Soil data is the most overlooked part of farmland due diligence. Not because operators don't know it matters, but because pulling quality soil data has historically meant either paying a professional hundreds or thousands of dollars, or spending hours hunting through fragmented government databases hoping the data makes sense once you find it.
That gap is closing. With Land id, you can pull a comprehensive soil report on any parcel in the country in minutes, complete with soil type, productivity ratings, acreage breakdowns, and exportable data you can use in a report, a pitch deck, or a land deal.
This guide covers what soil data actually tells you, which numbers matter most, and how to build it into your due diligence workflow.
The Two Tools You Need to Know
There are two distinct soil tools in Land id, and knowing which to use when matters.
Soil Overlay
The soil overlay is available on all Land id plans. Turn it on and you get an instant visual breakdown of soil types across any parcel, color-coded and layered directly on your map. Click any polygon and you'll see:
- Soil classification
- Irrigated and non-irrigated capability class and subclass
- Summary of what that soil can support
It's your first-pass reconnaissance. Fast, visual, always on.
Soil Report
The soil report is a Pro and Pro Unlimited feature. It goes deeper, with exportable data on soil composition, acreage by type, capability classifications, and the productivity indexes that commercial operators actually use to value land. If the Overlay is your initial scan, the Report is your documentation.
Both pull from the SSURGO database, the same foundational data source used by the USDA Natural Resources Conservation Service and USDA's Web Soil Survey. You're working with the same dataset the industry already trusts.
The Numbers That Drive Farmland Decisions
If you're buying or farming land commercially, you're evaluating it based on what it can produce. That starts with three specific metrics.
NCCPI: National Commodity Crop Productivity Index
NCCPI is the national benchmark for how well a soil can produce commodity crops like corn and soybeans. It runs from 0 to 1, with higher values indicating more productive ground, the closest thing the industry has to a universal productivity score, comparable across state lines and across deals.
On a row crop parcel, NCCPI above 0.6 is solid ground. Below 0.4, you're either buying at a discount for a reason or you're paying too much.
WAPI: Weighted Average Productivity Index
WAPI takes the NCCPI values for every soil type on a parcel and weights them by acreage to give you a single composite score for the whole property. Instead of reading through ten different soil polygons and doing the math yourself, WAPI hands you the bottom line.
WAPI is the number you put next to the price per acre. It's how you compare two parcels in the same county without getting lost in the polygon data.
State-Specific Productivity Indexes
NCCPI is a reliable national benchmark, but experienced operators in row crop country work with state-specific indexes that go deeper for their region. Iowa's CSR2 (Corn Suitability Rating 2) is practically table stakes for any farmland transaction in the state. If you're buying Iowa ground and you don't know the CSR2, you're not doing full due diligence. Other states have their own equivalents.
Land id surfaces these productivity indexes alongside NCCPI and WAPI in the soil report. The specific state indexes available will depend on your region. Explore the report for the parcel you're evaluating to see what applies.
If the parcel is in Iowa, find the CSR2 before anything else. That number will tell you more about what the ground is worth than the listing description ever will.
Reading the Map: What the Soil Report Actually Contains
A Soil Report is a structured read on what a piece of ground can do.
Soil Type & Classification
The soil report lists every type present, its classification, and its capability class, the standard USDA scale (Class I through VIII) that rates land from highly productive cropland down to land unsuitable for cultivation. Class I and II soils are what commodity farmers are after. Class IV and below starts to tell a different story about what the land is actually for.
The number that matters is capability class distribution. A parcel that's 70% Class I and II soils is a different asset than one that's 70% Class IV, even if they're the same acreage and the same county.
Acreage by Soil Type
The report breaks down the exact acreage covered by each soil type. This is what turns a map into a usable data set. Knowing the distribution, not just what soils are present but how many acres each one covers, is the difference between a complete read and an impression.
Watch for large acreage blocks of low-capability soil hiding inside a parcel that looks strong on the soil overlay. The polygon view can be misleading at a glance; the acreage numbers don't lie.
Capability & Land Use
Beyond productivity ratings, the report includes capability data on what each soil type supports: crop farming at various intensities, grazing, forestry, and wildlife use. For operators running mixed-use operations or evaluating parcels for multiple revenue streams, this is a fast way to understand the full range of what the land can support beyond row crops.
FSA Fields
Soil data tells you what the ground can produce. FSA fields tell you where the farming actually happens.
FSA fields, also called CLU units or Common Land Units, are the Farm Service Agency's official delineation of agricultural field boundaries. They're how crop history, yield data, and farm program payments are tracked at the federal level. For commercial operators in Iowa, Minnesota, Illinois, and northern Missouri, FSA CLUs are the standard reference layer. They define the farming unit, independent of ownership boundaries.
Land id lets you visualize FSA field boundaries alongside your soil overlay, putting both the productive ground and the farming unit boundaries in one view.
The question to answer is whether the high-productivity soils and the FSA field boundaries actually line up. Tillable acreage claims in listings don't always match the CLU data. The map will show you the discrepancy if there is one.
For the Rancher: A Different Read on the Same Data
Commercial crop farming is about yield per acre. For ranchers, particularly in the Southeast and West, the soil question is different but no less important.
Soil data for ranching use cases is primarily about capability: grazing intensity (limited, moderate, or intense), timber potential, and land classification for wildlife management. The USDA capability classes in the Soil Report tell you quickly whether ground can support intense grazing or is better suited to low-impact use. For timber, soil type and classification speak directly to tree growth rates and harvest potential, real variables when you're trying to understand the long-term revenue profile of a ranch property.
Check capability class and grazing ratings against what the land is listed as supporting. If a ranch is marketed as heavy grazing country but the soils tell a different story, that's a negotiating data point.
The Deeper Workflow: Land id + USDA Web Soil Survey
Land id's soil report is built for deal-level due diligence. Fast, exportable, shareable. For operators who need to go further, there's a workflow worth knowing.
From your Land id soil report:
- Download a shapefile of the property's soil data.
- Upload that shapefile to USDA's Web Soil Survey (WSS).
- Run the full suite of NRCS analysis on your exact parcel boundary, including drainage class, leaching potential, flood frequency, and more.
Land id gets you to the parcel fast. WSS takes you as deep as the SSURGO database goes.
Use the Land id report for the deal. WSS is for when you need the kind of technical depth that goes into a lender package or a formal land valuation.
The Operators Who Know What They're Buying
There are two types of people evaluating farmland: those who look at what the listing says, and those who pull the soil data and check.
NCCPI. WAPI. CSR2. Acreage by capability class. FSA CLU boundaries. These are the metrics that separate a well-priced piece of ground from an expensive mistake.
Land id puts that data in front of you, on any parcel, before you ever schedule a site visit.
Want to run a Soil Report on a parcel you're evaluating? Start a free 7-day trial of Land id Pro and pull your first report in minutes. Already using Land id? The Soil Report help doc and Soil Overlay help doc walk through everything the platform surfaces.
A note on data currency: Land id's soil data is sourced from the SSURGO database maintained by the USDA NRCS. There may be a lag between when local surveys are updated and when those updates are reflected in SSURGO. For the most current local data, cross-reference with your regional NRCS office.
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