Founded in 1824, Clay County is one of 102 counties in the state of Illinois. Historically, Clay County was formed from Wayne, Lawrence, Fayette, and Crawford County. The city of Louisville is the county seat. With FIPS code of 25, Clay County has a population of 13,143 and area of 468 square miles (1,212 km2)….
Category: Guide to Illinois
Illinois – Before the Indians, the state was called Land of Men or Land of Warriors. He became the 21st state in the United States in 1818. The state was discovered in 1673 by the French Louis Jolliet and Father Jacques Marquette. Her compatriot La Salle built Fort St. Louis in 1692. In 1763 the state was ceded to England and in 1778 it was annexed to the United States. The capital, Springfield is a provincial town unlike Chicago one of the most popular travel destinations. US President Abraham Lincoln moved to Illinois in 1830 and gave the state the nickname “Lincoln Land”. Illinois has approximately 11 million inhabitants. Pigs, corn, milk and coal are the state’s main products.
Cities and Towns in Clark County, Illinois
Founded in 1819, Clark County is one of 102 counties in the state of Illinois. Historically, Clark County was formed from Crawford County. The city of Marshall is the county seat. With FIPS code of 23, Clark County has a population of 15,300 and area of 501 square miles (1,298 km2). List of all cities…
Cities and Towns in Christian County, Illinois
Founded in 1839, Christian County is one of 102 counties in the state of Illinois. Historically, Christian County was formed from Sangamon County. The city of Taylorville is the county seat. With FIPS code of 21, Christian County has a population of 33,662 and area of 709 square miles (1,836 km2). List of all cities…
Cities and Towns in Champaign County, Illinois
Founded in 1833, Champaign County is one of 102 counties in the state of Illinois. Historically, Champaign County was formed from Vermilion County. The city of Urbana is the county seat. With FIPS code of 19, Champaign County has a population of 205,943 and area of 996 square miles (2,580 km2). List of all cities…
Cities and Towns in Cass County, Illinois
Founded in 1837, Cass County is one of 102 counties in the state of Illinois. Historically, Cass County was formed from Morgan County. The city of Virginia is the county seat. With FIPS code of 17, Cass County has a population of 12,773 and area of 375 square miles (971 km2). List of all cities…
Cities and Towns in Carroll County, Illinois
Founded in 1839, Carroll County is one of 102 counties in the state of Illinois. Historically, Carroll County was formed from Jo Daviess. The city of Mount Carroll is the county seat. With FIPS code of 15, Carroll County has a population of 15,698 and area of 445 square miles (1,153 km2). List of all…
Cities and Towns in Calhoun County, Illinois
Founded in 1825, Calhoun County is one of 102 counties in the state of Illinois. Historically, Calhoun County was formed from Pike County. The city of Hardin is the county seat. With FIPS code of 13, Calhoun County has a population of 4,369 and area of 253 square miles (655 km2). List of all cities…
Cities and Towns in Bureau County, Illinois
Founded in 1837, Bureau County is one of 102 counties in the state of Illinois. Historically, Bureau County was formed from Putnam County. The city of Princeton is the county seat. With FIPS code of 11, Bureau County has a population of 32,883 and area of 869 square miles (2,251 km2). List of all cities…
Cities and Towns in Brown County, Illinois
Founded in 1839, Brown County is one of 102 counties in the state of Illinois. Historically, Brown County was formed from Schuyler County. The city of Mount Sterling is the county seat. With FIPS code of 9, Brown County has a population of 6,421 and area of 305 square miles (790 km2). List of all…
Cities and Towns in Boone County, Illinois
Founded in 1837, Boone County is one of 102 counties in the state of Illinois. Historically, Boone County was formed from Winnebago County. The city of Belvidere is the county seat. With FIPS code of 7, Boone County has a population of 53,159 and area of 280 square miles (725 km2). List of all cities…
Cities and Towns in Bond County, Illinois
Founded in 1817, Bond County is one of 102 counties in the state of Illinois. Historically, Bond County was formed from Crawford County, Edwards County, and Madison County. The city of Greenville is the county seat. With FIPS code of 5, Bond County has a population of 16,596 and area of 380 square miles (984…
Cities and Towns in Alexander County, Illinois
Founded in 1819, Alexander County is one of 102 counties in the state of Illinois. Historically, Alexander County was formed from Union County. The city of Cairo is the county seat. With FIPS code of 3, Alexander County has a population of 5,030 and area of 236 square miles (611 km2). List of all cities…
Cities and Towns in Adams County, Illinois
Founded in 1825, Adams County is one of 102 counties in the state of Illinois. Historically, Adams County was formed from Pike County. The city of Quincy is the county seat. With FIPS code of 1, Adams County has a population of 64,954 and area of 855 square miles (2,214 km2). List of all cities…
Illinois Holidays
Illinois State Holidays Searching for the public holidays in Illinois? Most public holidays in Illinois are treated like Sundays. This means that most of the Illinois employees have a day off and all schools are closed on these office holidays. If you are planning a trip to Illinois and want to know what the national…
List of Cities and Towns in Illinois
There are a total of 1,280 towns and cities in the state of Illinois. Top 10 biggest cities by population are Chicago, Aurora, Rockford, Joliet, Naperville, Springfield, Peoria, Elgin, Waukegan, and Cicero. Below please see all Illinois cities and towns which are listed in alphabetical order. Cities in Illinois Abingdon, IL Addieville, IL Addison, IL…
List of All Counties in Illinois
There are a total of 102 counties in the state of Illinois. Among them, St. Clair County is the oldest one (established in 1790) while Douglas County is the youngest (established in 1859). With population of 5,194,675, Cook County is the most populated. The biggest county by land area is McLean County (3,067 km2) and…
Illinois Zip Codes
As of 2020, the state of Illinois has a total of 1608 postal codes. In the table below, you can see all Illinois zip codes listed by city, town and village as well as county affiliated. With 934 cities (and towns) and 102 counties (and county-equivalents), Illinois is the 6th largest state by population (12,801,539)…
Illinois Airports
As of 2019, there are 45 airports throughout the state of Illinois according to IATA and ICAO. Through the table below, you can find name of each airport, its abbreviation, city location, and size. Airports in Illinois are listed in alphabetical order. Please note that some airports serve internationally, while the other only serve domestically….