Water hardness in Tennessee

Typical Tennessee tap water

89mg/L

5.2gpg

Moderately hard

Population-weighted middle value across 99 Tennessee cities in the dataset

People with hard or very hard water: 14%
Hardest: Morristown 260
Softest: Jackson 19

We have hardness numbers for 44 Tennessee cities; 9 of them are county estimates rather than utility figures. Each city page adds the water system's EPA violation record and a softener size for a typical household.

Every Tennessee city on the hardness scale

Dot size follows population. Tap a dot for the city page.

9Soft

26Moderately hard

5Hard

4Very hard

Hardest water in Tennessee

Softest water in Tennessee

All cities in Tennessee

City	mg/L	gpg	Class	Data	EPA health violations
Nashville	89	5.2	Moderately hard	Utility report	0
Memphis	40	2.4	Soft	Utility report	0
Knoxville	91	5.3	Moderately hard	Utility report	0
Chattanooga	70	4.1	Moderately hard	Utility report	0
Clarksville	71	4.1	Moderately hard	Utility report	0
Murfreesboro	101	5.9	Moderately hard	Utility report	1
Franklin	98	5.8	Moderately hard	Utility report	7
Johnson City	60	3.5	Soft	Utility report	0
Jackson	19	1.1	Soft	County estimate	0
Hendersonville	89	5.2	Moderately hard	Utility report	0
Smyrna	200	11.7	Very hard	County estimate	0
Spring Hill	138	8.1	Hard	Utility report	0
Kingsport	106	6.2	Moderately hard	Utility report	0
Bartlett	36	2.1	Soft	Utility report	0
Gallatin	82	4.8	Moderately hard	Utility report	0
Lebanon	78	4.5	Moderately hard	Utility report	0
Collierville	51	3.0	Soft	County estimate	0
Cleveland	150	8.8	Hard	County estimate	0
Columbia	121	7.1	Hard	Utility report	0
Brentwood	89	5.2	Moderately hard	Utility report	0
Mount Juliet	89	5.2	Moderately hard	Utility report	0
La Vergne	200	11.7	Very hard	County estimate	3
Germantown	63	3.7	Moderately hard	Utility report	0
Cookeville	56	3.3	Soft	Utility report	1
Oak Ridge	132	7.7	Hard	Utility report	1
Morristown	260	15.2	Very hard	County estimate	0
Maryville	42	2.4	Soft	Utility report	0
Bristol	88	5.2	Moderately hard	Utility report	0
Shelbyville	130	7.6	Hard	County estimate	0
East Ridge	70	4.1	Moderately hard	Utility report	0
Tullahoma	81	4.7	Moderately hard	County estimate	0
Springfield	199	11.6	Very hard	County estimate	0
Nolensville	62	3.6	Moderately hard	Utility report	0
Alcoa	37	2.2	Soft	Utility report	1
Powell	99	5.8	Moderately hard	Utility report	0
Red Bank	70	4.1	Moderately hard	Utility report	0
Goodlettsville	89	5.2	Moderately hard	Utility report	0
Bloomingdale	106	6.2	Moderately hard	Utility report	1
Signal Mountain	69	4.0	Moderately hard	Utility report	0
Harrison	71	4.1	Moderately hard	Utility report	0
Green Hill	89	5.2	Moderately hard	Utility report	0
Millersville	89	5.2	Moderately hard	Utility report	0
Eagleton Village	46	2.7	Soft	Utility report	0
Ashland City	89	5.2	Moderately hard	Utility report	0

Questions

Is Tennessee water hard?

The typical Tennessee resident gets about 89 mg/L (5.2 gpg), which is moderately hard. About 14% of people in the cities we track have hard or very hard water.

Which city in Tennessee has the hardest water?

Among 44 cities with pages here, Morristown is highest at 260 mg/L.

Which city in Tennessee has the softest water?

Jackson, at 19 mg/L.

Other states

Hardness data: TapWaterData US Water Hardness, CC BY 4.0. Population: US Census Bureau. Violations: EPA ECHO. How we use them.