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Platte County Nebraska Last Updated: 03/02/2026 |
| Platte County is a county located in the United States state of Nebraska. According to the 2020 U.S. Census, the county had a population of 34,296. The county seat is Columbus. The Platte River flows eastward along the southern boundary of Platte County. The Loup River also flows eastward and southeast through the lower part of the county, emptying into the Platte River near Columbus. | |