[3] The terrain of Lake County consists of rolling hills, with the area devoted to agriculture.

[4] The terrain generally slopes to the south, although high points (ca.

1,814' ASL) are found on the north and south boundary lines and points between.

In terms of ancestry, 50.7% were German, 20.6% were Norwegian, 12.4% were Irish, 6.6% were English, 6.2% were Dutch, 5.0% were Danish, and 5.0% were American.

Lake County voters have voted for Republican Party candidates in 62 percent of national elections since 1964.