Water hardness in Hoboken
4.7 gpg moderately hard
Tap water in Hoboken is moderately hard: 4.7 gpg (81 mg/L · 4.5 °dH · 8.1 °fH).
Source: Veolia Hoboken Water Services, Consumer Confidence Report 2025 (2025 data) (2025) · data checked 2026-10-23
Range across supply zones: 64–98 mg/L.
Hoboken's water comes from the Jersey City system, which treats water from the Boonton Reservoir on the Rockaway River, and Veolia operates it. Highlands reservoir water is moderately hard at 81 mg/L CaCO₃ (64–98 mg/L). Some scale in kettles, but a softener is optional.
USGS classes: soft 0–60, moderately hard 61–120, hard 121–180, very hard >180 mg/L.
Water data
| Total hardness | 4.7 gpg |
|---|---|
| Utility | Hoboken Water (operated by Veolia Water; city FAQ names Veolia as report preparer) |
How Hoboken compares
- Tap water in Hoboken is 48 % softer than the median of the 1372 cities we track in the United States (9.1 gpg).
- By hardness it ranks 1103 of 1372 in the United States (1 = hardest); 20 % of these cities have softer water.
- In New Jersey it is number 30 of 34 cities; the regional median is 6.4 gpg.
- Nearest city with clearly softer water: New York, 4 km away (1.9 gpg).
- Nearest city with clearly harder water: West New York, 5 km away (9.1 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 Hoboken
| Brand | Setting for this water |
|---|---|
| Bosch | H00 |
| Miele | 5 °dH |
| AEG / Electrolux | 2 |
| Beko | 1st |
| 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 Hoboken water hard or soft?
It is moderately hard: 81 mg/L as CaCO₃ (4.7 gpg, 4.5 °dH). The usual bands are soft < 60, moderately hard 60–120, hard 120–180 and very hard > 180 mg/L.
Is tap water in Hoboken 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 Hoboken water?
4.7 gpg, equal to 4.5 °dH, 8.1 °fH or 81 mg/L calcium carbonate.
What dishwasher salt setting should I use in Hoboken?
For 81 mg/L (4.5 °dH) check your manufacturer's table: level 2–3.
Do I need a water softener in Hoboken?
Not essential; a scale inhibitor protects the heater cheaply.
Source
Source: Veolia Hoboken Water Services, Consumer Confidence Report 2025 (2025 data) (2025). Method: computed from supplier's calcium and magnesium. Veolia Hoboken Water Services, Consumer Confidence Report 2025 (2025 data) · Outdated figure? Tell us