【结好时间】天津市与洛杉矶郡于 2010 年 9 月 13 日签署了友好交流与合作意向书。
【城市特色】洛杉矶郡位于加利福尼亚州西部，包含 88 个城市，其中较大的城市包括洛杉矶、长滩、格兰岱尔、圣塔克拉利塔、波莫纳等，是美国第一大郡，经济实力雄厚，是美文化、科学、技术、国际贸易和高等教育中心之一。
【Established Date】Tianjin and Los Angeles County signed a letter of intent for friendly exchange and cooperation relations on September 13, 2010.
【City Characteristics】Los Angeles County is located in the western part of California, administrating 88 cities, among which the larger cities include Los Angeles, Long Beach, Glendale, Santa Clarita, Pomona, etc. It is the largest county in the United States with strong economic strength and is also one of the centers of American culture, science, technology, international trade and higher education.