About USSoilMap
Finding out what soil is under your home shouldn't take a tutorial. USSoilMap lets you type an address and see USDA's own soil survey data for that spot, with the source and date for every value.
Why this site exists
The official way to look up US soils is USDA's Web Soil Survey. It serves USDA's full soil survey, with soil maps, properties and use ratings for any area you choose, and it is built for soil professionals: you draw an area of interest, move between tabs and assemble a report.
Most people just want to know what they are standing on and what it means for a garden, a lawn or a wet yard. USSoilMap does that one job: it takes a single point, asks USDA's soil database what is mapped there, and shows the answer in plain language with the numbers and their sources in view.
How we keep it accurate
Every value comes from a published source: USDA's Soil Survey Geographic Database (SSURGO) and the US Census Bureau for the lookups and maps, and USDA guides and university extension services for the gardening and soil-science pages. We show USDA's typical value with its low–high range, we label non-soil areas such as Urban land instead of guessing, and a failed lookup is shown as a failure, never as "no data".
Each result names the soil survey it came from and when that survey's data was last updated. The methodology page explains every step and links every source.
If a result looks wrong, email the link from the result's "Copy link" button to info@ussoilmap.com and we will check it against the USDA source.
How this site is made
The pages are written with AI assistance (Anthropic's Claude) under Marko Visic's direction. The AI doesn't supply the facts: every figure is computed from USDA's soil survey data by the methods on the methodology page or comes from the published source cited beside it, and each claim is checked against that source before the page goes live. Automated tests check many of the computed figures against the data before each release. Marko is responsible for what the site publishes.
Who builds it
USSoilMap is built and maintained by Marko Visic, who holds an MPharm and a BSc in Physics from the University of Ljubljana. He builds data tools and maps from public government datasets.
He is not a soil scientist, and the site does not pretend otherwise. The soil descriptions and measurements come from the soil scientists of the National Cooperative Soil Survey; the work here is finding the right record for your point and presenting it accurately.
Who runs it
USSoilMap is operated by Moving Data Systems d.o.o., Smolnik 62, 2342 Ruse, Slovenia. Contact us at info@ussoilmap.com, or find Marko on LinkedIn.
Last updated November 13, 2026.