Is nitrate a problem in Tennessee drinking water?

Nitrate was detected in Tennessee water systems but within the EPA limit of 10 mg/L (as nitrogen). Check the ZIP code table on this page for area-specific data.

How widespread is nitrate in Tennessee water?

Nitrate was detected in 2 ZIP codes across Tennessee. No ZIPs exceeded the EPA limit. See the table above for details.

Nitrate · Tennessee

Nitrate in Tennessee Drinking Water — 2 ZIPs Tested

EPA data analysis for nitrate in Tennessee drinking water systems

ZipCheckup tracks Nitrate in Tennessee drinking water: 2 ZIP codes with detected levels on record. No ZIP codes exceed the EPA limit on record. Nitrate carries a high health-risk designation.

ZIPs with Detections

ZIPs with Violations

10 mg/L (as nitrogen)

EPA Limit

High

Health Risk

Reverse Osmosis or Ion Exchange

Best Filter Method

Nitrate Contamination in Tennessee

ZipCheckup analyzed drinking water data across 787 ZIP codes in Tennessee for nitrate contamination. 2 ZIP codes have reported nitrate detections, and 0 have EPA violations on record.

EPA Standard for Nitrate

The EPA maximum contaminant level (MCL) for nitrate is 10 mg/L (as nitrogen), governed by the National Primary Drinking Water Regulations. Water systems that exceed this limit must take corrective action and notify consumers.

Worst ZIP Codes for Nitrate in Tennessee

These ZIP codes reported the highest nitrate levels in Tennessee based on CCR reports and EPA data:

Lowest Nitrate Levels in Tennessee

These ZIP codes had the lowest reported nitrate detections in Tennessee:

Health Effects of Nitrate

How to Remove Nitrate From Drinking Water

The most effective treatment for nitrate removal is Reverse Osmosis or Ion Exchange. Look for filters certified under NSF 53 / NSF 58 standards.

Check Your ZIP Code

Use the ZipCheckup water quality search to see nitrate data for your specific water system in Tennessee.

Worst ZIP Codes for Nitrate in Tennessee

Ranked by highest nitrate detection level.

Rank	ZIP Code	City	Level Detected	EPA Limit	Status
1	37132	Murfreesboro	12500 ppb	10000 ppb	Exceeds
2	37172	Springfield	5100 ppb	10000 ppb	Within Limit

Lowest Nitrate Levels in Tennessee

ZIP Code	City	Level Detected
37172	Springfield	5100 ppb
37132	Murfreesboro	12500 ppb

Cities with Nitrate Data in Tennessee

10 cities in Tennessee have nitrate testing data available.

Burns Charlotte Dickson La Vergne Mitchellville Murfreesboro Nolensville Portland Smyrna Springfield

Tennessee Water Quality Overview: See statewide water quality rankings on the Tennessee water quality page.

Learn more about Nitrate: Read the full guide on Nitrate in drinking water.

Home → Contaminants → Nitrate → Tennessee

How to cite this page

APA

ZipCheckup. (2026). Nitrate in Tennessee Drinking Water — 2 ZIPs Tested. https://zipcheckup.com/contaminants/nitrates/tennessee/

BibTeX

@misc{zipcheckup-contaminants-nitrates-tennessee,
  author = {{ZipCheckup}},
  title  = {{Nitrate in Tennessee Drinking Water — 2 ZIPs Tested}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/nitrates/tennessee/}
}

Data as of July 2026.