Water hardness by state
How hard is the water in New Jersey?
Tap water in New Jersey averages 4 grains per gallon (69 ppm calcium carbonate). That number determines how fast limescale coats your water heater, shower glass and appliances.
Com base em 523 medições de 345 pontos de monitoramento, 2018-01 → 2023-09.
Dureza da água por condado — New Jersey
Medianas das medições registradas em cada área. A dureza varia muito mais dentro de um estado do que entre estados vizinhos — é daí que vem o seu valor real.
| Condado | gpg | mg/L | Intervalo (mg/L) | Classificação |
|---|---|---|---|---|
| Camden County | 4.7 | 81 | 10–175 | Soft water |
| Cape May County | 4.3 | 74 | 15–126 | Soft water |
| Salem County | 6.9 | 118 | 10–352 | Soft water |
| Burlington County | 1.8 | 31 | 1–155 | Soft water |
| Cumberland County | 3.2 | 55 | 5–273 | Soft water |
| Monmouth County | 3.8 | 65 | 19–170 | Soft water |
| Gloucester County | 2.5 | 43 | 13–83 | Soft water |
| Ocean County | 1.3 | 23 | 4–72 | Soft water |
| Atlantic County | 0.9 | 16 | 1–44 | Soft water |
| Middlesex County | 5 | 86 | 24–286 | Soft water |
| Mercer County | 8.4 | 144 | 49–232 | Soft water |
| Warren County | 15.6 | 267 | 33–347 | Hard water |
O intervalo corresponde aos percentis 10-90 das medições locais. Áreas com menos de cinco medições são omitidas em vez de estimadas.
What 4 gpg means in New Jersey
Soft water like this leaves little to no scale. Soap lathers easily, appliances stay clean and your water heater keeps its efficiency. Protection is optional — mostly useful if your utility occasionally blends in harder sources.
What it does to your home
Water heater: even a thin layer of scale insulates the heating element and drives energy use up.
Appliances: dishwashers, washing machines and coffee makers scale up and fail years early.
Fixtures and skin: white spots on faucets and glass, dry skin and dull hair after every shower.
Como este valor foi obtido
Median of the site-level medians at 345 groundwater monitoring sites (wells and springs — the sources most US public systems draw from) in the USGS National Water Information System (523 individual measurements, 2018-01 → 2023-09). Each site is collapsed to one value first so that a heavily sampled location cannot skew the state figure; the range shown is the 10th-90th percentile across sites. This describes the raw water resource, not a specific municipal tap after treatment.
Water Quality Portal — USGS National Water Information System (NWIS), characteristic "Hardness, Ca, Mg"Statewide average — hardness varies by utility and season. Always verify with your local water quality report.
Frequently asked questions — New Jersey
Is 4 gpg considered hard water?
On the US scale, 0–3.5 gpg is soft, 3.5–7 gpg moderately hard, 7–10.5 gpg hard and above 10.5 gpg very hard. At 4 gpg (69 ppm), water in New Jersey is classified as Soft water.
Does New Jersey have a limescale problem?
Water in New Jersey averages 4 gpg — Soft water. The harder the water, the faster calcium carbonate deposits build up in water heaters, appliances and pipes. Below 3.5 gpg the risk is minimal; above 7 gpg scale becomes a running cost.
How do I find the exact water hardness at my address in New Jersey?
Check your utility's annual water quality report (Consumer Confidence Report) or your water bill, or use our free interactive hardness map. Hardness can vary widely between neighboring utilities in New Jersey.
Do I need a salt-based water softener at 4 gpg?
Not necessarily. Salt softeners add sodium to your water and need constant refills. LIMPEO treats limescale with an electromagnetic field — no salt, no chemicals, no maintenance — and keeps healthy minerals in your drinking water.