Baton Rouge, LA water hardness

Tap water hardness
23mg/L
1.4gpg
Soft

Reported by Baton Rouge Water Company · September 2025

LA typical
102 mg/L
EPA health violations since 2016
0
Data
Utility report

Baton Rouge water measures 23 mg/L (1.4 gpg) of hardness, soft by USGS standards. The number comes from Baton Rouge Water Company, dated September 2025.

Baton Rouge on the hardness scale, with nearby cities
060120180240300360+LA typical 102Port Allen: 19 mg/LPort Allen 19Hammond: 27 mg/LHammond 27Zachary: 55 mg/LZachary 55Prairieville: 66 mg/LPrairieville 66Carencro: 99 mg/LCarencro 99Scott: 99 mg/LScott 99Lafayette: 102 mg/LLafayette 102New Iberia: 136 mg/LNew Iberia 136Youngsville: 147 mg/LYoungsville 147Broussard: 159 mg/LBroussard 159Baton Rouge 23mg/L as calcium carbonate060120180240300360+LA 102Port Allen: 19 mg/LPort Allen 19Hammond: 27 mg/LHammond 27Zachary: 55 mg/LZachary 55Prairieville: 66 mg/LPrairievil. 66New Iberia: 136 mg/LNew Iberia 136Broussard: 159 mg/LBroussard 15923 mg/Lmg/L as calcium carbonate
Soft 0–60 mg/LModerately hard 61–120 mg/LHard 121–180 mg/LVery hard 181+ mg/L

At 23 mg/L, Baton Rouge is 79 mg/L below the typical Louisiana figure of 102. Of the 10 nearest cities we track, 1 has softer water and 9 have harder. The range nearby runs from 19 mg/L in Port Allen to 159 in Broussard.

What 23 mg/L means at home

Soap and shampoo lather with very little product. Kettles and showerheads stay mostly free of white crust.

Some people notice that soap feels slow to rinse off in soft water. That slippery feel is normal and harmless.

Hardness is not a health problem, and EPA sets no limit for it. It is a matter of scale and soap.

What to do about it

Nothing, as far as hardness goes. At 23 mg/L a softener would have almost nothing to remove.

Carbon filter

If the water tastes of chlorine, a pitcher or faucet carbon filter takes care of that. It does not change hardness.

EPA record for Baton Rouge's water system

Baton Rouge Water Company · PWSID LA1033005

No health-based violations since 2016

Serves about 596,844 people from groundwater.

Health-based
0
Monitoring or reporting
0
Open now
0

Health-based means a contaminant above its legal limit or a missed treatment step. Monitoring and reporting violations are late or missing tests and notices. Source: EPA ECHO, 2026Q3 export, violations with periods starting 2016 or later. Full EPA record.

Questions

Is Baton Rouge water hard?

No. It measures about 23 mg/L (1.4 grains per gallon), which the USGS classes as soft.

What is the water hardness in Baton Rouge in grains per gallon?

About 1.4 gpg. One grain per gallon equals 17.1 mg/L, so 23 mg/L divided by 17.1 gives 1.4.

Has the Baton Rouge water system had EPA violations?

EPA records show no health-based violations for Baton Rouge Water Company since 2016.

Nearby cities

All 32 cities in Louisiana

Hardness data: TapWaterData US Water Hardness (utility report, September 7, 2025), CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.