Question: In which county of the state where KLEM is located can Clayton be found?

full_context: Document 1: Clayton, Missouri: Clayton is a city in and the county seat of St. Louis County, Missouri, United States, and borders the city of St. Louis. The population was 15,939 at the 2010 census. The city was organized in 1877 and is named after Ralph Clayton, who donated the land for the courthouse. The city is known for its multiple skyscrapers in its business district.
Document 2: KMXA-FM: KMXA-FM "Mix 99.9" is an Adult Contemporary radio station in Minot, North Dakota owned by iHeartMedia, Inc.. During the Christmas season "Mix 99.9" plays continuous Christmas music. The station begins playing the Christmas music the day after Thanksgiving and runs until Christmas Day.
Document 3: Clay City Township, Clay County, Illinois: Clay City Township is one of twelve townships in Clay County, Illinois, USA. As of the 2010 census, its population was 1,287 and it contained 649 housing units.
Document 4: Clayton, Iowa: Clayton is a city in Clayton County, Iowa, United States. The population was 43 at the 2010 census, down from 55 at the 2000 census. Clayton is located directly on the Mississippi River and is only accessible by a very steep road. Many people have summer homes in Clayton due to its proximity to the Mississippi River.
Document 5: KSTZ: KSTZ (102.5 FM, "Star 102.5") is a commercial FM radio station in Des Moines, Iowa. The station has a Hot Adult Contemporary radio format. KSTZ is part of Saga Communications' Des Moines Radio Group, along with KPSZ, KRNT, KAZR, KIOA, and KMYR, with studios located on Locust Street in Des Moines.
Document 6: Dow City, Iowa: Dow City is a city in Crawford County, Iowa, United States, along the Boyer River. The population was 510 at the 2010 census.
Document 7: KLTC: KLTC (1460 AM, "Big Country To Boot KLTC 1460 ") is a radio station broadcasting an Information/classic country format serving Western and Southwestern North Dakota, Southeastern Montana and Northwestern South Dakota and Northeast Wyoming from Dickinson, North Dakota. The station is currently owned by iHeartMedia, Inc..
Document 8: Clayton Township, Perry County, Ohio: Clayton Township is one of the fourteen townships of Perry County, Ohio, United States. The 2000 census found 1,432 people in the township.
Document 9: Clayton Township, Adams County, Illinois: Clayton Township is one of twenty-two townships in Adams County, Illinois, United States. As of the 2010 census, its population was 1,027 and it contained 465 housing units.
Document 10: Everly, Iowa: Everly is a city in Clay County, Iowa, United States. The population was 603 in the 2010 census, a decline from 647 in the 2000 census. The Ocheyedan River flows to the south and west of the city.
Document 11: KXIC: KXIC (800 AM) is a radio station licensed to serve Iowa City, Iowa and the greater Johnson County area. The station is owned by iHeartMedia, Inc. and licensed to Citicasters Licenses, Inc. It airs a News/Talk radio format.
Document 12: Summit Township, Clay County, Iowa: Summit Township is a township in Clay County, Iowa, USA. As of the 2000 census, its population was 452. Spencer Municipal Airport is located in the township.
Document 13: KLEM: KLEM (1410 AM) is a radio station licensed to serve Le Mars, Iowa. The station is owned by Powell Broadcasting Company, Inc. It airs a Soft Adult Contemporary music format.
Document 14: KZOI: KZOI (1250 AM) and its translator at 97.1 FM is a radio station licensed to serve Dakota City, Nebraska. The station is owned by John and Heidi Small, through licensee Cup O' Dirt LLC. It airs a regional Mexican format.
Document 15: KLMP: KLMP (88.3 FM), known as "The Light", is a radio station in Rapid City, South Dakota airing a Christian Talk format.
ground_truth: Clayton County
sub_queries: What is the name of the state where KLEM is located? Answer: Iowa
Clayton, Iowa >> located in the administrative territorial entity Answer: Clayton County