太阳带（Sunbelt）是指美国南部北纬37度以南的地区，这些地区的日照时间较长。大致包括了以下地区。

这些地区在过去农业发达，近年石油和电子产业快速发展。除了经济之外，在政治上也发展为重要地区。加上气候温暖适合居住，也有很多来自美国北部的人移居这里。太阳地带的人口增长速度也高于美国平均值。

The Sun Belt is a region of the United States generally considered to stretch across the Southeast and Southwest (the geographic southern United States). Another rough boundary of the region is the area south of the 36th parallel, north latitude. The main defining feature of the Sun Belt is its warm climate with extended summers and brief, relatively pleasant winters. Within the Sun Belt areas of the U.S., deserts/semi-deserts (California, Nevada, Arizona, New Mexico, Oklahoma and Texas), Mediterranean (California), and humid subtropical (Oklahoma, Texas, Louisiana, Mississippi, Alabama, Florida, Georgia, South Carolina, and North Carolina) climates can be found and tropical climates can be found in south Florida.