How hard is the water in Washington County, AL?

0.2 grains per gallon

You do not need a softener here.

The median hardness measured in Washington County, AL is 4 mg/L as calcium carbonate, which is 0.2 gpg. That is soft on the USGS scale. It comes from 101 samples at 14 sites between 2001 and 2025, drawn from every sampling site in the county, wells and surface water together.

How much it varies here

Half the sites came in between 0.2 and 0.4 gpg. The whole middle of that range gives the same answer, so a test of your own tap is unlikely to change it. Confidence in the county figure: high (how it is measured).

What to do next

You can skip the softener. At 0.2 gpg the most a softener would fix is the odd water spot. If a salesperson in Washington County says otherwise, ask to see their reading in grains per gallon and compare it with this one.

More on when a softener is not worth it.

From 0.2 to 3.5 gpg

The softest single sample on record in Washington County was 2.9 mg/L and the hardest 59.2 mg/L, a 20-fold gap. The top quarter of sites read above 0.4 gpg and the bottom quarter below 0.2 gpg.

Washington County against the rest of Alabama

Among the 67 Alabama counties with data, Washington County is the softest. Across the whole country it is harder than 0% of counties.

Hardest: Walker County at 13.1 gpg. Closest to Washington County: Lamar County (0.4), Escambia County (0.5), Mobile County (0.5).