 Of this area, or 20.7% is used for agricultural purposes, while or 12.4% is forested.Of the rest of the land, or 18.5% is settled (buildings or roads), or 0.8% is either rivers or lakes and or 0.3% is unproductive land.Of the built up area, industrial buildings made up 3.9% of the total area while housing and buildings made up 5.4% and transportation infrastructure made up 7.0%.