| Census Data for McKinley ParkAs far as we can tell, McKinley Park has not been included in past Census counts, so there is no population information for this community. While we don't have census information for McKinley Park, you might be interested in some nearby communities where we do: Hartford County ...McKinley Park is located in Hartford County<1>. For more information, please visit our Census Page for Hartford County. Miscellaneous Information for McKinley Park ...The Federal government has assigned various identifying codes to each community, county and state. At one time or another, the US Census Bureau has used one (or more) of the following identifiers when referring to either Hartford County or the community of McKinley Park: 
 
 For more information about the various Federal identification codes, please visit our Misc Page for McKinley Park. Footnotes ...
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