Fluoride in Cookeville, TN
Five utilities serve the Cookeville area, and four of them deliver the same treated water. That water is fluoridated — but at a level far below the CDC target, and this page shows the number plainly.
Cookeville’s water is fluoridated — but only just. The Cookeville Water Department adds fluoride to its Center Hill Lake water, and its 2026 report puts the level at 0.13 mg/L (range 0.07–0.13 mg/L) — far below the CDC recommended 0.7 mg/L, at roughly one-fifth of it, and far below both EPA standards.
How this page works: the level below comes from the Cookeville Water Department’s own published consumer confidence report, not from a marketing claim or a guess. Cookeville is a genuinely unusual case — a system that fluoridates, but at a small fraction of the recommended level — so we state both halves of that sentence wherever the number appears. New to the topic? Start with our full fluoride guide.
Water quality in Cookeville
Curious about your tap water? Tennessee Water Authority has the full Cookeville water quality guide — contaminant data, utility details, and filter recommendations.
Cookeville’s fluoride, by utility
Everything on this page traces back to these facts, from the Cookeville Water Department’s own 2026 Consumer Confidence Report (2025 data).
LEVEL Fluoride in Cookeville WD water
0.13 mg/L
Level detected in the 2026 report; range 0.07–0.13 mg/L across 2025 testing. That is far below the CDC recommended 0.7 mg/L — roughly one-fifth of it.
STATUS Fluoridated — adjusted, but low
The report lists fluoride’s source as “Water additive which promotes strong teeth” — Cookeville does add fluoride. The level it reaches is simply much lower than the CDC target.
UTILITY Five utilities serve the Cookeville area
Cookeville Water Dept. (TN0000133, ~47,464 served) treats the water. Algood (TN0000009, ~8,949), Bangham UD (TN0000038, ~7,866), and Double Springs UD (TN0000192, ~5,764) purchase Cookeville-treated water. West Overton UD (TN0000578, ~8,628) is independent, with its own source.
SOURCE Center Hill Lake
Cookeville’s water is surface water from Center Hill Lake (Mine Lick Creek), treated at the city’s own plant.
WEST OVERTON Independent — level not verified
West Overton Utility District treats its own surface water in Overton County and does not buy Cookeville water. We could not verify a fluoride figure from its own reporting, so this page publishes none for it — its customers should read its own water quality report.
How 0.13 mg/L compares
A number by itself doesn’t tell you much. Here is Cookeville’s level next to the three benchmarks that matter, each labeled for exactly what it is.
| Benchmark | Level | How Cookeville compares |
|---|---|---|
| Cookeville Water Dept., 2025 data | 0.13 mg/L | Range 0.07–0.13 mg/L. This is the water Algood, Bangham, and Double Springs customers also receive. |
| CDC recommended level | 0.7 mg/L | Cookeville runs far below this — at roughly one-fifth of the recommendation. We won’t round it up: 0.13 is 0.13. |
| EPA secondary (non-enforceable) standard | 2.0 mg/L | Cookeville is far below this guideline, which is aimed at preventing cosmetic effects like tooth discoloration. |
| EPA enforceable maximum contaminant level (MCL) | 4.0 mg/L | Cookeville is far below the legal limit. |
Corroboration: the Cookeville-Boatdock Road Utility District’s 2023 report — a neighboring system on Cookeville water — reported fluoride at 0.145 mg/L (2022 data), the same low range as the city’s own 2025 figure.
Putnam County is not one water system
The 0.13 mg/L figure describes Cookeville Water Department water — including the Algood, Bangham, and Double Springs taps it supplies. It does not describe West Overton Utility District, which treats its own water; we could not verify West Overton’s fluoride level, and this page won’t guess it. Baxter and other Putnam County addresses may sit on still other systems — check your water bill for your utility’s name before assuming this page’s number is your number.
Do you still need fluoride toothpaste?
Yes — and this is the point people most often get backwards.
