Chickasaw County is bounded by beginning at the northwest corner of township twelve, range two, east; thence east to the northeast corner of township twelve, range five, east; thence south on the range line to the northeast corner of township fifteen, range five, east; thence west on the township line to the range line between ranges three and four, east; thence south to the southeast corner of section twenty-four, township fifteen, range three, east; thence west to the northwest corner of section thirty of same township; thence south to the southwest corner of same section; thence west to the northeast corner of section thirty-six, township twenty-two, range ten, east; thence north to the northeast corner of township twenty-two, range ten, east; thence east to the southeast corner of township fourteen, range one, east; thence north to the beginning. The county sites are Houston and Okolona.