Mattawa, WA

ZIP code 99349 covers the city of Mattawa in Grant County, Washington. This area is known for being a hub of agriculture, with vast fields of fruit orchards and vineyards surrounding the town. Its most important landmarks include the Gorge Amphitheater, a renowned outdoor music venue overlooking the Columbia River, and the Wahluke Slope, a prime wine-producing region recognized for its high-quality grapes.