What is the size of one section of land?

The size of one section of land is 640 acres, which is defined in the context of the Public Land Survey System (PLSS) used in the United States. This system divides land into townships, with each township containing 36 sections. Each section is typically one square mile, which converts to 640 acres (since one square mile equals 640 acres). This standard measurement is essential for understanding land measurement and property assessments, making it fundamental knowledge in fields related to real estate, land use planning, and taxation. Thus, the answer that identifies the size of one section as 640 acres is correct.