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2 days ago · See a county map of Illinois on Google Maps with this free, interactive map tool. This Illinois county map shows county borders and also has options to show county name labels, overlay city limits and townships and more. To do a county lookup by address, type the address into the “Search places” box above the map.
- Does Google Maps show Illinois counties?This Illinois county lines map tool shows Illinois county lines on Google Maps. You can also show county name labels on the map by checking the box...
- Why might I need to know the Illinois county for a given place or address?You might need to know the Illinois county for an address to: - determine applicable laws or regulations based on county jurisdiction - determine w...
- How do I view an interactive map of Illinois county lines or county boundaries?This Illinois County Boundary Lines map tool shows Illinois county lines on Google Maps. Other tools on this website also show city limits, townshi...
- How do I find a Illinois county by address?To find the Illinois county for an address, type the address in the 'Search places' box above this interactive Illinois county finder map. the Illi...
- How do I find out what Illinois county I live in?To find your Illinois county using your address, type your address into the 'Search places' box above this map.
Of the 58 counties in California, 14 are governed under a charter. They are Alameda, Butte, El Dorado, Fresno, Los Angeles, Orange, Placer, Sacramento, San Bernardino, San Diego, San Francisco, San Mateo, Santa Clara, and Tehama. [6] Nine counties in California are named for saints, tied with Louisiana for the largest number.
CountyFips Code [8]County Seat [9]Est. [9]1853186418541850- Map of Illinois Counties
- Largest Counties in Illinois by Population
- Smallest Counties in Illinois by Population
- Notable Illinois Counties
Below is a map of the 102 counties of Illinois(you can click on the map to enlarge it and to see the major city in each county). Click on any of the counties on the map to see its population, economic data, time zone, and zip code (the data will appear below the map). Data is sourced from the US Census 2021.
Cook County
Cook County is the most populous county in Illinois and an epicenter of culture, commerce, and history. Established in 1831, it was named after Daniel Cook, one of the earliest advocates for Illinois statehood. It is located in the northeastern part of the state, bordering Lake Michigan and Indiana. Chicago, the county seat and the third-largest city in the US, offers a mix of architectural wonders, arts, global cuisines, and a distinctive music scene. The city is home to landmarks like Willi...
DuPage County
DuPage County, also located in northeastern Illinois, stands as another heavily populated and significant hub in the state. Founded in 1839, it was named after the DuPage River, which meanders through several of its communities. With Wheaton as its county seat, DuPage boasts a blend of urban sophistication and suburban charm. Located adjacent to Cook County, DuPage is an economically important hub, as it houses numerous corporate headquarters, leading businesses, and educational institutions....
Lake County
Lake County, nestled in the northeasternmost corner of Illinois, is unique for its natural beauty, historical significance, and economic impact. It’s also the third-most populous county in the state. Established in 1839, its identity is intrinsically linked to Lake Michigan, which forms its eastern boundary, influencing both its geography and its cultural evolution. One of Lake County’s defining features is its commitment to preserving the environment. The Lake County Forest Preservesencompas...
Hardin County
Hardin County, positioned in the southeastern corner of Illinois, has the smallest population of any county in the state. Established in 1839, the county was named after Hardin County in Kentucky, which was named in honor of Colonel John Hardin, an early pioneer. One of the county’s most striking features is its proximity to the Ohio River. This majestic river, which forms the county’s eastern boundary, has played a pivotal role in its history, both as a transportation route and as a source o...
Pope County
The second-least populous county in Illinois is Pope County, located in the southern part of the state. It was created in 1816and named in honor of Nathaniel Pope, a distinguished figure in the early days of Illinois Territory. The Ohio River forms a part of Pope County’s eastern boundary, offering both picturesque views and a location for outdoor recreation. The waterway has played a crucial role in shaping the county’s history and continues to influence its culture and economy. Golconda, th...
Calhoun County
Calhoun County, situated in the southwestern part of Illinois, offers a unique landscape characterized by its strategic location between the Mississippi and Illinois Rivers. Formed in 1825, the county was named after John C. Calhoun, the seventh Vice President of the United States. Known for its natural beauty and abundant waterways, Calhoun County presents a compelling attraction for those interested in outdoor recreational activities such as fishing, boating, and hiking. It’s also possible...
Champaign County
Another notable county in Illinois is Champaign County, situated in the east-central part of the state. Founded in 1833, the county was named after Champaign County in Ohio. Urbana serves as the county seat and, along with Champaign, forms the Champaign-Urbana Metropolitan Area, often referred to as the “twin cities.” One of the most defining features of Champaign County is the presence of the University of Illinois Urbana-Champaign. This prestigious institution has a significant impact on th...
Madison County
Madison County is located in the southwestern part of Illinois and is part of the St. Louis Metropolitan Area. Established in 1812, the county was named after James Madison, the fourth President of the United States. Edwardsville serves as the county seat and is one of the oldest cities in the state. Economically, Madison County is diverse and robust. It boasts a mix of industries including manufacturing, healthcare, logistics, and services. The county benefits from its proximity to St. Louis...
Sangamon County
Sangamon County, located in central Illinois, is perhaps most renowned as the home of Springfield, the state capital. Established in 1821, the county has played a pivotal role in American and Illinois history. Springfield is famously linked with Abraham Lincoln, the 16th President of the United States, who lived there for over two decades. The Abraham Lincoln Presidential Library and Museum, along with Lincoln’s home and his final resting place at Oak Ridge Cemetery, are major tourist attract...
Illinois Counties - Cities, Towns, Neighborhoods, Maps & Data. There are 102 counties in Illinois. All counties are functioning governmental units; each is governed by a board with between 5 and 29 members. There are 1,710 county subdivisions in Illinois known as minor civil divisions (MCDs); 85 counties have functioning, but not necessarily ...
438| 2021-2022 ILLINOIS BLUE BOOK. Map of Illinois Counties. Showing county seats Number of counties: 102. JO DAVIESS Galena STEPHENSON Freeport WINNEBAGO Rockford BOONE McHENRY Belvidere Woodstock LAKE Waukegan COOK DuPAGE Chicago Wheaton WILL Joliet KANKAKEE Kankakee IROQUOIS Watseka Rock Island ROCK ISLAND MERCER Aledo WARREN Oquawka SO ...
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There are 102 counties in Illinois. The most populous of these is Cook County, the second-most populous county in the United States and the home of Chicago, while the least populous is Hardin County. The largest by land area is McLean County, while the smallest is Putnam County. Illinois's FIPS state code is 17 and its postal abbreviation is IL.
5 days ago · About the map. Our Illinois county map displays its 102 counties. Illinois’ high number of counties ranks 7th highest in the United States. It falls behind just Texas, Georgia, Virginia, Kentucky, Missouri, and Kansas.
