The city of Fairfield is located in the county of Jefferson. It covers a total area of 16.63 sq. km. Industries related to advertising, aviation, architecture, boat equipments, publishing, construction, dairy, information technology, health, hotel, industrial and commercial machinery, insurance, metal fabrication, oil and lubrication and publishing, contribute to the local economy in a positive way. Businesses related to manufacturing of plastic products, consultancy in real estate, rental agencies of property, contracting in sheet metal work, supplies of swimming pool equipments and trailer renting and leasing, contribute to the local economy in a positive way. Commercial spaces are utilized by thrift shops, educational institutions, yogurt shops and recording studios.