After doing some research on the web, I got a lot of conflicting information on what documents were actually required. I later found out that this may partially have to do with which Italian consulate you go to. Each has slight variations on what proof they are looking for. Some of this may also have had to do with the consulates changing their requirements over time. Either way, it is best to check out the consulates website that services your state to find out exactly what you need. Below is a list of the Italian consulates along with the states that each serves.
Note 8/20/2011: I’ve updated all of the links so they now go directly to the English citizenship page for each consulate. Also, some consulate sites have better information than others. The San Francisco site has a fantastic form you can download which will get you started. From what I have seen, most consulates are pretty consistent in their requirements with minor variations. The New York consulate seems to have slightly more stringent requirements than the others.
Boston – Consulate
Jurisdiction: Maine, Massachusetts, New Hampshire, Rhode Island, Vermont
Chicago – Consulate
Jurisdiction: Colorado, Illinois, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota, Wisconsin, and Wyoming
Detroit – Consulate
Jurisdiction: Indiana, Kentucky, Michigan, Ohio, Tennessee
Houston – Consulate
Jurisdiction: Arkansas, Louisiana, Oklahoma, Texas
Los Angeles – Consulate
Jurisdiction: Arizona, California (counties: Imperial Valley, Kern, Los Angeles, Orange, Riverside, Santa Barbara, San Bernardino, San Diego, San Luis Obispo, Ventura), Nevada, New Mexico
Miami – Consulate
Jurisdiction: Alabama, British Virgin Islands, Cayman Islands, Florida, Georgia, Island of Saba, Mississippi, Puerto Rico, St. Maarten, St. Eustatius, South Carolina, Turks and Caicos, U.S. Virgin Islands
New York – Consulate
Jurisdiction: New York, Connecticut, the British Territories of Bermuda Islands
Newark – Consulate
Jurisdiction: New Jersey (Counties: Bergen, Essex, Hudson, Hunterdon, Mercer, Middlesex, Monmouth, Morris, Passaic, Somerset, Sussex, Union, Warren)
Philadelphia – Consulate
Jurisdiction: Pennsylvania, Delaware, North Carolina, West Virginia, New Jersey (only the following counties: Atlantic, Burlington, Camden, Cape May, Cumberland, Gloucester, Ocean and Salem).
San Francisco – Consulate
Jurisdiction: Alaska, California (except the following counties, which are under the jurisdiction of the Italian Consulate in Los Angeles: Imperial Valley, Kern, Los Angeles, Orange, Riverside, Santa Barbara, San Bernardino, San Diego, San Luis Obispo, Ventura) Hawaii, Idaho, Montana, Oregon, Utah, Washington, American Territories of Samoa, American Territory of Guam, Northern Mariana Islands, Johnston Atoll, Wake Island, Midways Islands
Washington D.C. – Embassy
Jurisdiction: Maryland (Counties: Montgomery, Prince George), Virginia (Counties: Arlington, Fairfax)
I also found out that there are smaller adjunct consulates scattered throughout the US. For example, my city of Portland, OR has one. From what I have found these do not have citizenship services and you must go to one of the main consulates listed above.
What has been your experience in working with the Italian consulate?