 Of this area, or 32.5% is used for agricultural purposes, while or 19.8% is forested.Of the rest of the land, or 35.3% is settled (buildings or roads), or 15.1% is either rivers or lakes.Of the built up area, industrial buildings made up 9.5% of the total area while housing and buildings made up 6.0% and transportation infrastructure made up 12.7%.