Union County is bounded by beginning at the northwest corner of township six, range one, east; thence east on the township line to the northwest corner of section one, township six, range five, east; thence south to the southwest corner of section one, township seven, range five, east; thence west on section lines to the southwest corner of section four, township seven, range five, east; thence south to the southwest corner of section nine, township eight, range five, east; thence west to the northwest corner of section eighteen, township eight, range five, east; thence south to the southwest corner of section nineteen, same township and range; thence west to the northwest corner of section thirty, township eight, range four, east; thence north to the northwest corner of section nineteen, in the same township; thence west to the meridian line; thence north to the beginning. The county site is New Albany.