How hard is the water in Hood River County, OR?

2.5 grains per gallon

You do not need a softener here.

The median hardness measured in Hood River County, OR is 43 mg/L as calcium carbonate, which is 2.5 gpg. That is soft on the USGS scale. It comes from 20 samples at 9 sites between 1995 and 2026, drawn from groundwater wells, which is what most taps and private wells in the county draw on.

How much it varies here

Half the sites came in between 1.4 and 4.5 gpg. That spread crosses a decision line, so some homes here land on a different answer. A $10 test strip on your own tap settles it. Confidence in the county figure: medium (how it is measured).

What to do next

You can skip the softener. At 2.5 gpg the most a softener would fix is the odd water spot. If a salesperson in Hood River County says otherwise, ask to see their reading in grains per gallon and compare it with this one. Because Hood River County straddles a decision line, check your own tap with a $10 test strip before you spend anything.

More on when a softener is not worth it.

From 0.6 to 5.3 gpg

The softest single sample on record in Hood River County was 9.7 mg/L and the hardest 91 mg/L, a 9-fold gap. The top quarter of sites read above 4.5 gpg and the bottom quarter below 1.4 gpg.

Wells 2.5 gpg, rivers and lakes 2.2 gpg

20 groundwater samples from 9 wells put the median at 43 mg/L. 469 surface samples from 75 sites put it at 37.6 mg/L. In Hood River County the wells come out 0.3 gpg harder. Groundwater sits in contact with rock for years and picks up calcium and magnesium as it goes, so wells usually read harder. The two sources are close, so the county figure should hold whichever one your tap is on.

Hood River County against the rest of Oregon

Among the 36 Oregon counties with data, Hood River County is number 30 of 36 counting from the hardest. Across the whole country it is harder than 19% of counties.

Softest in Oregon: Columbia County at 1.4 gpg. Hardest: Malheur County at 17.8 gpg. Closest to Hood River County: Deschutes County (2.5), Lincoln County (2.5), Curry County (2.4).