Coorg, also known as Kodagu, is situated in the state of Karnataka, India. Here is a detailed explanation of this answer:

Introduction:
Coorg, a popular tourist destination, is a district located in the southwestern part of Karnataka, India. It is famous for its scenic beauty, coffee plantations, lush green forests, and rich cultural heritage.

Location:
Coorg is situated in the western ghats of southwestern Karnataka. It is bordered by the states of Kerala to the southwest, Tamil Nadu to the southeast, and the districts of Mysore to the east and Dakshina Kannada to the northwest.

Geography:
Coorg is a hilly region with an average elevation ranging from 900 to 1,700 meters above sea level. It is known for its picturesque landscapes, misty hills, and evergreen forests. The district is also home to several rivers, including the Kaveri, which originates from the Talacauvery, a sacred spot in Coorg.

Culture:
Coorg has a unique culture and is inhabited by the Kodava people, who have their own distinct language, customs, and traditional attire. The Kodavas are known for their martial traditions and have a rich history of valor and bravery. The region is also known for its festivals, especially the annual harvest festival called "Puthari."

Tourism:
Coorg attracts a large number of tourists from all over the world. The district offers a range of attractions, including coffee and spice plantations, waterfalls, wildlife sanctuaries, and trekking trails. Some popular tourist spots in Coorg include Abbey Falls, Nagarhole National Park, Dubare Elephant Camp, and the Golden Temple (Namdroling Monastery).

Conclusion:
In conclusion, Coorg is situated in the state of Karnataka, India. Its breathtaking beauty, rich cultural heritage, and abundant tourist attractions make it a must-visit destination for nature lovers and adventure enthusiasts.