Water hardness in Palm Coast
5.8 gpg moderately hard
Tap water in Palm Coast is moderately hard: 5.8 gpg (100 mg/L · 5.6 °dH · 10 °fH).
Source: City of Palm Coast 2025 Annual Water Report (2025) · data checked 2026-10-19
The City of Palm Coast's 2025 annual water report states an average total hardness of 100 ppm, or 5.8 grains per gallon. We read ppm as mg/L as CaCO3. It is a single system average with no range. That is moderately hard water, and scale builds slowly. A scale inhibitor is often enough for the water heater.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 5.8 gpg |
|---|---|
| Utility | City of Palm Coast Utility Department |
How Palm Coast compares
- Tap water in Palm Coast is 36 % softer than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 1015 of 1372 in the United States (1 = hardest); 26 % of these cities have softer water.
- In Florida it is number 14 of 17 cities; the regional median is 8.2 gpg.
- Nearest city with clearly harder water: Apopka, 103 km away (9.3 gpg).
Ranking of the hardest and softest water in the United States →
What it means at home
- Visible kettle scale every few weeks; vinegar or citric acid is enough.
- Water heater and washing machine: some long-term scale; a scale inhibitor slows it.
- Dishwasher: medium salt setting.
- Softener optional; pays off mainly with a gas boiler or tankless heater.
How much salt will you use for softening?
Optional. A scale inhibitor or a small softener protects the heater; soap savings are modest.
Descale a coffee machine or kettle about every 3 months (typical manufacturer guidance for this hardness).
Estimates for planning, not a quote. Check your appliance manual for exact settings.
Dishwasher setting in Palm Coast
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 6 °dH |
| AEG / Electrolux | 2 |
| Beko | 2nd |
| Hoover | S1 |
| LG | H1 |
From each brand's manual for the model family named in the source; your model may differ, so check its manual. All brands and how to change the setting →
FAQ
Is Palm Coast water hard or soft?
It is moderately hard: 100 mg/L as CaCO₃ (5.8 gpg, 5.6 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Palm Coast safe to drink?
Hardness is not a health issue; it is about limescale, taste and appliances. Mains water must meet national drinking-water standards. USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
How many grains per gallon is Palm Coast water?
5.8 gpg, equal to 5.6 °dH, 10 °fH or 100 mg/L calcium carbonate.
What dishwasher salt setting should I use in Palm Coast?
For 100 mg/L (5.6 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Palm Coast?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: City of Palm Coast 2025 Annual Water Report (2025). Method: figure published by the water supplier. City of Palm Coast 2025 Annual Water Report · Outdated figure? Tell us