South Dakota law requires that all persons who are convicted of certain sex offenses must register with the County Sheriff and disclose their current address. They must re-register twice annually and within 5 days of an address change. All sex offenders are included on this list solely because of their conviction and state law, not because the State has made an individual determination of the person's dangerousness.
For the convenience of Clay County's citizens, a list of those currently registered as sex offenders can be found here as well as at the Sheriff's Office. The Clay County Sheriff updates this information regularly. However, this information can change quickly. You are cautioned that the information contained on this site may not reflect the current residence, status, or other information regarding the offender. If you believe that any of the information found on this site is in error, please notify us at ccso@claysheriff.org or (605)677-7100.
See our FAQ page for more information about the registry.
Click here to see a map of Community safe zones in Vermillion, SD. For more detailed information, please contact us.
Scroll down to see a list of Clay County registered sex offenders.
For more information about these offenders and to see a searchable list of sex offenders anywhere in South Dakota, click here:
South Dakota Sex Offender Registry
To search a National Database of registered sex offenders, click here:
National Sex Offender Registry
Return to:
CLAY COUNTY SHERIFF'S OFFICE
SEX OFFENDER LIST

Adams, Marvin Edward
112 E. Cherry St. #118
Vermillion, SD 57069
Felony Sexual Contact w/Minor (victim age: 11)
Date of Offense: 02/16/1992
Date of Conviction: 07/10/1992

Beene, Jon Lee
905 Tom St.
Vermillion, SD 57069
Sexual Contact w/ minor (victim age: 15)
Date of Offense: 05/24/1990
Date of Conviction: 01/07/1991
Butner,
Michael D.
112 Juniper St.
Yankton, SD 57078
(works in Clay County, TJ Trucking)
Sexual Contact w/minor (victim age 14)
Date of Offense: 01/02/2001
Date of Conviction: 01/08/2002

Buum, Ronald Lee
1609 E. Cherry St.
Vermillion, SD 57069
Indecent exposure
Date of Offense: 07/11/2003
Date of Conviction: 07/29/2003

Deal, David A.
833 E. Duke St. #64
Vermillion, SD 57069
Sexual contact w/minor (victim age: 15)
Date of Offense: 01/01/2003
Date of Conviction: 03/28/2003

Gobell, Rodney L.
46577 Missouri St.
Burbank, SD 57010
Sexual contact w/minor (victim age: 8)
Date of Offense: 12/23/2004
Date of Conviction: 05/16/2005

Grate, Joseph Lee
30551 444th Ave.
Mission Hill, SD 57046
(Works at Masaba Mfg. in Vermillion, SD)
Sexual Contact w/Child under 16 (victim age: 14)
Date of Offense: 05/22/1991
Date of Conviction: 11/27/1991

Harkness, Robby Chris
46937 320th St.
Burbank, SD 57010
Use of Internet to Solicit a minor (victim age: 16)
Date of Offense: 04/16/2001
Date of Conviction: 10/02/2001

Hemphill, Michael W.
917 Walnut St.
Yankton, SD 57078
(Attends USD in Vermillion, SD)
Make/Sell/Possess Child Pornography
Date of Offense: 08/27/2002
Date of Conviction: 11/26/2002

Irwin, Tristan Lee
607 Cottage Ave.
Vermillion, SD 57069
Sexual contact w/minor/Possession child porn (victim age: 14)
Date of Offense: 10/27/2000
Date of Conviction: 05/11/2001

Kelley, Benjermin R.
Unknown
Sexual contact w/minor (victim age:13)
Date of Offense:
Date of Conviction: 06/01/1999
This offender is not currently compliant.
He is believed to be in Sioux Falls, SD.
Anyone with information as to his whereabouts is encouraged to contact the Clay County Sheriff.

Lerfald, Chad Alan
1038 Kim Lane
Vermillion, SD 57069
Sexual Contact with minor (victim age: 15)
Date of Offense: 09/17/1997
Date of Conviction: 09/30/1997

Mathrole, Jeremy Jon
5516 F Ave.
Crofton, NE 68730
(attends USD in Vermillion, SD)
Sexual abuse, 3rd degree (victim age: 15)
Assault w/ intent to commit sex abuse
Date of Offense: 12/08/2000
Date of Conviction: 07/13/2001

McDonald, Andrew Michael
45687 Wicker St.
Meckling, SD 57044
Rape (victim age: 7)
Date of Offense:
Date of Conviction: 06/10/1998

McDonald, Christopher Lee
45687 Wicker St.
Meckling, SD 57044
Sexual contact with minor/3rd degree rape (victim age: 7)
Date of Offense: 04/21/1998
Date of Conviction: 01/26/1999

Moe, Troy Leroy
122 Linden St.
Vermillion, SD 57069
Sexual Contact w/minor (victim age: 5)
Date of Offense: 07/07/1992
Date of Conviction: 06/19/1994

Muecke, Eldon Russell
1022 Tom St.
Vermillion, SD 57069
Rape/Sexual contact w/minor (victim age: 14)
Date of Offense: 04/26/2000
Date of Conviction: 01/04/2001
Plank,
Nicholas C.
1208 E. Cherry St.
Vermillion, SD 57069
Sexual contact w/minor (victim age: 14)
Date of Offense: 03/20/2000
Date of Conviction: 05/19/2000

Renschler, Nylis Gene
46653 Walker's Pl. #33
Vermillion, SD 57069
Sexual contact with child
Sexual abuse, 3rd degree (victim age: 13)
Date of Offense: 04/02/1999
Date of Conviction: 07/15/1999

Roncskevitz, Richard Dwight
807 Cottage Ave. #12
Vermillion, SD 57069
Possession of Child Pornography (victim age: approx. 8-10)
Date of Offense: 06/19/2003
Date of Conviction: 07/02/2004

Sitting Crow, Herbert Austin
911 E. Duke St. #42
Vermillion, SD 57069
Sexual contact with child (victim age: 15)
Date of Offense: 10/15/1999
Date of Conviction: 12/22/2000

Syverson, Kelly Lee
3015 Mary St.
Yankton, SD 57078
(Works at Polaris in Vermillion, SD)
2nd Degree Rape (victim age: 21)
Date of Offense:
Date of Conviction: 03/31/1999

Vermillion, Franklin Charles
911 E. Duke St. #6
Vermillion, SD 57069
Rape, 2nd Degree (victim age: 16)
Date of Offense: 07/15/1998
Date of Conviction: 12/08/1998

Voudry, Mark Allan
122 Court St.
Vermillion, SD 57069
Sexual Contact with Child (victim age: 13)
Date of Offense: 10/13/96
Date of Conviction: 04/17/97