Yes — in Cookeville, this matters more than in most fluoridated cities, because the water’s contribution is so small. Fluoridated drinking water is background exposure. Every glass of water bathes your teeth in a low level of fluoride, and that steady, low-level contact genuinely helps enamel resist acid. But it is a base layer, not the main event. Fluoride toothpaste delivers a much more concentrated dose directly onto the enamel, twice a day, right where decay starts.
So in Cookeville — fluoridated on paper, but at 0.13 mg/L — brush twice daily with fluoride toothpaste. If you have been skipping fluoride toothpaste because “it’s in the water anyway,” at this level the water was never carrying much of that load at all.
Fluoride and kids: the amounts matter
Young children swallow toothpaste, so the ADA’s guidance is about using the right small amount — not about avoiding fluoride toothpaste.
UNDER 3 A rice-grain smear
For children under age 3, use a smear of fluoride toothpaste about the size of a grain of rice. That tiny amount is deliberate — it protects the teeth while keeping what gets swallowed to a minimum.
AGES 3+ A pea-size amount
From age 3 up, a pea-size amount is enough. A ribbon of paste running the length of the brush is several times more than a child needs.
- Supervise brushing. An adult should be watching (and helping) until a child can reliably spit and rinse on their own.
- Teach spitting, not swallowing. Spit the toothpaste out when done; swallowing it as a habit is what the small amounts are designed to guard against.
- Don’t load the brush. More paste does not mean cleaner teeth — it mostly means more swallowed.
What about fluoride varnish at the dentist?
An in-office fluoride treatment or varnish is a much stronger, targeted dose than anything in tap water or toothpaste.
At Cookeville’s 0.13 mg/L — roughly one-fifth of the CDC recommended level — varnish is especially worth discussing for kids and for adults at higher cavity risk: people with recent cavities, dry mouth, braces, or exposed tooth roots. The water provides only a thin base layer here, and varnish puts a much stronger dose exactly where a clinician can see it’s needed.
If your cavity risk is low, it’s also reasonable to ask your dentist to walk you through your risk before a treatment — in either direction, the decision should be explained, not automatic.
On a private well? None of this applies automatically
Well water is not fluoridated by any utility
Nobody adjusts the fluoride in a private well — or tests it, unless you do. Well water may carry naturally occurring fluoride, almost none, or more than you’d expect, and taste won’t tell you. This matters across Putnam County’s rural edges, where a home can be minutes from a city main and not connected to it. Test your well water before assuming what’s in it, and tell your dentist you’re on well water so your fluoride plan is built on your actual water, not the city’s.
How to confirm Cookeville’s level yourself
Don’t take our word for it — the primary sources are public.
- Read the Cookeville Water Department’s current consumer confidence report. The 2026 report (2025 data) lists fluoride at 0.13 mg/L (range 0.07–0.13 mg/L). A new report comes out each year; the newest one is the one to trust.
- Check CDC’s My Water’s Fluoride. The CDC’s system-by-system tracker at nccd.cdc.gov/DOH_MWF lists fluoridation status and levels for community water systems, including Cookeville Water Department (TN0000133).
- Check whose name is on your bill. If your bill names West Overton UD, that district’s own report governs your tap — not this page’s 0.13 mg/L.
For the bigger picture — how fluoridation works, the arguments on both sides, and how to think about filters — see our full fluoride guide.
Questions people actually ask
Asked the way people actually ask them — answered from the sources cited below.
Yes — for most of the Cookeville area. The Cookeville Water Department adds fluoride to the water it treats from Center Hill Lake, and Algood, Bangham Utility District, and Double Springs Utility District all purchase that same treated water. The exception is West Overton Utility District, which treats its own water independently; we could not verify its fluoride level.
Low. The Cookeville Water Department's 2026 Consumer Confidence Report (2025 data) puts fluoride at 0.13 mg/L, with a range of 0.07–0.13 mg/L across the year. A neighboring system on Cookeville water, Cookeville-Boatdock Road Utility District, reported 0.145 mg/L in its 2023 report — the same low range.
