Mississippi: Soil labs by state

Mississippi residents can use the Mississippi State University Extension Service soil testing program for lawn, garden, and landscape soil fertility recommendations. MSU Extension’s current official pages say homeowners register samples online, then either mail them directly to the MSU soil testing lab or drop them at a local county Extension office.

Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.

Official resources in Mississippi

MSU Extension Soil Testing: Submitting Samples for Soil Testing

Official homeowner instructions for registering a soil sample, paying, and either mailing it or taking it to a local Extension office.

MSU Extension Soil Testing Fee Schedule

Official price list for soil and plant analysis services from the Mississippi State University Extension Service.

MSU Extension Order a Soil Test

Official MSU Extension sample-ordering page where residents enter contact information, county, and crop codes.

MSU Extension County Offices

Official county office finder for Mississippi residents who want their local Extension office contact information.

Key facts for Mississippi

MSU Extension says homeowners must register soil samples online before submission. (https://extension.msstate.edu/publications/submitting-samples-for-soil-testing)
After registering, residents can take samples to a local Extension office or mail them directly to the MSU soil testing lab. (https://extension.msstate.edu/publications/submitting-samples-for-soil-testing)
MSU Extension says county Extension offices will mail submitted soil samples to the lab for free. (https://extension.msstate.edu/publications/submitting-samples-for-soil-testing)
The fee schedule lists Soil Analysis at $10, effective January 1, 2023. (https://extension.msstate.edu/agriculture/soils/soil-testing/fee-schedule)
The soil analysis includes pH, lime recommendation, phosphorus, potassium, calcium, magnesium, zinc, and sodium. (https://extension.msstate.edu/agriculture/soils/soil-testing/fee-schedule)
MSU Extension has county offices statewide, and the county office finder is on the County Offices page. (https://extension.msstate.edu/county-offices)

What to do next

Start by creating your sample order at the official MSU Extension soil testing page, then print or write down the order number for each sample container.
If convenience matters, drop the sample at your county Extension office; if speed matters, MSU Extension says mailing it yourself is probably fastest.
Use the county office finder to get your local office details before collecting boxes or dropping off samples.

Helpful guides

Soil sampling planner →

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