How hard is the water in Tyler County, TX?
2.3 grains per gallon
You do not need a softener here.
The median hardness measured in Tyler County, TX is 40 mg/L as calcium carbonate, which is 2.3 gpg. That is soft on the USGS scale. It comes from 146 samples at 5 sites between 1990 and 2017, drawn from every sampling site in the county, wells and surface water together.
How much it varies here
Half the sites came in between 1.5 and 3.1 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: medium (how it is measured).
What to do next
You can skip the softener. At 2.3 gpg the most a softener would fix is the odd water spot. If a salesperson in Tyler 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 0.5 to 6.7 gpg
The softest single sample on record in Tyler County was 8.1 mg/L and the hardest 115 mg/L, a 14-fold gap. The top quarter of sites read above 3.1 gpg and the bottom quarter below 1.5 gpg.
Wells 2.3 gpg, rivers and lakes 2.3 gpg
4 groundwater samples from 4 wells put the median at 39.1 mg/L. 142 surface samples from 1 sites put it at 39.5 mg/L. In Tyler County the rivers and lakes come out 0.0 gpg harder. Here the surface water reads harder than the wells, which often points to streams fed by limestone springs or irrigation return flow. The two sources are close, so the county figure should hold whichever one your tap is on.
Tyler County against the rest of Texas
Among the 217 Texas counties with data, Tyler County is number 199 of 217 counting from the hardest. Across the whole country it is harder than 18% of counties.
Softest in Texas: Nacogdoches County at 0.3 gpg. Hardest: Ward County at 218.5 gpg. Closest to Tyler County: Cherokee County (2.4), Nueces County (2.4), Presidio County (2.4).