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ZIP codes in Montgomery County, Texas

Montgomery County, Texas has 25 ZIP codes in this list, from 77301 to 77393. They cover 10 places, among them Conroe, Spring, Magnolia and Montgomery.

The ZIP code areas of Montgomery County add up to about 1,004 square miles of land (2,600 sq km) as the Census Bureau draws them. The largest is 77316 (Montgomery), with 129 square miles.

Places with more than one code here: Conroe (8 codes), Spring (5 codes), Magnolia (3 codes).

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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