{"id":2685,"date":"2023-04-12T17:12:00","date_gmt":"2023-04-12T17:12:00","guid":{"rendered":"https:\/\/townsvillages.com\/us\/?p=2685"},"modified":"2026-08-08T15:49:25","modified_gmt":"2026-08-08T15:49:25","slug":"dekalb-county-illinois","status":"publish","type":"post","link":"https:\/\/townsvillages.com\/us\/dekalb-county-illinois\/","title":{"rendered":"DeKalb County, Illinois"},"content":{"rendered":"<p>DeKalb County is a county in Illinois, United States, about 65 miles west of Chicago. It had a<br \/>\npopulation of 100,420 at the 2020 census, an estimated 101,835 by 2025, and covers 635 square<br \/>\nmiles (1,640 km2) centred near 41&deg;53&prime;N 88&deg;46&prime;W.<\/p>\n<p>Sycamore is the county seat; its postal code is 60178. The county holds 4 cities, 1 town and 9<br \/>\nvillages across 19 townships, and it runs on Central Time. Its FIPS code is 17037.<\/p>\n<h2>Towns &amp; Villages in DeKalb County<\/h2>\n<p>DeKalb County has 30 named places on record: 4 cities, 1 town, 9 incorporated villages and 16<br \/>\nunincorporated communities with no local government of their own. CDP stands for census<br \/>\ndesignated place; Unincorp. covers crossroads, rural hamlets and mobile-home parks with no formal<br \/>\nboundary.<\/p>\n<div class=\"tv-table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Place<\/th>\n<th>Type<\/th>\n<th>Township<\/th>\n<th>Pop.<\/th>\n<th>ZIP<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DeKalb<\/td>\n<td>City<\/td>\n<td>DeKalb<\/td>\n<td>40,290<\/td>\n<td>60115<\/td>\n<\/tr>\n<tr>\n<td>Sycamore<\/td>\n<td>City &middot; seat<\/td>\n<td>Sycamore<\/td>\n<td>18,577<\/td>\n<td>60178<\/td>\n<\/tr>\n<tr>\n<td>Sandwich<\/td>\n<td>City<\/td>\n<td>Sandwich<\/td>\n<td>7,221<\/td>\n<td>60548<\/td>\n<\/tr>\n<tr>\n<td>Genoa<\/td>\n<td>City<\/td>\n<td>Genoa<\/td>\n<td>5,298<\/td>\n<td>60135<\/td>\n<\/tr>\n<tr>\n<td>Cortland<\/td>\n<td>Town<\/td>\n<td>Cortland<\/td>\n<td>4,398<\/td>\n<td>60112<\/td>\n<\/tr>\n<tr>\n<td>Somonauk<\/td>\n<td>Village<\/td>\n<td>Somonauk<\/td>\n<td>1,786<\/td>\n<td>60552<\/td>\n<\/tr>\n<tr>\n<td>Kirkland<\/td>\n<td>Village<\/td>\n<td>Franklin<\/td>\n<td>1,650<\/td>\n<td>60146<\/td>\n<\/tr>\n<tr>\n<td>Maple Park<\/td>\n<td>Village<\/td>\n<td>South Grove<\/td>\n<td>1,433<\/td>\n<td>60151<\/td>\n<\/tr>\n<tr>\n<td>Waterman<\/td>\n<td>Village<\/td>\n<td>Paw Paw<\/td>\n<td>1,433<\/td>\n<td>60556<\/td>\n<\/tr>\n<tr>\n<td>Malta<\/td>\n<td>Village<\/td>\n<td>Malta<\/td>\n<td>1,143<\/td>\n<td>60150<\/td>\n<\/tr>\n<tr>\n<td>Kingston<\/td>\n<td>Village<\/td>\n<td>Kingston<\/td>\n<td>1,108<\/td>\n<td>60145<\/td>\n<\/tr>\n<tr>\n<td>Hinckley<\/td>\n<td>Village<\/td>\n<td>Squaw Grove<\/td>\n<td>2,006<\/td>\n<td>60520<\/td>\n<\/tr>\n<tr>\n<td>Shabbona<\/td>\n<td>Village<\/td>\n<td>Shabbona<\/td>\n<td>863<\/td>\n<td>60550<\/td>\n<\/tr>\n<tr>\n<td>Lee<\/td>\n<td>Village<\/td>\n<td>Victor<\/td>\n<td>313<\/td>\n<td>60530<\/td>\n<\/tr>\n<tr>\n<td>Fairdale<\/td>\n<td>Unincorp.<\/td>\n<td>Franklin<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Esmond<\/td>\n<td>Unincorp.<\/td>\n<td>Cortland<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Shabbona Grove<\/td>\n<td>Unincorp.<\/td>\n<td>Shabbona<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Charter Grove<\/td>\n<td>Unincorp.<\/td>\n<td>Clinton<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Clare<\/td>\n<td>Unincorp.<\/td>\n<td>Clinton<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Afton Center<\/td>\n<td>Unincorp.<\/td>\n<td>Afton<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Colvin Park<\/td>\n<td>Unincorp.<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Elva<\/td>\n<td>Unincorp.<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Five Points<\/td>\n<td>Unincorp.<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Franks<\/td>\n<td>Unincorp.<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>McGirr<\/td>\n<td>Unincorp.