Northern Illinois

Region · Illinois

Northern Illinois

Best timeApr–Oct
From you
Nearest airportRFD · 32 mi
On this page

Overview

Northern Illinois is a region of Illinois generally located immediately along and north of I-80 and outside of Chicagoland. While largely rural, it does include Rockford, the third largest city in Illinois, as well as DeKalb, home of Northern Illinois University.

Updated from Wikivoyage on 1 October 2026 · Something wrong or missing? Improve it on Wikivoyage

Plan your trip

Best time to visit & weather

Most comfortable: Apr–Oct. Summer highs reach about 86°F; winter lows dip to about 15°F. Cold months (Jan, Feb, Dec) can bring snow and ice; check road conditions. Wettest: Jun and May. (climate data from nearby Quad Cities)

Jan: 1.7 in rain1.7"Jan: high 32°F, low 15°F32°15°JanFeb: 1.8 in rain1.8"Feb: high 37°F, low 19°F37°19°FebMar: 2.6 in rain2.6"Mar: high 50°F, low 30°F50°30°MarApr: 3.8 in rain3.8"Apr: high 63°F, low 40°F63°40°AprMay: 4.7 in rain4.7"May: high 74°F, low 51°F74°51°MayJun: 5.0 in rain5"Jun: high 83°F, low 61°F83°61°JunJul: 4.2 in rain4.2"Jul: high 86°F, low 65°F86°65°JulAug: 4.0 in rain4"Aug: high 84°F, low 63°F84°63°AugSep: 3.3 in rain3.3"Sep: high 78°F, low 54°F78°54°SepOct: 2.8 in rain2.8"Oct: high 65°F, low 43°F65°43°OctNov: 2.3 in rain2.3"Nov: high 50°F, low 31°F50°31°NovDec: 2.0 in rain2"Dec: high 37°F, low 21°F37°21°Dec

Blue bars: average daily high and low (°F). Purple columns: average monthly rain and melted snow (inches).

Getting there

  • From you: to see whether to drive or fly, and how long it takes.
  • RFD Chicago Rockford International Airport, Chicago/Rockford — 32 mi away. Directions
  • MLI Quad City International Airport, Moline — 67 mi away. Directions
  • ORD Chicago O'Hare International Airport, Chicago — 72 mi away (major hub). Directions

A number of different major routes run through Northern Illinois:

Full “Get in” guide ↓

Sample 3-day trip

  1. Day 1: Ottawa — John Hossack House, Buffalo Rock State Park, Ottawa Historical and Scouting Heritage Museum.
  2. Day 2: LaSalle-Peru — I&M Canal Boat, Hegeler Carus Mansion, Wild Bill Hickok State Memorial.
  3. Day 3: Utica — La Salle County Historical Museum.

Built from the best-covered destinations in this region; open each for its own day plan.

Photos

Northern IllinoisMap of Northern Illinois

Places in Northern Illinois

Understand

Northern Illinois is generally considered to be the area of Illinois north of I-80 and outside of Chicagoland. Another way to consider Northern Illinois is by the 815 and 779 area codes. Definitions might slightly differ to include Kankakee and Grundy counties, which may also be considered part of Central Illinois.

Northwestern Illinois topography hilly with bluffs and cliffs, a stark contrast to the majority of the "Prairie State" that is mostly flat or with slightly rolling hills and farmland. This region is home to 9 of the 10 highest points in Illinois, with 8 in Jo Daviess County alone, including the highest point in Illinois, Charles Mound at 1235 ft.

Culturally, the entire region is similar to many other rust belt rural areas. Residents tend to be politically conservative.

Regions

Cities

  • Rockford - in the Rock River Valley and third-largest city in Illinois.
  • DeKalb - home to the inventor of barbed wire and to Northern Illinois University.
  • Dixon - childhood home of US President Ronald Reagan, also known as the "Petunia City".
  • Freeport - host to the second Lincoln-Douglas debate and home of many late 19th century homes and buildings.
  • Galena - home of Ulysses S. Grant and lots of late 19th century heritage.
  • Harvard
  • LaSalle-Peru
  • Ottawa
  • Sterling-Rock Falls - neighboring cities split by the Rock River.
  • Stockton - small town filled with history and home to J.L. Kraft's first cheese plant
  • Sycamore - DeKalb's "twin city" located to the northeast.
  • Utica

