Cities and Towns in Rock Island County, Illinois
Founded in 1831, Rock Island County is one of 102 counties in the state of Illinois. Historically, Rock Island County was formed from Jo Daviess County. The city of Rock Island is the county seat. With FIPS code of 161, Rock Island County has a population of 142,909 and area of 427 square miles (1,106 km²).
List of all cities in Rock Island County, IL alphabetically
| City/Town | Postal Code | Area Code |
| Andalusia, IL | 61232 | 309 |
| Babcock, IL | 61244 | 309 |
| Barstow, IL | 61236 | 309 |
| Buffalo Prairie, IL | 61237 | 309 |
| Byron Hills, IL | 61275 | 309 |
| Campbells Island, IL | 61244 | 309 |
| Carbon Cliff, IL | 61239 | 309 |
| Coal Valley, IL | 61240 | 309 |
| Coe, IL | 61275 | 309 |
| Cordova, IL | 61242 | 309 |
| East Moline, IL | 61244 | 309 |
| Hampton, IL | 61256 | 309 |
| Hillsdale, IL | 61257 | 309 |
| Illinois City, IL | 61259 | 309 |
| Marston, IL | 61279 | 309 |
| Meersman, IL | 61244 | 309 |
| Merry Oaks, IL | 61244 | 309 |
| Milan, IL | 61264 | 309 |
| Mobet Meadows, IL | 61275 | 309 |
| Moline, IL | 61265 | 309 |
| 61266 | 309 | |
| Perryton, IL | 61279 | 309 |
| Port Byron, IL | 61275 | 309 |
| Quad City Airport, IL | 61265 | 309 |
| Rapids City, IL | 61278 | 309 |
| Reynolds, IL | 61279 | 309 |
| Rock Island, IL | 61201 | 309 |
| 61204 | 309 | |
| 61299 | 309 | |
| Rock Island Arsonal, IL | 61299 | 309 |
| Silvis, IL | 61282 | 309 |
| South Moline, IL | 61244 | 309 |
| Taylor Ridge, IL | 61284 | 309 |
| Watertown, IL | 61244 | 309 |
| Whites Addition, IL | 61244 | 309 |
Major Cities and Towns in Rock Island County, Illinois
Rock Island
Location and History
Rock Island, the county seat of Rock Island County, is located along the Mississippi River in northwestern Illinois. Founded in 1835, Rock Island developed as a key transportation hub due to its strategic location near the confluence of the Mississippi and Rock Rivers. The city’s early economy was based on steamboat traffic and trade, and it became a vital military site with the establishment of the Rock Island Arsenal during the Civil War. The Arsenal, which still operates today, is the largest government-owned weapons manufacturing arsenal in the United States. Over the years, Rock Island has grown into a diverse city known for its rich history, cultural attractions, and riverfront beauty.
Area, Population, Zip Codes, Latitude and Longitude
- Area: 17.18 square miles
- Population: Approximately 37,100 (as of 2020 census)
- Zip Codes: 61201, 61204
- Latitude: 41.5095° N
- Longitude: 90.5787° W
Major Schools and Landmarks
Rock Island is served by the Rock Island-Milan School District, which includes Rock Island High School. Notable landmarks in the city include the Rock Island Arsenal, which houses a museum and historic buildings, and the Black Hawk State Historic Site, a park dedicated to the memory of Chief Black Hawk and the Sauk tribe. The city’s downtown area is home to the Centennial Bridge, which spans the Mississippi River and connects Rock Island to Davenport, Iowa. The district also boasts art galleries, shops, and theaters that contribute to Rock Island’s vibrant cultural scene.
Moline
Location and History
Moline is located along the Mississippi River and is part of the Quad Cities metropolitan area, which includes Rock Island, Davenport (Iowa), and Bettendorf (Iowa). Founded in 1843, Moline became an industrial powerhouse due to its riverfront location and the presence of water power from the Rock River. The city’s development was significantly shaped by John Deere, who established his plow manufacturing company in Moline in 1848. Deere & Company grew into one of the largest agricultural machinery manufacturers in the world, and Moline has since become synonymous with the company’s global headquarters. The city has a rich industrial heritage and is a vital part of the Quad Cities’ economy.
