How much does it cost to run an electric home freezer for one year in the midwest?

The size and age of the freezer make a big difference also how much
you pay per kilowatt hour, if you are looking to buy a new one they
supply a sticker or tag on the energystar models that estimates the
freezers cost per year here is a link to energystar which will provide
additional info http://energystar.gov/index.cfm?c=refrig.pr_refrigerators

The first half of this answer was directly copied/pasted without
citation from a Mr. Electricity article on the subject. The comments
in the last two paragraphs are paraphrased, but also included in this
article. You can read the original in full here:
http://michaelbluejay.com/electricity/refrigerators.html