The resident population of South Padre Island in the 2010 Census was 2,816. Estimated number of inhabitants in 2008 is 5,900. Due to the large number of visitors, the resident population is only a small percentage of the total number of people who are in the City of South Padre Island at any given time. In the Resort Market Analysis produced by Aaron Economic Consulting in 2014, the annual visitation for South Padre Island was just over 4.3 million visits which equals an average daily population of approximately 11,780. South Padre Island’s population has a high median age of 59.7 as compared to 27 for Cameron County. The Rio Grande Valley area has been one of the fastest growing areas in the nation, with a 63 percent increase in population since 1990.

Population Trends
  1990 2000 2010
South Padre Island 1,667 2,422 2,816
Port Isabel 4,467 4,865 5,006
Cameron County 260,120 335,227 406,220
Rio GrandeValley 701,888 978,371 1,264,091