SoilPhCheck

What is the soil pH where I live?

Type your county to see the typical topsoil pH there, then pick what you are growing to see whether it needs lime, sulfur, or nothing at all.

3,131 counties, read from the USDA NRCS soil survey (SSURGO), top layer of mineral soil.

What are you growing?

Plant
Each bar is a slice of 3,131 US counties by typical topsoil pH. The shaded band is the range your plant wants.