Animation: H-E-B and Walmart in Texas, By The Numbers

H-E-B might claim a 70-year lead as the dominant grocer in Texas, but Walmart has focused much of its recent growth in the Lone Star State, where it operates enough stores to warrant its own corporate division.

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Interactive Map: Grocery War

H-E-B and Walmart are competing head-to-head at nine busy highway locations in the San Antonio-area. And Walmart is building or will break ground soon at three new Supercenters near H-E-B stores – in Leon Springs, Universal City and Bulverde. Altogether, H-E-B operates 45 stores in San Antonio; Walmart has 29 stores.

See any patterns?

Interactive tool: Market Basket Analysis

The Express-News decided to put San Antonio's low-price battle to the test. We chose more than a dozen random items -- with a preference for in-store brands -- from a Walmart at 6703 Leslie Road and H-E-B at Culebra Road and Loop 1604.

Click through some of items below to see which store offered the lowest prices on that day in late June.