Wikipedia:WikiProject U.S. counties/County7

This creates an entry in a table of counties in the United States where there are 6 columns of information, including an automatically generated map. It lso applies the template to the Population parameter. If the area (in square miles) is given as a raw number, then it will be converted to square kilometers and formatted using. See WikiProject U.S. counties/county lists for similar templates.

Usage:  

Where:
 * is the name of the county without the word "County" as used in the link, e.g. Los Angeles County, California or Arlington County, Virginia you would use Name=Los Angeles or Name=Arlington etc.
 * is the two-digit FIPS state code of the named state, e.g. N=04 for Arizona, N=10 for Delaware, etc. The name of the state will be composed from this number.
 * is the three-digit fips county code for that county, e.g. N=001 or N=037 etc.
 * is the County Seat. The state's name is inluced automaticaluy in the wikilink.
 * is the year the county was formed, e.g. Year=1997
 * is the explanation of why the county was formed, e.g. History=from Hazard county
 * is the etymology, or whom the county was named for, e.g. For=named for Alex Hazard
 * is the population of the county. This must be given as a raw number without any commas, as the etmplate formats this value using the nts template.
 * is the total area of the county:
 * If this is a raw number, then the template will assume it is the area in square miles, format it with, and also give the area in square kilometers.
 * If this isn't a raw number, then then the value is displayed unaltered

Optional Parameters:
 * defaults to County; you set it if the link and name is something else such as Type=Parish
 * results in no addition being apended to the county name . (e.g. for City and County of Honolulu)
 * is used to insert the county/borough/parish seat after the name. It will have "(" before and ")" after and the state will be computed and inserted from the N= value.  For example, for Clark County, Nevada, use Seat=Las Vegas and if N= has the correct value for Nevada, the link will correctly include it.  Same for other states, of course.  It correctly renders to null if empty.
 * is used when a county doesn't have a seat. The value of this parameter is displayed instead.
 * is used when 150px produces a map that is too big. Example:
 * is the name of the image to used for the county map when the autmatically generated version doesn't work. The  prefix must not be included. Default size is 150px.