Clay County is a district of South Dakota.
Boundaries: United States Census Bureau, MAF/TIGER Database (https://www.census.gov/geographies/mapping-files/time-series/geo/carto-boundary-file.html) via geoBoundaries, public domain
| City of Vermillion | Vermillion | 11 k |
| Town of Wakonda | no seat recorded | 321 |
| Township of Bethel | no seat recorded | |
| Township of Fairview | no seat recorded | |
| Township of Garfield | no seat recorded | |
| Township of Glenwood | no seat recorded | |
| Township of Meckling | no seat recorded | |
| Township of Norway | no seat recorded | |
| Township of Pleasant Valley | no seat recorded | |
| Township of Prairie Center | no seat recorded | |
| Township of Riverside | no seat recorded | |
| Township of Spirit Mound | no seat recorded | |
| Township of Star | no seat recorded | |
| Township of Vermillion | no seat recorded |
Nothing has been written about Clay County here, and neither Wikipedia nor Wikivoyage has an article we could draw one from. If you know the place, that makes you a better source than anything we have. Tell us what is worth knowing and where you got it.
We show Vermillion as the capital of Clay County. If that is wrong, tell us what it should be and where you read it.
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