The Missouri Department of Conservation (MDC) has reduced the number of counties in its management zone for chronic wasting disease (CWD) from 48 to 29, following recent research that shows the majority of buck’s disperse less than 25 miles in Missouri.

Changes to the CWD Management Zone will impact restrictions on feeding deer, antler-point restrictions, antlerless permits for some counties and mandatory CWD sampling.  


The 29 counties in the department of conservation’s CWD Management Zone beginning in July are: Adair, Barry, Cedar, Chariton, Christian, Crawford, Franklin, Gasconade, Hickory, Howell, Jefferson, Knox, Linn, Macon, Mercer, Oregon, Ozark, Perry, Polk, Putnam, St. Charles, St. Clair, St. Francois, Ste. Genevieve, Stone, Sullivan, Taney, Warren and Washington.


CWD is a deadly, infectious disease in white-tailed deer and other members of the deer family. The condition has no vaccine or cure and eventually kills all deer it infects. CWD spreads from deer to deer and through the environment. MDC has documented 116 cases of CWD in Missouri since 2012. 


The CWD Management Zone helps track and limit the spread of the wasting disease. MDC designed the CWD Management Zone in 2012 as a response to finding CWD in Missouri. The zone consisted of counties within 25 miles of where the department of conservation found CWD. The 25-mile-radius was based on existing research from other states that shows deer may disperse up to 25 miles from the area where they were born, especially young bucks in search of territory or mates. 


Recent MDC research shows more than 90 percent of bucks in Missouri disperse less than 10 miles. Based on this recent research, MDC is removing the following counties from its CWD Management Zone, where there haven't been cases of CWD found within the 10-mile radius: Benton, Bollinger, Boone, Callaway, Cape Girardeau, Carroll, Cole, Cooper, Dade, Grundy, Livingston, Madison, McDonald, Miller, Moniteau, Morgan, Osage, Randolph, Schuyler, Scotland, Shelby and St. Louis.


MDC removed Cole and Moniteau counties from the zone, since there haven’t been cases of CWD documented since MDC’s extensive follow-up CWD testing after a single instance of CWD was confirmed in Cole County in 2015.


MDC added Christian, Howell and Oregon counties to the CWD Management Zone after recent findings of CWD.


Resulting Regulation and Other Changes


MDC will require hunters who harvest deer in any of the 29 counties of the CWD Management Zone during the opening weekend of the fall firearms deer season, Nov. 16 - 17, to take their harvested deer, or the head with at least six inches of neck attached, on the day of harvest to one of MDC’s numerous CWD sampling stations throughout the zone. Hunters who harvest deer in counties no longer part of the zone are not required to participate in mandatory sampling.


MDC reminds hunters that the change in the CWD Management Zone will also impact restrictions on feeding deer, antler-point restrictions, and antlerless permits for some counties.


Feeding deer or placing minerals for deer unnaturally concentrates the animals and can help spread CWD. Therefore, the Wildlife Code of Missouri prohibits the placement of grain, salt products, minerals, and other consumable natural and manufactured products used to attract deer year-round within counties of the CWD Management Zone. The feeding ban no longer applies to counties removed from the zone.


MDC notes the antler-point restriction (APR) for deer hunting does not apply to counties in the CWD Management Zone. Protecting young bucks from being harvested in areas where CWD has been found can increase the spread of the disease. The APR has been reinstated for some counties removed from the zone.


MDC also notes the increased availability of firearms antlerless permits for some counties in the CWD Management Zone can help prevent undesired population increases in local deer numbers around where CWD has been found.


For more information on CWD, the feeding ban, antler-point restrictions, antlerless permits and mandatory CWD sampling visit: