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Illinois's FIPS state code is 17 and its postal abbreviation is IL. What is now Illinois was claimed as part of Illinois County, Virginia, between 1778 and 1782. Modern-day county formation dates to 1790 when the area was part of the Northwest Territory; two counties—St. Clair and Knox—were created at that time.
Modern two-letter abbreviated codes for the states and territories originated in October 1963, with the issuance of Publication 59: Abbreviations for Use with ZIP Code, three months after the Post Office introduced ZIP codes in July 1963.
The FCC assigned additional numeric codes used with the EAS for territorial waters of the U.S., but these were not part of the FIPS standard. The FIPS state alpha code for each U.S. states and the District of Columbia are identical to the postal abbreviations by the United States Postal Service. From September 3, 1987, the same was true of the ...
Illinois. Kenilworth: 60043. Median household income: $212,750. Total households: 794. ... GOBankingRates also found the total number of households in each state’s top five richest zip codes ...
2 Illinois places ranked by per capita income 2007-2017. ... ZIP Code Tabulation Areas; ... United States: $27,334 $51,914 $62,982
There are generally two widely accepted versions of a postal code: a ZIP code and a ZIP + 4 code. Established in 1963, ZIP codes are the most common and recognizable postal code used by the USPS.
U.S. ZIP codes (range 96799) Andorra: 31 July 2004 AD: CCNNN Each parish now has its own post code. Angola: AO: no codes Anguilla: 9 October 2007 AI: AI-2640 Single code used for all addresses. Antigua and Barbuda: AG: no codes Argentina: 1974, modified 1999 AR: NNNN, ANNNN, ANNNNAAA NNNN, ANNNNAAA 1974–1998 NNNN, and from 1999 ANNNNAAA.
Table of United States congressional district boundary maps in the State of Illinois, presented chronologically. [7] All redistricting events that took place in Illinois from statehood in 1818 to 2013 are shown. During the periods of 1863-1873, 1893-1895, and 1903-1948, voters in Illinois elected an additional one to two at-large representatives.