Longport, NJ Water Safety: 72/100 (2026)
1 ZIP code · 2 water systems · Updated 2026-06-03
Water systems serving Longport hold a strong EPA compliance record — the city places among the better-performing areas in NJ with few health-based violations on file.
How Longport Compares
Data: EPA SDWIS Last verified: 2026-06-03
What You Should Know About Longport Water
- Average lead level: 0.0062 mg/L.
- Homes built before 1986: 68% — older plumbing may contain lead solder.
- Estimated remediation: $2,400 per household.
- CDC health risk index: 12.5 — above typical levels.
Who Supplies Your Water in Longport
2 independent water providers serve Longport, NJ — 2 systems appear in federal records.
Overview
We track water quality and home safety data for 1 ZIP code in Longport, New Jersey (population ~1,012), covering 2 community water systems serving approximately 130,923 people region-wide.
No EPA violations recorded across any ZIP codes in Longport — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Longport: B (72/100)
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
Longport water systems draw from: Groundwater.
Lead & Copper
- Average lead level (90th percentile): 0.0062 mg/L (EPA action level: 0.015 mg/L)
- 0 ZIP codes exceed the EPA lead action level
Radon Risk
Dominant radon zone: Zone 3 (Low Risk)
Areas with No Violations
| ZIP Code | Safety Score | System | Population |
|---|---|---|---|
| 08403 | B | Longport Water Department | 10,777 |
All ZIP Codes in Longport
- 08403 [B]
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.
Health Outcomes in Longport
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
Housing & Infrastructure in Longport
With 68% 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 1975, as in Longport, 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.
Over half of homes in Longport 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 Longport Homeowners
The household financial picture for Longport homeowners is proportionally favorable — addressing documented issues claims a small slice of equity, and the cost-to-value ratio puts this area well within the manageable tier.
Remediation costs in Longport are relatively low compared to home values. The $1,600–$3,300 estimated range is a small fraction of median property value. Home values are 115% above the New Jersey average.
Lead Exposure Risk for Children in Longport
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.
After the federal action removing lead-bearing solder from new plumbing took effect, building practice shifted — but 68% of the Longport inventory predates that line. With aggregate samples near or beyond 0.015 mg/L, an in-home check moves out of the optional column into the standard list.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Flood & Climate Risk in Longport
What does a high NFIP claim count mean for water quality in Longport? The 1335 documented claims reflect a flood history frequent enough that those infrastructure degradation pathways — treatment overload, well infiltration, backflow — have almost certainly been periodically activated. That record makes flood timing a relevant factor in local water quality assessment, particularly in the 100% of ZIP codes FEMA has designated as flood zones.
Longport has a significant flood history with 1,335 FEMA flood insurance claims on record, averaging $28,889 per claim. With 100% of ZIP codes in FEMA-designated flood zones, flood risk is a major concern for homeowners and water quality.
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>$2,400</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.
Deep Dive Reports
Detailed analysis for Longport, NJ