A blank map of Ohio and adjacent state's counties.  Every county's object in this SVG has its  FIPS code in the object id field, with the county name and 2-letter postal state abbreviation in the label field.  In cases where there is a county in a state that also has a county-equivalent city of the same name, the word "County" is appended to the county name.  In all other cases, "County", "Parish", "Borough", or other county equivalent is omitted from the name.  As SVG files are easily parseable and readable text files, it is fairly simple to write a program or script that creates a copy of this map with the color of certain counties based on some datum, such as population density, e.g.  Much such data includes FIPS codes, which provides an easy and fool-proof way to identify the associated SVG object in the map.
File:USA Counties with FIPS and names.svg
File:USA Counties with FIPS and names.svg: *File:USA Counties with names.svg: User:Mr. Matté
derivative work Kbh3rd
derivative work: GeraldEdwardButler