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ZIP codes in Thomas County, Nebraska

Thomas County, Nebraska has 3 ZIP codes in this list, from 69142 to 69166. They cover 3 places, among them Halsey, Seneca and Thedford.

ZIP codePlaceLand area (sq mi)Map point
69142Halsey12341.929, -100.296
69161Seneca15342.043, -100.833
69166Thedford75341.979, -100.557

The ZIP code areas of Thomas County add up to about 1,029 square miles of land (2,664 sq km) as the Census Bureau draws them. The largest is 69166 (Thedford), with 753 square miles.

Using these codes

Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.

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