Onion Creek is a small community located in Travis County, Texas, situated just south of Austin. It is known for its scenic beauty, featuring the Onion Creek that flows through the area, providing recreational opportunities such as fishing and hiking. The community is primarily residential, with a mix of homes and natural landscapes. The area around Onion Creek is characterized by rolling hills and lush greenery, making it a popular spot for outdoor activities. It is also close to several parks, including McKinney Falls State Park, which offers trails and picnic areas. The community's proximity to Austin allows residents to enjoy urban amenities while living in a more tranquil setting.