How hard is the water in Pushmataha County, OK?
1.2 grains per gallon
You do not need a softener here.
The median hardness measured in Pushmataha County, OK is 20 mg/L as calcium carbonate, which is 1.2 gpg. That is soft on the USGS scale. It comes from 662 samples at 39 sites between 1993 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 0.7 and 1.5 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 1.2 gpg the most a softener would fix is the odd water spot. If a salesperson in Pushmataha 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 0.4 to 3.9 gpg
The softest single sample on record in Pushmataha County was 6.2 mg/L and the hardest 66.5 mg/L, an 11-fold gap. The top quarter of sites read above 1.5 gpg and the bottom quarter below 0.7 gpg.
Pushmataha County against the rest of Oklahoma
Among the 77 Oklahoma counties with data, Pushmataha County is number 76 of 77 counting from the hardest. Across the whole country it is harder than 8% of counties.
Softest in Oklahoma: McCurtain County at 0.8 gpg. Hardest: Greer County at 125 gpg. Closest to Pushmataha County: McCurtain County (0.8), Atoka County (2.2), Le Flore County (2.6).