长堤市（long beach) 是洛杉矶西南部太平洋边上的一个港口城市。这个城市是洛杉矶地区第二，加州第七大城市。在2010年的人口普查中，long beach 的总人口是46万2千人。人口密度是每平方英里9千1百人（每平方公里3千5百人）。白人21万3千人（46.1%），非裔美国人6万3千人（13.5%), 亚裔5万9千人（12.9%), 其他族裔总和占27.5%。这个城市的墨西哥后裔占总人口的32.9%。西班牙裔或拉丁裔人口18万8千（40.1%).
加州州立大学 Cal State Long Beach 坐落在这个城市的东部。这个大学有很多很好的专业，加上低廉的学费，为越来越多的人所热爱。这个大学曾经被US news 评为性价比最好的学校。
Long Beach 港口是美国第二最忙碌的集装箱码头，也是世界上最大的货运港口之一。由于这里海底和海岸都有油井，这个城市也拥有大量的石油工业。
Long Beach is a city in Los Angeles County in Southern California, on the Pacific coast of the United States. The city is the 36th-largest city in the United States and the seventh-largest in California. As of 2010, its population was 462,257.
The Port of Long Beach is the United States’ second busiest container port and one of the world’s largest shipping ports. The city also maintains a large oil industry with wells located both underground and offshore. Manufacturing sectors include those in aircraft, car parts, electronic and audiovisual equipment, and home furnishings.
The 2010 United States Census reported that Long Beach had a population of 462,257. The population density was 9,191.3 people per square mile (3,548.8/km²). The racial makeup of Long Beach was 213,066 (46.1%) White, 62,603 (13.5%) Black or African American, 3,458 (0.7%) Native American, 59,496 (12.9%)Asian (4.5% Filipino, 3.9% Cambodian, 0.9% Vietnamese, 0.6% Chinese, 0.6% Japanese, 0.4% Indian, 0.4%Korean, 0.2% Thai, 0.1% Laotian, 0.1% Hmong), 5,253 (1.1%) Pacific Islander (0.8% Samoan, 0.1%Guamanian, 0.1% Tongan), 93,930 (20.3%) from other races, and 24,451 (5.3%) from two or more races.Hispanic or Latino of any race were 188,412 persons (40.8%). 32.9% of the city’s population was of Mexicanheritage. Non-Hispanic Whites were 29.4% of the population in 2010, down from 86.2% in 1970.
During 2009–2013, Long Beach had a median household income of $52,711, with 20.2% of the population living below the federal poverty line.