San Antonio is a sprawling metro of nearly 2.6 million people in south-central Texas, and it combines a deep Hispanic-Texan cultural heritage with a modern economy increasingly driven by healthcare, military, cybersecurity, and tourism. The San Antonio River Walk — a network of walkways along the San Antonio River one story below street level — is the city's iconic attraction, lined with restaurants, hotels, and shops. The Alamo, site of the famous 1836 battle, sits in the heart of downtown. Five military installations — Joint Base San Antonio (which encompasses Lackland AFB, Randolph AFB, Fort Sam Houston), Camp Bullis, and Camp Stanley — make San Antonio one of the largest military communities in the country, driving a constant cycle of PCS moves. The healthcare sector is massive: Methodist Healthcare, University Health, and Baptist Health System operate major hospital networks. USAA, the financial services giant serving military families, is headquartered on the far north side. Neighborhoods span from the historic King William District and Southtown's arts scene to the massive suburban growth in Stone Oak and the Far West Side, the established neighborhoods of Alamo Heights, and newer communities stretching toward New Braunfels. San Antonio's cost of living — boosted by no state income tax — remains competitive with Austin and Dallas. SAISD, NEISD, and Northside ISD are the major school districts, with NEISD and Northside generally rated highest.