It is low — plainly. The CDC recommended level is 0.7 mg/L, so Cookeville's 0.13 mg/L is roughly one-fifth of the recommendation. It is nowhere near the EPA limits — the enforceable maximum contaminant level (MCL) is 4.0 mg/L and the secondary (non-enforceable) standard is 2.0 mg/L. Cookeville fluoridates, but at this level the water contributes only a small part of the fluoride your teeth can use; fluoride toothpaste does most of the work.
It depends. If your bill names Algood, Bangham Utility District, or Double Springs Utility District, yes — those districts purchase Cookeville-treated water, so the city's 0.13 mg/L describes your tap too. If your bill names West Overton Utility District, no — West Overton treats its own surface water, and we could not verify its fluoride level. Check your bill, and read the utility named on it.
Yes. Fluoridated drinking water is background exposure — it bathes your teeth in a low level of fluoride through the day, which helps, but it does not replace the concentrated fluoride that toothpaste delivers directly to the enamel while you brush. Brush twice a day with fluoride toothpaste, and treat the water as a helpful base layer, not the whole defense.
The ADA's guidance: for children under age 3, use a smear of fluoride toothpaste about the size of a grain of rice. For ages 3 and up, a pea-size amount is enough. Supervise brushing, teach your child to spit the toothpaste out rather than swallow it, and remember that more paste on the brush does not mean cleaner teeth — the small amounts are deliberate, because young kids swallow some no matter what.
For many people, yes — arguably more so here than in a city at the CDC target. Cookeville's water at 0.13 mg/L provides only a thin base layer, about one-fifth of the recommended level. An in-office fluoride treatment or varnish puts a much stronger dose directly on the teeth, and it remains worthwhile for kids and for adults at higher cavity risk — people with recent cavities, dry mouth, braces, or exposed roots. If your cavity risk is low, ask your dentist to explain your risk either way rather than accepting or skipping it on autopilot.
No utility fluoridates private well water — nobody adjusts it at all. Well water can contain some naturally occurring fluoride, a lot, or almost none, and you cannot tell by taste. If your home is on a well in Putnam County, have the water tested before assuming anything about its fluoride level, and tell your dentist you are on well water so your fluoride plan reflects it.
Start with the Cookeville Water Department's current consumer confidence report — the 2026 report (2025 data) is linked in the sources below, and fluoride is listed with its level and range. You can also check CDC's My Water's Fluoride, which tracks fluoridation status and levels by water system. If your bill names West Overton Utility District instead, that district's report is the one that governs your tap.
Sources & method
- City of Cookeville, Department of Water Quality Control, 2026 Consumer Confidence Report (2025 data) — fluoride 0.13 mg/L, range 0.07–0.13 mg/L, source “Water additive which promotes strong teeth”; source water Center Hill Lake (Mine Lick Creek); system TN0000133; cookeville-tn.gov/DocumentCenter/View/5952/2026-Cookeville-CCR.
- Cookeville-Boatdock Road Utility District, CCR 2023 — corroborating fluoride level of 0.145 mg/L (2022 data) on Cookeville-supplied water; cbdud.com CCR 2023 (PDF).
- Tennessee Water Authority, Cookeville water quality guide — five-utility structure, PWSIDs, purchasing relationships, and served populations; tennesseewaterauthority.com/cookeville-tn-water-quality-guide.
- EWG Tap Water Database (cross-check) — fluoride is listed among the contaminants detected for Cookeville Water Department (TN0000133); no numeric EWG value was retrievable, so no EWG figure is published here — the utility’s own report is the source.
- CDC — recommended fluoride level of 0.7 mg/L for community water systems; fluoridation status and levels are also tracked in CDC’s My Water’s Fluoride.
- EPA — enforceable maximum contaminant level (MCL) of 4.0 mg/L and secondary (non-enforceable) standard of 2.0 mg/L for fluoride in drinking water.
- American Dental Association (ADA) — children’s toothpaste amounts: a rice-grain smear under age 3, a pea-size amount at ages 3 and up, with supervised brushing.
Method in one line: Cookeville’s level comes from the city’s own published 2026 Consumer Confidence Report (2025 data) and is corroborated by a neighboring purchasing system’s report in the same low range. West Overton Utility District’s level is published as unverified rather than estimated. We never name, rank, or recommend private dental practices.