Illinois deer research / Johnson County
Johnson County, Illinois — Deer Hunting Research
Southern IL region. FDR Deer Herd Index 20.2 — ranked #101 of 102 Illinois counties. Built from IDNR public harvest records and three record books deduplicated so every buck counts once.
E - Below AverageWhat drives the Johnson County index
Five weighted components, each scored 0–100 against all Illinois counties.
Trophy record — counted once
56 unique record-book bucks from 59 total listings across the major whitetail record books — 3 cross-book duplicates removed. Trophy rank #77 in Illinois.
| Book | Bucks |
|---|---|
| Listed in one book only | 54 |
| In two books | 2 |
| In all three books | 0 |
| Unique bucks | 56 |
2005–2024 harvest trend
| Season | Archery | Firearm | Total |
|---|---|---|---|
| 2024 | 842 | 1,090 | 1,932 |
| 2023 | 849 | 1,079 | 1,928 |
| 2022 | 857 | 1,214 | 2,071 |
| 2021 | 796 | 1,159 | 1,955 |
| 2020 | 868 | 1,321 | 2,189 |
| 2019 | 784 | 1,384 | 2,168 |
| 2018 | 666 | 1,562 | 2,228 |
| 2017 | 677 | 1,589 | 2,266 |
| 2016 | 631 | 1,640 | 2,271 |
| 2015 | 670 | 1,736 | 2,406 |
| 2014 | 784 | 1,539 | 2,323 |
| 2013 | 761 | 1,384 | 2,145 |
| 2012 | 638 | 1,719 | 2,357 |
| 2011 | 699 | 1,709 | 2,408 |
| 2010 | 721 | 1,706 | 2,427 |
| 2009 | 612 | 1,774 | 2,386 |
| 2008 | 661 | 1,851 | 2,512 |
| 2007 | 671 | 1,896 | 2,567 |
| 2006 | 601 | 1,901 | 2,502 |
| 2005 | 646 | 1,913 | 2,559 |
IDNR reports harvest by archery / firearm / CWD; muzzleloader is not broken out separately. Success proxy: Johnson County runs 3.36 record-book bucks per 1,000 hunter-trips.
See full Johnson County harvest charts →
Harvest by sex
IDNR records each harvested deer by sex. In 2024, Johnson County ran 1,079 bucks (males) and 853 does (females) — 55.8% bucks.
| Season | Bucks (M) | Does (F) | Total | % bucks |
|---|---|---|---|---|
| 2024 | 1,079 | 853 | 1,932 | 55.8% |
| 2023 | 1,076 | 852 | 1,928 | 55.8% |
| 2022 | 1,113 | 958 | 2,071 | 53.7% |
| 2021 | 1,096 | 859 | 1,955 | 56.1% |
| 2020 | 1,221 | 968 | 2,189 | 55.8% |
| 2019 | 1,192 | 976 | 2,168 | 55% |
| 2018 | 1,328 | 900 | 2,228 | 59.6% |
| 2017 | 1,335 | 931 | 2,266 | 58.9% |
| 2016 | 1,254 | 1,017 | 2,271 | 55.2% |
| 2015 | 1,321 | 1,085 | 2,406 | 54.9% |
| 2014 | 1,309 | 1,014 | 2,323 | 56.3% |
| 2013 | 1,231 | 914 | 2,145 | 57.4% |
| 2012 | 1,292 | 1,065 | 2,357 | 54.8% |
| 2011 | 1,320 | 1,088 | 2,408 | 54.8% |
| 2010 | 1,322 | 1,105 | 2,427 | 54.5% |
| 2009 | 1,352 | 1,034 | 2,386 | 56.7% |
| 2008 | 1,397 | 1,115 | 2,512 | 55.6% |
| 2007 | 1,461 | 1,106 | 2,567 | 56.9% |
| 2006 | 1,516 | 986 | 2,502 | 60.6% |
| 2005 | 1,491 | 1,068 | 2,559 | 58.3% |
See full Johnson County sex-composition chart →
Age structure
IDNR classifies each deer as adult, yearling (1.5-yr), or fawn. In 2024, Johnson County ran 68.4% adult, 19.8% yearling, and 11.8% fawn — a higher adult share points to a more mature age structure.
| Season | Adult | Yearling | Fawn | Total |
|---|---|---|---|---|
| 2024 | 1,321 | 383 | 228 | 1,932 |
| 2023 | 1,267 | 420 | 241 | 1,928 |
| 2022 | 1,381 | 400 | 290 | 2,071 |
| 2021 | 1,301 | 372 | 282 | 1,955 |
| 2020 | 1,494 | 452 | 243 | 2,189 |
| 2019 | 1,407 | 479 | 282 | 2,168 |
| 2018 | 1,376 | 540 | 312 | 2,228 |
| 2017 | 1,349 | 539 | 378 | 2,266 |
| 2016 | 1,444 | 496 | 331 | 2,271 |
| 2015 | 1,509 | 536 | 361 | 2,406 |
| 2014 | 1,404 | 479 | 440 | 2,323 |
| 2013 | 1,329 | 506 | 310 | 2,145 |
| 2012 | 1,404 | 521 | 432 | 2,357 |
| 2011 | 1,393 | 574 | 441 | 2,408 |
| 2010 | 1,428 | 544 | 455 | 2,427 |
| 2009 | 1,455 | 533 | 398 | 2,386 |
| 2008 | 1,524 | 520 | 468 | 2,512 |
| 2007 | 1,540 | 513 | 514 | 2,567 |
| 2006 | 1,515 | 532 | 455 | 2,502 |
| 2005 | 1,482 | 575 | 502 | 2,559 |
Age class is IDNR's field classification at check-in, not a lab-aged tooth-wear cohort; treat it as a directional maturity signal.
See full Johnson County composition charts →
Seasons & access
| Season | Method | Dates | Tags |
|---|---|---|---|
| Archery — Oct 1 to mid-Jan | archery | 2025-10-01 → 2026-01-18 | otc |
| Firearm — 1st + 2nd Shotgun Season | firearm | 2025-11-21 → 2025-12-07 | otc |
| Muzzleloader — December | muzzleloader | 2025-12-12 → 2025-12-14 | otc |
Public hunting land: 178,659 acres (80.0% of the county). Verify current season dates, permits, and site-specific rules with IDNR before hunting.
Where to hunt public in Johnson County
Full list on the Illinois public hunting land directory.
See Johnson County on the map
Parcels with owner & acreage, public hunting land with regs, access points, leaf-off imagery, and this research — together on one hunting map.
Nearby counties
Frequently asked questions
Is Johnson County, Illinois good for deer hunting?
Johnson County scores 20.2 of 100 on the FDR Deer Herd Index (E - Below Average), ranked #101 of 102 Illinois counties. The index is built from IDNR public harvest records, habitat, herd quality, momentum, and record-book history deduplicated across the major whitetail record books.
How many record-book bucks have come from Johnson County?
56 record-book whitetails are attributed to Johnson County across the major record books, with each buck counted once after cross-book deduplication.
Is there public hunting land in Johnson County, Illinois?
Yes — about 178,659 acres of public hunting land, roughly 80.0% of the county. Always verify current site regulations and permit requirements before hunting.
How many deer were harvested in Johnson County last season?
IDNR records show 1,932 deer harvested in Johnson County in 2024, the most recent reported season.