Welcome to the National City Demographics page.  Here you will find information about the National City population broken down by age group.  You will also find data about the number of households in National City and the median age of residents.  The Temperature graph below identifies which months have the highest and lowest temperature in National City.  The Weather Risk graph provides an estimate of the risk certain weather-related events occurring in National City as compared to the national average.  These weather-related events include: hurricane, earthquake, tornado, wind, hail and severe weather.  The National City Employment and Finance graphs provide information about two areas. The Employment graph presents data about the percentage of workers in National City who are employed in occupations commonly classified as “white collar” or “blue collar.” The Finance graph presents data showing the percentage of National City households at various income levels, as well as the median household income of National City residents. The Crime Index suggests the risk of certain types of crime occurring in National City as compared to the national average.