[4] The terrain of Hamlin County consists of low rolling hills, dotted with small lakes and ponds.

[5] The terrain slopes to the south-southeast, and its highest point is on the eastern boundary line, near its NE corner, at 1,949 ft (594 m) ASL.

In terms of ancestry, 42.3% were German, 24.0% were Norwegian, 7.0% were English, 6.1% were Irish, 5.4% were Dutch, and 5.3% were American.

Source:[5] Hamlin County voters have usually voted Republican.

In only one national election since 1932 has the county selected the Democratic Party candidate.