<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>New Lebanon<\/td>\n<td>Unincorp.<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Rollo<\/td>\n<td>Unincorp.<\/td>\n<td>Malta<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Wilkinson<\/td>\n<td>Unincorp.<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Edgebrook MH Park<\/td>\n<td>Unincorp.<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<tr>\n<td>Evergreen Village MH Park<\/td>\n<td>Unincorp.<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<td>&mdash;<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>Three places on this list straddle county lines. Lee sits on the DeKalb&mdash;Lee County line,<br \/>\nwith its main street, Viking Vie, following the county boundary itself. Maple Park splits between<br \/>\nDeKalb and Kane counties &mdash; most of its land is on the DeKalb side, but most of its 1,433<br \/>\nresidents live across the line in Kane County. Somonauk splits the other way: about 92 percent of<br \/>\nits residents live in DeKalb County, with a small share across the line in LaSalle County. Sandwich<br \/>\nalso reaches into Kendall County, though its 7,221 residents are overwhelmingly counted in DeKalb.<\/p>\n<h2>Townships<\/h2>\n<p>DeKalb County has 19 civil townships. The table below lists the townships that anchor an<br \/>\nincorporated place above; the remaining townships (Clinton, Mayfield, Milan, Pierce, South Grove<br \/>\nwhere unlisted, and Squaw Grove where unlisted) are rural and contain no incorporated place of<br \/>\ntheir own.<\/p>\n<div class=\"tv-table-scroll\">\n<table>\n<thead>\n<tr>\n<th>Township<\/th>\n<th>Main settlement<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>DeKalb<\/td>\n<td>DeKalb<\/td>\n<\/tr>\n<tr>\n<td>Sycamore<\/td>\n<td>Sycamore<\/td>\n<\/tr>\n<tr>\n<td>Sandwich<\/td>\n<td>Sandwich<\/td>\n<\/tr>\n<tr>\n<td>Genoa<\/td>\n<td>Genoa<\/td>\n<\/tr>\n<tr>\n<td>Cortland<\/td>\n<td>Cortland, Esmond<\/td>\n<\/tr>\n<tr>\n<td>Somonauk<\/td>\n<td>Somonauk<\/td>\n<\/tr>\n<tr>\n<td>Franklin<\/td>\n<td>Kirkland, Fairdale<\/td>\n<\/tr>\n<tr>\n<td>South Grove<\/td>\n<td>Maple Park<\/td>\n<\/tr>\n<tr>\n<td>Paw Paw<\/td>\n<td>Waterman<\/td>\n<\/tr>\n<tr>\n<td>Malta<\/td>\n<td>Malta, Rollo<\/td>\n<\/tr>\n<tr>\n<td>Kingston<\/td>\n<td>Kingston<\/td>\n<\/tr>\n<tr>\n<td>Squaw Grove<\/td>\n<td>Hinckley<\/td>\n<\/tr>\n<tr>\n<td>Shabbona<\/td>\n<td>Shabbona, Shabbona Grove<\/td>\n<\/tr>\n<tr>\n<td>Victor<\/td>\n<td>Lee<\/td>\n<\/tr>\n<tr>\n<td>Clinton<\/td>\n<td>Charter Grove, Clare<\/td>\n<\/tr>\n<tr>\n<td>Afton<\/td>\n<td>Afton Center<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<h2>ZIP Codes<\/h2>\n<ul>\n<li>60115 &mdash; DeKalb (also serves the Northern Illinois University campus)<\/li>\n<li>60178 &mdash; Sycamore<\/li>\n<li>60548 &mdash; Sandwich<\/li>\n<li>60135 &mdash; Genoa<\/li>\n<li>60112 &mdash; Cortland<\/li>\n<li>60552 &mdash; Somonauk<\/li>\n<li>60146 &mdash; Kirkland<\/li>\n<li>60151 &mdash; Maple Park<\/li>\n<li>60556 &mdash; Waterman<\/li>\n<li>60150 &mdash; Malta<\/li>\n<li>60145 &mdash; Kingston<\/li>\n<li>60520 &mdash; Hinckley<\/li>\n<li>60550 &mdash; Shabbona<\/li>\n<li>60530 &mdash; Lee<\/li>\n<\/ul>\n<p>Fairdale, Esmond, Shabbona Grove, Charter Grove, Clare, Afton Center, Colvin Park, Elva, Five<br \/>\nPoints, Franks, McGirr, New Lebanon, Rollo, Wilkinson and the two mobile-home parks have no ZIP<br \/>\ncode of their own; mail there is delivered under the nearest incorporated town&rsquo;s code.<\/p>\n<h2>Geography<\/h2>\n<p>DeKalb County sits in Illinois&rsquo; north-central till plains, a flat expanse of glacial soil<br \/>\nbuilt by the Wisconsin glaciation. Of its 635 square miles, about 631 are land and roughly 3.4 are<br \/>\nwater &mdash; under one percent, since the county has no large natural lake. The South Branch of<br \/>\nthe Kishwaukee River runs through DeKalb and Sycamore, and Shabbona Lake, an artificial reservoir<br \/>\nin Shabbona Township, is the county&rsquo;s biggest body of water and anchors Shabbona Lake State<br \/>\nPark.