Other destinations

  • Apple River Canyon State Park - near Stockton: camping, hiking, fishing and hunting amid the limestone bluffs, ravines, springs and streams that characterize northwest Illinois.
  • Apple River Fort Historic Site - in Elizabeth: a fort hastily constructed by settlers at the onset of the 1832 Black Hawk War.
  • Apple Canyon Lake - near Stockton: boating, fishing, golfing; a planned vacation community with 400 acre lake.
  • Castle Rock State Park - near Oregon: along the bank of the Rock River - boating, camping, fishing, hiking, hunting.
  • Charles Mound - near Scales Mound: the highest point in Illinois at 1235 ft, located on private property with limited accessibility.
  • Lake Le-Aqua-Na State Recreation Area - near Lena: boating, camping, fishing, hiking, hunting.
  • Lowden State Park - near Oregon: a site along the Rock River with a statue of Black Hawk as the Eternal Indian - boating, camping, fishing, hiking, hunting.
  • Mississippi Palisades State Park - near Savanna: many caves and large cliffs along the Mississippi River along the mouth of the Apple River.
  • Rock Cut State Park - near Rockford: biking, camping, boating, fishing, hiking, hunting.
  • Shabbona Lake State Recreation Area - near Shabbona: man-made lake created by damming a tributary of the Fox River; boating, camping, fishing, hunting, hiking.
  • Starved Rock State Park - near Oglesby: boating, camping, fishing, hiking, hunting in the Rock River Hills region.
  • Upper Mississippi River National Wildlife and Fish Refuge - locally, north of Savanna - entire region spans along the Upper Mississippi River from Wabasha, Minnesota, in the north to Rock Island, Illinois, in the south: a 240000 acre, 261 mi wildlife refuge.
  • White Pines Forest State Park - near Polo, Mount Morris and Oregon: camping, fishing, hiking, hunting in the Rock River valley.

Get in

By plane

By car

A number of different major routes run through Northern Illinois:

Interstates:

  • Interstate 80 is a cross-country east-west route running through the region, from Indiana and Chicago to the east to the Quad Cities and into Iowa.
  • Interstate 88 (portions tolled) runs east-west from Chicago west through Rochelle, Dixon, Rock Falls and on towards the Quad Cities.
  • Interstate 90 (tolled) connects Rockford and its suburbs with Chicago to the east, and with Madison and Rock County, Wisconsin, to the north. It enters the area near Belvidere and heads northwest before entering Rockford. Once in Rockford, it joins I-39 and turns north exiting at the Wisconsin border.
  • Interstate 39 (portions tolled) runs north-south through the area to Central Illinois and Bloomington-Normal to the south. In Rockford, it joins I-90 and continues north to the Wisconsin border.

US Routes:

  • US Route 20 is a major cross-country east-west route running through the region. Entering just west of Belvidere from Chicagoland, it runs due west and joins I-39 just south of Rockford. From there, it bypasses the city, runs through Freeport and Galena, and crosses the Mississippi River into Iowa at Dubuque.
  • US Route 30 is a major cross-country east-west route running across the Northern Illinois region. Entering the area just east of Kendall County, it runs straight west and connects Dixon and Sterling-Rock Falls before entering Eastern Iowa at Clinton.
  • US Route 52 enters the region from the east in the Mendota area, just north of LaSalle-Peru, then angles northwest through Dixon and Mount Carroll, then at Savanna cross the Mississippi River into Iowa.
  • US Route 51 is a major cross-country north-south route running through the region. Starting in South Beloit, running south (sometimes concurrently with I-80/I-39/US 20) through the region around Rockford, Rochelle, and LaSalle-Peru, then into Central Illinois.

Illinois Routes:

  • Illinois Route 72 runs east-west and connects the middle part of the region, principally Byron.
  • Illinois Route 2, a trans region north-south route, IL 2 starts at the Wisconsin state line in South Beloit, connects Rockford and its suburbs with Oregon, Dixon and Sterling, ending in Sterling.
  • Illinois Route 26 runs north-south from the Wisconsin state line south of Monroe, connecting Freeport and Dixon, continuing into Western Illinois.

Do

Companies like Kayak Starved Rock provide unique and educational guided kayak tours as well as kayak rentals to explore the towering St. Peters sandstone bluffs and Bald Eagles.

Nearby

My experience

Write about your trip here. Notes save automatically in this browser as you type; back them up from My journal.