 Of this area, or 33.8% is used for agricultural purposes, while or 23.6% is forested.Of the rest of the land, or 40.8% is settled (buildings or roads), or 15.3% is either rivers or lakes and or 0.6% is unproductive land.Of the built up area, industrial buildings made up 8.3% of the total area while housing and buildings made up 14.6% and transportation infrastructure made up 15.9%.