<\/p>\n<p>Winnebago County lies to the north, Boone County to the northeast, McHenry County to the east,<br \/>\nKane County to the southeast, Kendall County to the south-southeast, LaSalle County to the south,<br \/>\nLee County to the southwest, and Ogle County to the west. Of these eight neighbors, live pages<br \/>\nexist for four: <a href=\"https:\/\/townsvillages.com\/us\/kane-county\/\">Kane County<\/a>, <a\nhref=\"https:\/\/townsvillages.com\/us\/lasalle-county\/\">LaSalle County<\/a>, <a\nhref=\"https:\/\/townsvillages.com\/us\/ogle-county\/\">Ogle County<\/a> and <a\nhref=\"https:\/\/townsvillages.com\/us\/winnebago-county\/\">Winnebago County<\/a>. Boone, McHenry,<br \/>\nKendall and Lee counties have no matching Illinois page on this site yet.<\/p>\n<h2>Demographics<\/h2>\n<p>DeKalb County had a population of 100,420 at the 2020 census, and the latest estimate puts the<br \/>\ncounty near 101,835 residents. DeKalb and Sycamore are by far the two largest communities, with<br \/>\nDeKalb alone holding roughly 40 percent of the county&rsquo;s population. Median household income<br \/>\nruns about $70,724 (2024 estimate), below Illinois&rsquo; statewide figure of $80,306 (2023 ACS).<br \/>\nPopulation density works out to about 159 people per square mile of land. The county has been a<br \/>\nDemocratic stronghold in presidential elections since 2008, a pattern common to counties anchored<br \/>\nby a large public university.<\/p>\n<h2>Economy &amp; Local Life<\/h2>\n<p>Health care and social assistance employs the most workers in the county, about 7,011 people,<br \/>\nfollowed by educational services at 6,637 and manufacturing at 6,196. Northern Illinois University<br \/>\nin DeKalb, with roughly 20,000 students, is the county&rsquo;s largest single employer and the<br \/>\nthird-largest university campus in Illinois. Northwestern Medicine operates a hospital in DeKalb,<br \/>\nand large distribution and manufacturing operations for Target, 3M, Nestl&eacute; and Ferrara Candy<br \/>\nCompany run warehouses in the city. Kishwaukee College, a community college founded in 1968, sits<br \/>\na mile west of Malta and serves the county alongside NIU. Agriculture remains central outside the<br \/>\nDeKalb-Sycamore core &mdash; the county ranks as the second-largest hog-producing county in<br \/>\nIllinois and is credited as the birthplace of the Farm Bureau movement. The Sandwich Fair, founded<br \/>\nin 1858 as a DeKalb County livestock show, is among the oldest continuously running county fairs<br \/>\nin Illinois and can draw crowds over 200,000 on its busiest day each September. Sycamore holds its<br \/>\nown Pumpkin Festival every October, established in 1962.<\/p>\n<h2>History<\/h2>\n<p>The Illinois General Assembly formed DeKalb County on 4 March 1837, carving it out of Kane<br \/>\nCounty. It was named for Johann de Kalb, a Bavarian-born officer who served as a major general in<br \/>\nthe Continental Army during the American Revolutionary War and died of wounds at the Battle of<br \/>\nCamden in 1780. Sycamore was named for the sycamore trees along the Kishwaukee River and became<br \/>\nthe county seat soon after the county&rsquo;s formation.<\/p>\n<p>DeKalb&rsquo;s biggest contribution to American agriculture came in 1874, when local farmer<br \/>\nJoseph Glidden patented the modern double-strand barbed wire design in the city, work that helped<br \/>\nfence the open range across the West. DeKalb later became a center for hybrid corn development<br \/>\nstarting in 1934, under the DeKalb Agricultural Association, whose winged-ear-of-corn logo became<br \/>\na familiar sight on Midwestern farms.