per household.
Water Systems Serving Crestwood
Water service in Crestwood, KY is split across 3 utilities out of 4 tracked federally, each operating its own infrastructure and compliance record.
Overview
We track water quality and home safety data for 1 ZIP code in Crestwood, Kentucky (population ~23,039), covering 4 community water systems serving approximately 835,554 people region-wide.
No EPA violations recorded across any ZIP codes in Crestwood — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Crestwood: C (63/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Crestwood water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Crestwood
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 2 (Moderate 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 |
|---|---|---|---|
| 40014 | C | OLDHAM COUNTY WATER DISTRICT | 38,409 |
All ZIP Codes in Crestwood
- 40014 [C]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
How Old Is Crestwood's Housing Stock?
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
Reading the housing data for Crestwood, with a median build year of 1996, reveals a community where neither old nor new construction dominates. That balanced profile means lead-solder-era plumbing is present throughout a meaningful portion of the residential inventory — with risk concentrated in properties built before 1986 and most acute in those that predate 1970.
Most homes in Crestwood 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.
Crestwood: Remediation Cost in Perspective
Low proportionality — that's the Crestwood picture when remediation costs are placed against typical home equity.
Remediation costs in Crestwood are relatively low compared to home values. The $1,200–$3,400 estimated range is a small fraction of median property value. Home values are 156% above the Kentucky average.
Protecting Children from Lead in Crestwood
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.
Households with kids in the home — for whom CDC guidance places particular weight on minimizing exposure — face a specific local picture in Crestwood. 37% of homes here come from the pre-rule era, and aggregate utility samples either approach or cross 0.015 mg/L. A baseline draw-test kit and certified lead-removal filtration are available via retailer networks for households confirming conditions at a specific tap.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Climate-Related Water Risk for Crestwood
Taken together, Crestwood's 3 NFIP flood insurance claims and 100% FEMA flood zone coverage place it in the moderate range of exposure. That middle position has specific implications for water quality. The contamination pathways that flooding can open — surface water overwhelming treatment facility intake, floodwaters infiltrating private wells, distribution pressure changes creating backflow — are not constant risks in a moderate-exposure community. But they do become active during significant flood events, and the claim record here indicates enough of those events to make flood timing an occasional factor in local water quality conversations.
Crestwood has a moderate flood history with 3 FEMA claims averaging $1,434 per payout. 100% of ZIP codes fall within FEMA flood zones. Flood events can contaminate drinking water and overwhelm treatment systems.
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. Flood damage can add significantly to the estimated <strong>$2,200</strong> remediation cost per household.
Residents in flood-prone areas should consider flood insurance even outside FEMA zones — over 25% of flood claims come from low-to-moderate risk areas. After any flood event, test your water before drinking.
Source: FEMA National Flood Insurance Program (NFIP) claims data, FEMA flood zone designations.
What You Can Do in Crestwood
- Test your water at home. City-level data shows averages — your tap may differ. NSF-certified test kits cost $20-40 and give results in days.
- Install a certified water filter. An NSF-certified pitcher or under-sink filter removes most common contaminants.
- Check your home's plumbing. With 37% of homes built before 1986, lead solder is a real possibility.
Deep Dive Reports
Detailed analysis for Crestwood, KY