The state is the biggest in the US.
The Forestry Division says the fires were started by ''human activity'' but it's unclear if they were accidental or deliberate.  They say the specific cause is still under investigation.
Many people have had to move out of their homes.
Some houses have been ruined and huge areas of land have been destroyed.
40 miles north of Anchorage is where the Iditarod, Alaska's famed sled-dog race, typically kicks off.
Listen to this man talking about the efforts to make sure the teams of dogs living and working there, stay safe.
There are many separate fires in different areas.
Water-scooping aircraft and helicopters with water buckets have joined hundreds of firefighters to try to stop the fires spreading further.
There has been a late spring heat wave after record breaking temperatures in May.
There have been lots of thunderstorms.
Alaska Govenor Bill Walker says, '' It's pretty powerful. The fire itself is very powerful but the human response has been, I think, equally powerful to me.
To fly over and see what's been burnt and what's been left boy, we are so sorry about the losses of structures that have taken place.
I'm very pleased there has been no loss of life, I know we've lost some animals in the process and that's most unfortunate."

Researchers tested 15-year-old girls and boys from 26 countries in 2012.
They wanted to find how gaming affected their learning, using computer and paper tests in maths, science and reading.
The results found that those who played single-player games every now and then, did better than those who never, or hardly ever, played games.
Single-player gamers did particularly well in computer tests to do with maths and problem solving.
The researchers think this could be because they're more familiar with computer games, so they're more at ease with tests on computers.
However, the researchers also found that those who played games every day or very regularly did worse on paper-based tests.
They reckon too much gaming might crowd out other activities like doing homework and reading books.
The report found those who played multi-player online games did a lot worse in both paper and computer tests.
Those who played single-player games did much better.
Online multi-player games are typically played late at night, and for long periods of time, which might make those who play them more tired and less able to concentrate.
The research was published by the international organisation the OECD, which helps governments come up with plans for improving life in their countries.

The Belgium-flagged vessel overturned off the Kent coast at about 23:00 GMT on Tuesday, the BBC understands.
One person - spotted clinging to the upturned hull of the boat - was rescued almost nine hours later, at 07:30 GMT.
Kaimes Beasley, of Dover Coastguard, said it would be possible to survive in the water for about 15 hours.
Two helicopters, including one from the Belgian search and rescue service, plus three lifeboats have been involved in the search.
The operation was called off late Wednesday afternoon due to fading light, Ramsgate lifeboat said.
Mr Beasley said: "Weather conditions overnight were relatively benign, winds were not terribly strong and the sea had been calm.
"Either way, it is still the North Sea in the winter and would have been very cold.
"In the southern North Sea, water temperature is about 9.5C and the air temperature less than that.
"There is a significant risk in terms of hypothermia."
The emergency services were first alerted at daylight when a passing boat saw the upturned vessel with one of the crew members standing on it.
He was able to tell them that two of his colleagues were unaccounted for.
Earlier, two divers and a doctor from Belgium were lowered on to a Ramsgate lifeboat to join the search for the two missing fishermen.
The operation is focussing on an area just up the coast from here in an area known as North Foreland.
That is where the lifeboats were searching for much of the morning and continuing into the afternoon.
Teams of firefighters and special aircraft are working around the clock to try to put out huge wildfires that are raging across parts of Alaska.
[NEXT_CONCEPT]
A new international report suggests that gaming regularly can help you to do better in tests at school.
[NEXT_CONCEPT]
A search for two missing fishermen who disappeared when their boat capsized in the English Channel has been called off for the day.