How to Read Fall 2026 Farmland Auction Results If You Are Thinking About Selling in Illinois
What the Published Per-Acre Number Actually Represents
A farmland auction result is published as a dollars-per-acre figure. What that figure represents is the competitive bid of the highest bidder among the buyers who attended and registered for that specific auction, on that specific parcel, on that specific date. It represents the intersection of supply — the one parcel that was available — and the demand that was assembled and present in the room or online for that event. That intersection is not the same as market value in the academic sense, and it is not a number that can be directly applied to every other parcel in the same county without adjustment.
The factors that produced the published result on any specific auction are: the quality of the ground (Soil PI, drainage, field geometry, landlocked issues), the tenant situation (is the tenant in place, is the lease current market, is the tenant an asset or a liability), the marketing period (how long was the property marketed, how many registered bidders appeared, was the auction held during a period of thin attendance such as harvest week), and the specific buyers who attended and their specific motivation. A parcel that brought $15,200 per acre had a set of buyers with a specific motivation on that day. A different set of buyers on a different day might have produced $14,800 or $15,600 on the same parcel without the ground having changed at all.
How to Adjust Published Results for Your Specific Ground
A seller in Sangamon, Menard, or Logan County who has watched two or three recent fall auction results in their area has useful starting data. The adjustment process begins with Productivity Index. If the parcel that sold at $14,000 per acre had a county-assessed PI of 120 and your ground has a county-assessed PI of 130, your ground should bring more. The premium per PI point varies by county and by market conditions, but in the current central Illinois market a 10-point PI advantage on comparable ground in the same county typically represents $1,000 to $1,500 per acre of additional value — not a fixed formula, but a reasonable starting framework for calibrating an expectation.
Drainage documentation adds value in a range that the auction market expresses clearly. A parcel with a GPS tile map, documented main line condition, and a clean outlet sells above comparable ground without drainage documentation by a margin that consistently exceeds the cost of the documentation itself. If the recent sale you are using as a comparable was ground without documented drainage, and your ground has a full tile map and recent drainage contractor inspection, your ground should be expected to bring above that comparable. If the comparable had full drainage documentation and your ground does not, you are adjusting the other direction.
Tenant situation is the adjustment that sellers most frequently underestimate. A parcel that sold with a highly regarded long-term tenant at market rent, with clean lease documentation, will have attracted institutional buyers and neighboring operators who competed for it partly because the income stream and tenant relationship are immediately functional. A parcel that sold with a tenant at below-market rent, or with a problematic tenant relationship, will have attracted fewer institutional bidders and more buyers who were pricing in the cost of the transition — which suppresses the result. Identify which situation your comparable was in before applying its result to your ground.
What the Bidder Pool Tells You That the Price Does Not
The information that is most valuable in reading a farmland auction result — and the information that is almost never published — is the shape of the bidder pool. How many registered bidders were there? How many were active bidders in the room (bidding, not just observing)? Were institutional buyers present? Was there a neighboring operator in the room? What happened in the last $500 per acre of bidding — was there competitive pressure, or did the hammer fall quickly to a single bidder who was the only serious buyer?
An auction result of $14,500 per acre that was produced by a room of three active bidders, where the last $500 was contested between two of them over four bid increments, tells you something different about market depth than a result of $14,200 per acre produced by a room of seven active bidders where seven different buyer categories were represented. The second result, even at a lower price, tells you the market for this type of ground is broad and deep. The first result, even at a higher price, might reflect a specific motivated buyer who will not be present at your auction.
This is information that a seller's broker who attended the auction can report. It is not information available in the published result. If you are using fall 2026 auction comparables to set expectations for a spring 2027 listing, ask your broker or the auctioneer who ran the comparable sale about the registered bidder count and the character of the bidding. That context calibrates the published number in ways the number alone cannot provide.
When Fall Results Understate Spring Value and When They Do Not
Fall auction timing has both advantages and disadvantages relative to spring. The advantage is fresh comparable data — the most recent sales the buyer pool uses to calibrate bids are current, not nine months old. The disadvantage in years where harvest is active is reduced attendance — a buyer who is running a combine on his own ground in October is not bidding at an auction that week. An auction scheduled during peak harvest in October will typically draw a thinner bidder pool than the same parcel marketed in November after harvest or in March before planting.
The fall results that are most reliable comparables are the auctions that were held in November — after harvest, before the winter holidays, when the bidder pool has recovered from the planting and harvest cycles. An October auction result that was reported as strong but had only four registered bidders during active harvest week may understate what a similar parcel would bring in a well-attended November or March auction with 12 registered bidders. A November result with strong attendance is the most reliable indicator of what the market will produce for a similar parcel under similar marketing conditions.
Spring 2027 auction results will be calibrated against the fall 2026 results that are being set right now. A seller who is watching fall 2026 results closely and adjusting for PI, drainage, tenant quality, and bidder pool depth is building the comparable data foundation they need to set realistic expectations for a spring listing — not just accepting the headline number and assuming it applies uniformly.
Jared Williams is the Managing Broker and owner of Archer Realty & Auction LLC. He is a licensed Illinois auctioneer specializing in farmland auction and sale across central and western Illinois. Start the conversation at archerrealty.net.