<\/p>\n<h2>Getting There<\/h2>\n<p>Interstate 88 crosses the county&rsquo;s southern half through Sycamore. US Route 30 and US<br \/>\nRoute 34 both run through the county, along with several Illinois state highways connecting DeKalb,<br \/>\nSycamore, Genoa and Sandwich.<\/p>\n<ul>\n<li>Rockford &mdash; about 30 miles northwest<\/li>\n<li>Chicago &mdash; about 65 miles east<\/li>\n<li>Aurora &mdash; about 25 miles southeast<\/li>\n<li>Rochelle &mdash; about 15 miles southwest<\/li>\n<\/ul>\n<p>Chicago Rockford International Airport, about 30 miles northwest of Sycamore, and O&rsquo;Hare<br \/>\nInternational Airport, about 65 miles east, are the nearest major commercial airports. DeKalb<br \/>\nTaylor Municipal Airport handles general aviation. Amtrak does not serve DeKalb County directly;<br \/>\nthe nearest station is in Mendota, in neighboring LaSalle County.<\/p>\n<h2>Frequently Asked Questions<\/h2>\n<p><strong>Where is DeKalb County located?<\/strong><br \/>\nIt sits in north-central Illinois, about 65 miles west of Chicago, bordered by Winnebago, Boone,<br \/>\nMcHenry, Kane, Kendall, LaSalle, Lee and Ogle counties.<\/p>\n<p><strong>What is the population of DeKalb County?<\/strong><br \/>\n100,420 at the 2020 census, with a 2025 estimate near 101,835.<\/p>\n<p><strong>How big is DeKalb County?<\/strong><br \/>\n635 square miles (1,640 km2), of which about 631 square miles are land.<\/p>\n<p><strong>What is the county seat of DeKalb County?<\/strong><br \/>\nSycamore is the county seat; DeKalb, home to Northern Illinois University, is the largest city.<\/p>\n<p><strong>How many towns and villages are in DeKalb County?<\/strong><br \/>\nFour cities &mdash; DeKalb, Sycamore, Sandwich and Genoa &mdash; one town (Cortland), nine<br \/>\nincorporated villages, and 16 unincorporated communities and mobile-home parks.<\/p>\n<p><strong>What ZIP codes does DeKalb County use?<\/strong><br \/>\n60115 for DeKalb, 60178 for Sycamore, 60548 for Sandwich, 60135 for Genoa, and separate codes for<br \/>\neach of the county&rsquo;s villages, listed above.<\/p>\n<p><strong>What is DeKalb County known for?<\/strong><br \/>\nJoseph Glidden&rsquo;s 1874 barbed-wire patent, Northern Illinois University, and being the<br \/>\nbirthplace of the Farm Bureau movement.<\/p>\n<p>More counties in this state: <a href=\"https:\/\/townsvillages.com\/us\/category\/illinois\/\">Towns and villages in Illinois<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>DeKalb County is a county in Illinois, United States, about 65 miles west of Chicago. It had a population of 100,420 at the 2020 census, an estimated 101,835 by 2025, and covers 635 square miles (1,640 km2) centred near 41&deg;53&prime;N 88&deg;46&prime;W. Sycamore is the county seat; its postal code is 60178. The county holds 4 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Towns & Villages in DeKalb County, Illinois","_seopress_titles_desc":"All 30 places in DeKalb County, Illinois - type, township, population and ZIP for each, plus Glidden's barbed wire and NIU history.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[20],"tags":[6],"class_list":["post-2685","post","type-post","status-publish","format-standard","category-illinois","tag-towns-and-cities","entry"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/posts\/2685","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/comments?post=2685"}],"version-history":[{"count":2,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/posts\/2685\/revisions"}],"predecessor-version":[{"id":9570,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/posts\/2685\/revisions\/9570"}],"wp:attachment":[{"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/media?parent=2685"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/categories?post=2685"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/townsvillages.com\/us\/wp-json\/wp\/v2\/tags?post=2685"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}