Within Baton Rouge, safety indicators for tap water remain above the LA median - documented violations are infrequent and the city's compliance record sits in the upper tier.

Data: EPA SDWIS, FEMA NFIP, Census ACS Last verified: 2026-07-19

Water Quality in Baton Rouge

We track water quality and home safety data for 42 ZIP codes in Baton Rouge, Louisiana (population ~386,722), covering 8 community water systems serving approximately 808,354 people region-wide.

No EPA violations have been recorded across any ZIP codes in Baton Rouge - an excellent indicator of water quality.

Average Home Safety Score: A (89/100)

Water sources: Groundwater, Surface water.

Lead Risk

• Average lead level (90th percentile): 0.0010 mg/L
• 55% of housing built before 1986 (when lead solder was banned)
• 6% of housing built before 1950 (when lead pipes were standard)
• Median year built: 1980
• Most common estimated pipe material: Copper
• Lead exposure risk score: 36/100
• Estimated lead service line probability: 17%
• 7 ZIP codes classified as high or very high lead risk

With 55% of homes built before the 1986 lead solder ban, Baton Rouge residents - especially those in older neighborhoods - should consider testing their tap water for lead. Homes built before 1950 are at the highest risk of having lead service lines.

Housing Age Distribution

177,381 total housing units across 42 ZIP codes:

Flood Risk

FEMA National Flood Insurance Program data for Baton Rouge:

• 18,082 flood insurance claims on record
• $1,042,964,397 total paid out
• $57,680 average claim payout
• Dominant FEMA flood zone: AE (High risk)
• 24 of 42 ZIP codes in high-risk flood zones (A/V)

Radon Risk

Dominant EPA radon zone: Zone 3 (Low Risk)

• Zone 1 (High): 0 ZIP codes
• Zone 2 (Moderate): 0 ZIP codes
• Zone 3 (Low): 42 ZIP codes

Neighborhoods by Safety Score

Safest Areas

Areas Needing Attention

What Baton Rouge Residents Can Do

Test Your Water

• Order a certified lab test - home test kits cost $20–50 and cover lead, bacteria, and common contaminants
• Request your utility's CCR (Consumer Confidence Report) - your water provider must publish this annually
• Check your ZIP code - each area in Baton Rouge has different water systems and risk levels

Filter Your Water

• NSF-certified pitcher filter removes chlorine taste and some contaminants ($20–40)
• NSF 53-certified filter for lead - recommended for homes built before 1986
• Reverse osmosis system removes 95%+ of contaminants including lead, PFAS, and nitrates ($150–400)

Stay Informed

• Visit your ZIP code report for detailed, address-level data
• Sign up for EPA water quality alerts
• Review the annual water quality report from your local utility

All ZIP Codes in Baton Rouge

• 70801 [A]
• 70802 [B]
• 70803 [A]
• 70804 [A]
• 70805 [B]
• 70806 [A]
• 70807 [A]
• 70808 [B]
• 70809 [B]
• 70810 [B]
• 70811 [B]
• 70812 [B]
• 70813 [A]
• 70814 [B]
• 70815 [B]
• 70816 [B]
• 70817 [B]
• 70818 [B]
• 70819 [B]
• 70820 [B]
• 70821 [A]
• 70822 [A]
• 70823 [A]
• 70825 [A]
• 70826 [A]
• 70827 [A]
• 70831 [A]
• 70833 [A]
• 70835 [A]
• 70836 [A]
• 70837 [A]
• 70873 [A]
• 70874 [A]
• 70879 [A]
• 70884 [A]
• 70891 [A]
• 70892 [A]
• 70893 [A]
• 70894 [A]
• 70895 [A]
• 70896 [A]
• 70898 [A]

Frequently Asked Questions

Is the tap water safe to drink in Baton Rouge, LA?

Baton Rouge has an average Home Safety Score of 89/100 (grade A) across 42 ZIP codes. No EPA violations have been recorded. Safety varies by neighborhood - check your specific ZIP code report for details.

Does Baton Rouge have lead in the water?

The average 90th-percentile lead level across Baton Rouge is 0.0010 mg/L, below the EPA action level of 0.015 mg/L. No ZIP codes currently exceed the EPA lead action level. About 55% of housing was built before 1986, when lead solder was banned.

Is Baton Rouge at risk for flooding?

FEMA data shows 18,082 flood insurance claims in Baton Rouge ZIP codes, with an average payout of $57,680. 24 of 42 ZIP codes are in high-risk FEMA flood zones (A or V).

Are there lead pipes in Baton Rouge homes?

55% of Baton Rouge housing was built before 1986, when lead solder was common in plumbing. 6% was built before 1950, when lead pipes were standard. The most common estimated pipe material is Copper. The estimated probability of lead service lines is 17%. We recommend testing your water if your home was built before 1986.

Data Sources

• Water quality: EPA Safe Drinking Water Information System (SDWIS)
• Lead/copper: EPA Lead and Copper Rule sampling data
• Housing age: U.S. Census Bureau American Community Survey
• Flood data: FEMA National Flood Insurance Program
• Lead exposure: Composite risk score based on housing age, water lead levels, and service line estimates
• Radon: EPA Map of Radon Zones

Updated daily.

Housing Age Profile

Post-1986 construction is where the lower lead-solder risk lives, because that's when the federal ban on lead solder in plumbing took effect. In Baton Rouge, where the median build year is 1980, the housing stock falls broadly on the newer side of that threshold - a distribution that moderates aggregate plumbing-era risk compared to older housing markets.

1980

Median Year Built

0%

Pre-1986 (Lead Paint Risk)

0%

Pre-1970 (Lead Pipes Risk)

Most homes in Baton Rouge 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.

Baton Rouge: Lead Risk & Vulnerable Populations

0.001

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.

Lead risk in Baton Rouge appears low overall, but individual homes may differ. Testing is the only way to confirm your water's lead content.

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

Baton Rouge: Flood History & Water Damage Risk

18082 FEMA flood insurance claims are on file for Baton Rouge, and 0% of local ZIP codes fall within federally designated flood zones - enough to put flood exposure on the planning radar, though short of the concentrated-risk threshold where treatment-system vulnerability becomes a primary consideration.

18,082

Total FEMA Flood Claims

~904

Est. Claims/Year

Baton Rouge has a moderate flood history with 18,082 FEMA claims. 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.

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.