The Louisa County Fair is being held this week and like all Midwest fairs, livestock is the main attraction. Louisa County Extension Director Kathy Vance says the livestock showings are as much for non-agriculturists as they are for enthusiasts. Vance says the Louisa Fair is almost a smaller version of the Iowa State Fair . She says its a good way to have fun with the entire family without spending too much money.. The fair will run all this week at the county fairgrounds in Columbus Junction.