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Fully Drawn Research · Field IntelligenceWorking Paper 39 · Trophy Geography
Illinois · 102 counties · FDR Index · within-state only

Where the Giants Live: One Honest Trophy Ranking, and Why Only One

FDR Research Desk · · Updated · State wildlife-agency public records & FDR analysis

The question “which counties grow the giants” has three different answers depending on what you count. Count raw record-book listings and Illinois crowns its familiar names. Weigh those listings the way FDR does (cross-deduplicated, and set beside habitat, herd quality, population, and momentum) and the map rearranges: the elite tier is inland and east-central, and a celebrated record-book county can sit in the sixties. That gap is the whole argument for why an honest trophy ranking is hard, and why FDR publishes one for Illinois and refuses to fake it for anywhere else.

Key findings
  • On the full FDR Index, Illinois’s elite tier is inland and east-central (Edgar (80.5), Vermilion (79.2), Logan (73.9), Piatt (71.2), Iroquois (70.2), Menard (70.1)), not the big-river names the reputation favors.
  • Record listings and huntable quality are different measurements. Will County carries one of the state’s heaviest trophy-record pedigrees (an FDR Trophy Index near the ceiling), yet lands at roughly #68 overall: an urbanizing Chicago-collar county where the listings are history and the herd is fragmented.
  • Even Pike, the mecca, ranks #26 on the full index: a real, strong county, but not the top of the state once herd and habitat are weighed alongside the trophy signal.
  • FDR has built this multi-source, cross-deduplicated index for Illinois only. For Iowa, Ohio, and Missouri only a single-book proxy exists, and a single book mostly measures reporting culture (see the companion paper), so FDR does not publish a trophy ranking there.

IThree answers to one question

What you count decides who wins

Ask where the biggest bucks live and most published lists answer the same lazy way: they tally cumulative record-book listings and rank the counties by the pile. It is an intuitive proxy and a badly biased one. A listing total rewards the counties that have been famous longest, that had the access and the culture to submit and score animals, and that sit in states which measure aggressively. It is a lagging, self-reinforcing reputation index. The FDR approach starts from the same public record-book material but treats it as one input among several: the trophy signal is cross-deduplicated across the major books so a single deer counted in three places is counted once, then it is set beside habitat, herd quality, population, and recent momentum. The result is a proprietary 0–100 output (the FDR Index) whose construction and weighting are not disclosed, but whose ranking can be read plainly. And read plainly, it disagrees with the listing pile.

Figure 1 · FDR Index · Illinois, top of 102 counties
Illinois’s elite tier is inland
01Edgar80.5
02Vermilion79.2
03Logan73.9
04Piatt71.2
05Iroquois70.2
06Menard70.1
07Hancock67.8
08Crawford67.2
The FDR Index is a proprietary 0–100 output ranked within Illinois only; construction and weighting are not disclosed, and the value is not a count. Edgar leads a tier that sits in the state’s inland east-central belt, not the celebrated big-river corridors. Source: IDNR public records and major whitetail record-book compilations (cross-deduplicated), FDR analysis.

A record-book pile tells you where big bucks were written down. The index tries to tell you where the ground still grows them. Those are not the same county.

IIThe county the listings oversell

Will County, #1 on paper and #68 on the ground

The clearest case is Will County, on the southwestern edge of the Chicago metro. By raw trophy-record signal Will is near the very top of Illinois: decades of documented big deer, a genuinely elite listing pedigree. Rank the state on listings alone and Will belongs in the conversation with anyone. On the full FDR Index it sits at roughly #68 of 102. Nothing about the historical record is false; it simply describes a landscape that has been paved and fragmented, where huntable ground is thin and access is scarce. Pike, the western-river mecca, tells a gentler version of the same story: a strong county that ranks #26 once herd and habitat are weighed, not the automatic #1 its name implies. The lesson is not that reputations are lies. It is that a reputation is a historical measurement, and a hunter chooses ground in the present tense.

CountyReputation on raw listingsFDR Index rankTier
EdgarModest1A · Elite
VermilionModest2A · Elite
PikeElite / iconic26B · Strong
FultonStrong31B · Strong
WillElite / iconic~68C · Above average

Rank by the raw listing pile and the iconic names lead; rank by the full FDR Index and the inland working counties do. “Reputation” is described qualitatively — no record counts are published. Source: IDNR public records and cross-deduplicated record-book compilations, FDR analysis.

IIIWhy only Illinois

The discipline behind the restraint

It would be easy to run the same top-ten list for Iowa, Ohio, and Missouri, and the traffic would reward it. FDR does not, and the reason is the same gap Figure 1 exposes. Outside Illinois we currently hold only a single-book trophy proxy, and a single book overwhelmingly measures how aggressively a state’s hunters report and score (reporting culture, not deer), a bias examined in the companion paper on record-count traps. Illinois is the one state where the trophy signal has been cross-deduplicated across the major books and fused with independent habitat, herd, population, and momentum layers into a defensible output. Until that same multi-source index exists for a state, ranking its counties on the listing pile would repeat the Will-County error deliberately. The honest move is to publish the one ranking that survives scrutiny and to name the others as not-yet-built.

This is also why the FDR Index is expressed only as a tier and a bounded score, never as the underlying tallies. The counts that feed the trophy component are a licensing and compilation question, not a public number, and the value of the index is the fusion, not any one input. What a hunter needs is the ordering and the tier (where a county sits and how far above or below its neighbors) and that is exactly what the output gives, without reproducing anyone’s compilation.

The right number of states to rank on data you do not yet have is zero. Illinois is ready; the rest are honest blanks, and we will fill them the same careful way.

Notes & disclosures
  1. The FDR Index is a proprietary, derived metric expressed as a 0–100 output and an A–E tier. Illinois county rankings are current to the 2024 season and are the same index basis behind the FDR Illinois Whitetail County Report.
  2. The trophy component is cross-deduplicated across the major whitetail record books so a single animal listed in more than one is counted once; underlying compilations, counts, and component weights are not reproduced.
  3. Will and Pike county ranks illustrate the divergence between a raw-listing reputation and a multi-factor index; both remain genuinely strong counties. County land-use context (metro fragmentation near Will) per IDNR and public land-cover records.
  4. Limitations: the index ranks counties, not individual properties, and does not measure access or hunting pressure. A high tier is not a guarantee of a mature buck on any given parcel.

Fully Drawn Research is an independent data analysis desk, not affiliated with the Illinois Department of Natural Resources, the Illinois Department of Transportation, or any mapping or outfitting provider. The FDR Index and FDR Trophy Index are proprietary derived outputs, expressed as tiers or bounded scores; they are not record-book measurements, and underlying record compilations, counts, and weighting are not reproduced. Fully Drawn Research is an independent data analysis desk, not affiliated with any state wildlife agency. County figures analyze public agency records and are current to the 2024 season.