State Extension Soil Testing
Many states offer testing to their residents. You take a soil test See How and mail it to the lab. In about a week you get the results along with recommendations about how and when to fertilize. Each state has different instructions for their lab. Use the provided link to learn what to do.
State Soil Labs
| State | Price | Link |
| Alabama | $10 | Link |
| Alaska | No State Soil Lab | |
| Arizona | No State Soil Lab | |
| Arkansas | Free | Link |
| California | No State Soil Lab | |
| Colorado | $35 | Link |
| Connecticut | $15 | Link |
| Delaware | $22.50 | Link |
| Florida | $10 | Link |
| Georgia | $6 | Link |
| Hawaii | No State Soil Lab | |
| Idaho | $35 | Link |
| Illinois | No State Soil Lab | |
| Indiana | No State Soil Lab | |
| Iowa | No State Soil Lab | |
| Kansas | $9.50 | Link |
| Kentucky | $6 | Link |
| Louisiana | $11 | Link |
| Maine | $20 | Link |
| Maryland | No State Soil Lab | |
| Massachusetts | $20 | Link |
| Michigan | $26 | Link |
| Minnesota | $21 | Link |
| Mississippi | $10 | Link |
| Missouri | $15 | Link |
| Montana | No State Soil Lab | |
| Nebraska | No State Soil Lab | |
| Nevada | No State Soil Lab | |
| New Hampshire | $20 | Link |
| New Jersey | $20 | Link |
| New Mexico | No State Soil Lab | |
| New York | No State Soil Lab | |
| North Carolina | Apr-Nov: Free, Dec-Mar: $4 | Link |
| North Dakota | No State Soil Lab | |
| Ohio | No State Soil Lab | |
| Oklahoma | $10 | Link |
| Oregon | Recommend you use a private lab | Link |
| Pennsylvania | $10 | Link |
| Rhode Island | No State Soil Lab | |
| South Carolina | $6 | Link |
| South Dakota | No State Soil Lab | |
| Tennessee | $15 | Link |
| Texas | $12 | Link |
| Utah | $25 | Link |
| Vermont | $17 | Link |
| Virginia | $10 | Link |
| Washington | No State Soil Lab | |
| West Virginia | Free | Link |
| Wisconsin | $15 | Link |
| Wyoming | No State Soil Lab |