An Illinois Centennial Farm is a property recognized by the Illinois Department of Agriculture as having remained in the same family for at least 100 consecutive years. To earn the designation, you submit an application with a verified chain of descent and a $50 fee, and approved families receive a road-grade sign for the farm entrance along with a certificate signed by the Director of Agriculture and the Governor.1Illinois Department of Agriculture. Centennial Farms
Who Qualifies
The core requirement is a single sentence: the farm must have been owned by descendants of the original owner for at least 100 consecutive years.1Illinois Department of Agriculture. Centennial Farms Those descendants can be lineal or collateral. Lineal means the direct line of descent, so a child, grandchild, or great-grandchild. Collateral means a relative who shares a common ancestor but sits off the direct line, such as a sibling, nephew, niece, or cousin.2Illinois Department of Agriculture. Illinois Heritage Farm Programs
That collateral provision matters more than people expect. If the farm passed from a great-uncle to a nephew rather than father to son, the chain still counts.
A few things you might assume are required, aren’t. There is no minimum acreage in the official program materials, and there is no requirement that the land be in active agricultural production today. The application asks for information about the present owner, the farm’s location, and a verified chain of descent; it does not impose an acreage floor or ask for proof of current farming.3Illinois Department of Agriculture. Centennial Farms Program Certification Application If the property has shrunk over generations or part of it is rented out, that alone should not disqualify you.
How to Apply
The process has three parts: the forms, third-party verification, and the fee.
Download the application from the Illinois Department of Agriculture’s Heritage Farm Programs page. You will provide information about the current owner, the farm’s location, and a chronological list of every owner in the family chain going back to the original purchase.
Next, a recognized title searcher must verify the chain of descent. The application specifically names abstractors, attorneys, and county recorders of deeds as acceptable verifiers.3Illinois Department of Agriculture. Centennial Farms Program Certification Application The verifier reviews title records, deeds, probate files, and other documents to confirm the ownership chain is unbroken.
Include a $50 check payable to the Centennial Farm Signs Fund. The fee offsets the cost of the sign.1Illinois Department of Agriculture. Centennial Farms
Mail the completed forms, the verification page, and the check to:
Illinois Centennial Farms Program
Illinois Department of Agriculture
State Fairgrounds
P.O. Box 19281
Springfield, Illinois 62794-92813Illinois Department of Agriculture. Centennial Farms Program Certification Application
The program has no published deadline. Applications are accepted on a rolling basis, and approved applicants are notified by mail. No specific processing timeline is guaranteed. Incomplete forms may stall without notice, so check everything before sending.
Proving the Chain of Descent
Verification is where applications succeed or fail. A century of ownership means working through generations of property transfers, and records from the 1800s aren’t always tidy. The verifier assembles the chain from whatever the county has on file: deeds, probate records, wills, and court orders.
Gaps are common, especially when an ancestor died without a will. An affidavit of heirship can bridge a gap by having a disinterested third party, someone who knew the family but does not stand to inherit, attest to the family relationships. Some title companies will not rely on an affidavit of heirship until it has been on record for five to ten years, so if there’s an unresolved gap in your family’s chain, recording that affidavit sooner rather than later helps. Clerical errors in old deeds, such as misspelled names or incorrect legal descriptions, can be addressed with a corrective deed or a scrivener’s error affidavit, depending on how substantive the mistake is.
Hiring an attorney or professional abstractor is not strictly required by the program, but it is the practical reality for most applicants. County records spanning a century rarely tell a clean story on their own, and a professional who traces title chains for a living will save you time and frustration.
What You Receive
Approved farms receive two things: a road-grade sign identifying the property as an Illinois Centennial Farm, and a certificate signed by the Director of Agriculture and the Governor.1Illinois Department of Agriculture. Centennial Farms The sign is meant for the farm entrance.
Be clear about what the designation does not include. Centennial Farm status does not come with tax breaks, property tax reductions, or preferential access to state agricultural grants. The Department of Agriculture’s program materials make no mention of financial incentives tied to the designation. The value is recognition, not money.
Sesquicentennial and Bicentennial Farms
Illinois runs two additional tiers under the same Heritage Farm umbrella. The Sesquicentennial Farms Program recognizes properties held by the same family for at least 150 years, and the Bicentennial Farms Program covers farms at the 200-year mark.2Illinois Department of Agriculture. Illinois Heritage Farm Programs The qualifying criteria are identical to the Centennial program except for the length of ownership. If your farm already carries Centennial status and crosses the 150-year threshold, you can apply for the Sesquicentennial designation as a separate recognition.
Is the Application Worth the Effort
The $50 fee is trivial. The title verification can cost real money if your records are messy. The return is intangible: a sign, a certificate, and a formal record of what your family has held onto.
The designation does carry practical weight in some contexts. Centennial Farms occasionally attract attention from local media, agricultural organizations, and heritage tourism visitors. If your family operates a farm stand, runs seasonal activities, or hosts events, the sign adds authenticity that can help visibility. Some families have used the designation in grant narratives for agricultural or historical preservation funding, not because the program grants preferential treatment, but because it documents the farm’s history in a way that supports any application where longevity matters.
The application also serves a family purpose that gets overlooked. Working through it forces you to document the complete ownership chain in one place. For families that have passed land down informally, sometimes with gaps or unclear transfers, that documentation effort can surface title issues worth resolving regardless of whether you care about the sign. More than a few families have discovered during the application process that their chain has a gap they didn’t know about, and fixing it early is far cheaper than dealing with it during a future sale or estate settlement.