Question: Which county shares a border with the county where Concord Township is located?

full_context: Document 1: Wasioja Township, Dodge County, Minnesota: Wasioja Township is a township in Dodge County, Minnesota, United States. The population was 963 at the 2000 census. The unincorporated community of Wasioja is located within the township.
Document 2: Dodge City, Kansas: Dodge City is the county seat of Ford County, Kansas, United States, named after nearby Fort Dodge. The city is famous in American culture for its history as a wild frontier town of the Old West. As of the 2010 census, the city population was 27,340.
Document 3: Watertown High School (Wisconsin): Watertown High School is a high school located in Watertown, Wisconsin, in Dodge County. It serves grades nine through twelve. The school is operated by the Watertown Unified School District.
Document 4: Logan Township, Dodge County, Nebraska: Logan Township is one of fourteen townships in Dodge County, Nebraska, United States. The population was 534 at the 2000 census. A 2006 estimate placed the township's population at 518.
Document 5: Portland (community), Dodge County, Wisconsin: Portland is an unincorporated community located partially in the town of Portland in Dodge County, Wisconsin and partially in the town of Waterloo in Jefferson County, Wisconsin, United States.
Document 6: Dodge Township, Dubuque County, Iowa: Dodge Township is one of seventeen townships in Dubuque County, Iowa, USA. As of the 2000 census, its population was 1,204.
Document 7: Herman, Dodge County, Wisconsin: Herman is a town in Dodge County, Wisconsin, United States. The population was 1,207 at the 2000 census. The unincorporated communities of Herman Center and Huilsburg are located in the town. The unincorporated community of Hochheim is also located partially in the town.
Document 8: Dodge (CDP), Wisconsin: Dodge is an unincorporated census-designated place located in the town of Dodge, Trempealeau County, Wisconsin, United States. Dodge is south-southwest of Arcadia. Dodge has a post office with ZIP code 54625. As of the 2010 census, its population was 121.
Document 9: Polk, Wisconsin: Polk is a town in Washington County, Wisconsin, United States. The population was 3,938 at the 2000 census. The unincorporated communities of Ackerville, Cedar Creek, Cedar Lake, Diefenbach Corners, Mayfield, and Rugby Junction are located in the town. The town derives its name from James K. Polk, 11th U.S. President, who was in office when Wisconsin attained statehood in 1848.
Document 10: Concord Township, Lake County, Ohio: Concord Township is one of the five townships of Lake County, Ohio, United States. The 2000 census found 15,828 people in the township.
Document 11: Concord Township, Highland County, Ohio: Concord Township is one of the seventeen townships of Highland County, Ohio, United States. As of the 2010 census the population was 1,415, up from 1,167 at the 2000 census.
Document 12: Woodland, Dodge County, Wisconsin: Woodland is an unincorporated community located, in the town of Rubicon, in Dodge County, Wisconsin, United States. It is located at the intersection of Wisconsin Highway 67 and County highway WS.
Document 13: West Concord, Massachusetts: West Concord is an unincorporated village and census-designated place (CDP) in the town of Concord in Middlesex County, Massachusetts, United States. The population was 6,028 at the 2010 census.
Document 14: Concord Township, Dodge County, Minnesota: Concord Township is a township in Dodge County, Minnesota, United States. The population was 587 at the 2000 census. The unincorporated community of Concord is located within Concord Township. The city of West Concord is located within the township geographically but is a separate entity.
Document 15: Fort Dodge, Iowa: Fort Dodge is a city in and the county seat of Webster County, Iowa, United States, along the Des Moines River. The population was 25,206 in the 2010 census, an increase from 25,136 in the 2000 census. Fort Dodge is a major commercial center for North Central and Northwest Iowa. It is located on U.S. Routes 20 and 169.
ground_truth: Jefferson County
sub_queries: Concord Township >> located in the administrative territorial entity Answer: Dodge County
Dodge County >> shares border with Answer: Jefferson County