I know of two. Hawaii, which was the site of Pearl Harbor. Maine, where the USS Eagle was sunk by a German U-boat. Were any other states directly attacked during WW2?
The Japanese firebombed a forest area in Oregon in a failed attempt to start a massive out-of-control fire. The damage actually done was minor and no one died.
Just to be pedantic, I feel I should point out that Hawaii was a US territory at the time of WWII, not a state.
Yes.
A number of states suffered inconsequential damage due to Japanese Fire Balloons.
Six people were killed in Oregon by one.
ETA: Missed it by that much!
Alaska was not yet a state at the time, but a couple of the Aleutian Islands (Attu and Kiska) were occupied by Japanese forces.
We’re talking about two different things. The Brookings firebombing was a piloted attack, while the fire balloons were unmanned and sent out blindly. I’d forgotten about them.
Alaska wasn’t a state at the time but it was a U.S. territory, so I don’t know if you want to count it or not. The Japanese held a couple of the Aleutian Islands for a while during 1942 and 1943.
In 1942, a Japanese sub attacked the Ellwood Oil Field in California. It cause a lot more panic than it did actual damage. Shortly after that, the panic resulted in the “Battle of Los Angeles” in which a bunch of artillery shells and anti-aircraft guns were fired at, well, actually probably nothing.
Also in 1942, another Japanese sub attacked Fort Stevens in Oregon. They destroyed a basketball hoop and took out some phone lines but otherwise did little damage.
A Japanese bomber launched from a submarine aircraft carrier also bombed Oregon in 1942, attempting to start large-scale forest fires. It was not successful. A second bombing raid on Oregon was similarly unsuccessful in starting any major forest fires.
Late in the war, the Japanese attached bombs to balloons and floated them over the ocean, with timers that would release the bombs over the U.S. Obviously, since the timers had no way of knowing what the actual wind conditions were, this wasn’t exactly precision bombing. The Japanese were certain that this would kill thousands and would lead to wildfires destroying huge swaths of American land. One family in Oregon was killed when they found one of the bombs and took a closer look. Most of the bombs are thought to have exploded harmlessly somewhere in the Rocky Mountains, but there could still be some unexploded bombs out there somewhere.
[QUOTE=wikipedia]
Japan released the first of these bomb-bearing balloons on November 3, 1944. They were found in Alaska, Washington, Oregon, California, Arizona, Idaho, Montana, Utah, Wyoming, Colorado, Texas, Kansas, Nebraska, South Dakota, North Dakota, Michigan[4] and Iowa, as well as Mexico and Canada.
[/QUOTE]
A German submarine shelled an oil refinery in the Caribbean in 1942. Again, this was a U.S. territory not a state, so not sure if you want to count it or not.
ETA: Ninja’d a bit while I was typing.
A couple western Alaskan islands were attacked and occupied by a Japanese force in June 1942. They held the territory for more than a year, until finally destroyed by a much larger American force.
Oregon was hit by incendiary weapons, from submarine-launched planes, later in '42, and then by balloon bombs in 1945.
If you count naval engagements I think there were sinkings by U-boats along much of the U.S. east and Gulf coasts. I’m not sure how many were within US territorial waters but there were quite a few off North Carolina at least.
Nor was Hawaii, of course.
Which in turn resulted in 1941. 
(I liked it, despite what people say about it.)
Indeed. Other US territories attacked during WW2 include Midway Atoll which was bombed during the Battle of Midway Island, Guam which was occupied by the Japanese in 1941 and retaken with heavy fighting during July and August 1944, and Wake Island which was occupied by the Japanese in December 1941 and remained occupied for the duration of the war.
The sub that fired on Fort Stevens had followed local fishing boats to the mouth of the Columbia River, to avoid any sea mine fields. They fired at the coastline to draw fire and expose any fortifications.
The fort commander called for a blackout and refused to return fire. Fort Stevens is now a 4300 acre Oregon state park. Great park and campground. I went there this morning and dug a limit of razor clams.
http://oregonstateparks.org/index.cfm?do=parkPage.dsp_parkPage&parkId=129
The Germans landed three teams of saboteurs in America via submarine. Two in 1942 - one in Florida and one in New York - and one in 1944 in Maine. None of these missions resulted in any actual sabotage but the saboteurs traveled through several states in addition to the ones they landed in.
On July 11th, 1944, two military planes crashed in Maine, killing 29 people, including 17 civilians. These were two separate unrelated incidents, one in South Portland and the other on Deer Mountain. To this day, these events are still the #1 and #2 worst plane crashes ever to happen in Maine. However, these planes were brought down by weather, not the Axis.
I found this bit interesting:
In addition to Operation Pastorius that Little Nemo linked to above (which involved German saboteurs landing at Ponte Vedra Beach, June, 1942), a couple months before that, in April '42, and a couple miles north, at Jacksonville Beach, the steam tanker SSGulfamerica was torpedoed by a German U-boat (U 123).
To the U-boat commander’s great credit, when he surfaced to finish off the tanker, he realized that missed shots could endanger civilians attending Jacksonville Beach’s amusement park. So, at great risk, he maneuvered his boat between the tanker and the shoreline so that missed shots would go out to sea and not into people spinning on the Ferris wheel or getting herpes at the kissing booth. The commander, Reinhard Hardegen, visited Jacksonville in 1990 and was received as an honored guest.
Even Nazis could show compassion and their enemy doesn’t always hold a grudge.
Boise City Oklahoma was also bombed. https://en.wikipedia.org/wiki/Boise_City,_Oklahoma (The OP didn’t say anything about being attacked by the enemy!)
If you’re counting all of these then you must also count the Philippines, a US Commonwealth at the time, attacked and occupied by Japan for three years.