Union County is a district of Arkansas.
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
| Township of Boone | no seat recorded | |
| Township of Cornie | no seat recorded | |
| Township of El Dorado | El Dorado | |
| Township of Franklin | no seat recorded | |
| Township of Garner | no seat recorded | |
| Township of Harrison | no seat recorded | |
| Township of Henderson | no seat recorded | |
| Township of Jackson | no seat recorded | |
| Township of Johnson | no seat recorded | |
| Township of Lapile | no seat recorded | |
| Township of Norphlet | no seat recorded | |
| Township of Smackover | no seat recorded | |
| Township of Tubal | no seat recorded | |
| Township of Van Buren | no seat recorded | |
| Township of Wesson | no seat recorded | |
| Township of Wilmington | no seat recorded |
Nothing has been written about Union 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 El Dorado as the capital of Union County. If that is wrong, tell us what it should be and where you read it.
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