Area, Population, Zip Codes, Latitude and Longitude
- Area: 16.66 square miles
- Population: Approximately 42,000 (as of 2020 census)
- Zip Codes: 61265, 61266
- Latitude: 41.5067° N
- Longitude: 90.5151° W
Major Schools and Landmarks
Moline is served by the Moline-Coal Valley School District, with Moline High School being the main educational institution. The city’s major landmarks include the John Deere Pavilion, which showcases the history and innovations of Deere & Company. The iWireless Center, an arena for concerts and sporting events, is another notable attraction. Moline’s vibrant downtown area features shops, restaurants, and the scenic Ben Butterworth Parkway, which offers walking and biking paths along the Mississippi River. The city is also home to Deere & Company World Headquarters, designed by architect Eero Saarinen, a symbol of Moline’s industrial roots.
East Moline
Location and History
East Moline is located just east of Moline, along the Mississippi River, and is part of the Quad Cities area. It was officially incorporated in 1903 after being settled by industrial workers drawn to the area for employment in factories and mills. Much of East Moline’s growth in the early 20th century was driven by the manufacturing of agricultural machinery, with companies like International Harvester and John Deere playing major roles in the city’s development. The city’s economy has since diversified, but its manufacturing legacy remains an important aspect of its identity.
Area, Population, Zip Codes, Latitude and Longitude
- Area: 14.76 square miles
- Population: Approximately 20,200 (as of 2020 census)
- Zip Codes: 61244
- Latitude: 41.5136° N
- Longitude: 90.4353° W
Major Schools and Landmarks
East Moline is served by the East Moline School District 37, with United Township High School being the main high school in the area. Landmarks in East Moline include the Deere Harvester Works factory, where John Deere agricultural equipment is still manufactured, and the Rust Belt, a multi-purpose event venue that hosts concerts, markets, and community events. Additionally, the Great River Trail, a scenic bike path that follows the Mississippi River, runs through East Moline, offering residents and visitors opportunities for recreation and outdoor activities.
Silvis
Location and History
Silvis is located just east of East Moline and is part of the Quad Cities metropolitan area. Established in the late 19th century, the town was named after Richard Shippen Silvis, a prominent local businessman. Silvis developed as a railroad town, serving as a key hub for the Chicago, Rock Island, and Pacific Railroad. The town grew rapidly as the railroad brought new settlers and businesses. While railroads played a central role in the city’s early development, Silvis is now a residential community known for its friendly atmosphere and proximity to the amenities of the larger Quad Cities.
Area, Population, Zip Codes, Latitude and Longitude
- Area: 4.35 square miles
- Population: Approximately 7,500 (as of 2020 census)
- Zip Codes: 61282
- Latitude: 41.5053° N
- Longitude: 90.4144° W
Major Schools and Landmarks
Silvis is part of the Silvis School District 34, with George O. Barr Elementary School being one of the key schools in the area. Landmarks in Silvis include Hero Street, which honors Mexican-American servicemen who fought in World War II and other conflicts. The street is a testament to the town’s deep military history and pride. The TPC Deere Run golf course, home of the John Deere Classic, a PGA Tour event, is located just outside of Silvis and attracts golf enthusiasts from around the world. The town also features several parks and recreational facilities for residents.
Milan
Location and History
Milan (pronounced MY-lan) is located just southwest of Rock Island, near the confluence of the Rock and Mississippi Rivers. Founded in 1837 as Camden Mills, the town was later renamed Milan to reflect its European influences, as many settlers were of Italian descent. The town grew around its mills, which were powered by the Rock River and provided resources for local farmers. Milan’s strategic location near the Quad Cities has allowed it to maintain strong economic ties to the region while preserving its small-town charm.
Area, Population, Zip Codes, Latitude and Longitude
- Area: 6.06 square miles
- Population: Approximately 5,000 (as of 2020 census)
- Zip Codes: 61264
- Latitude: 41.4417° N
- Longitude: 90.5635° W
Major Schools and Landmarks
Milan is part of the Rock Island-Milan School District, and students attend Rock Island High School. Landmarks in Milan include the Black Hawk State Historic Site, located just north of the town, which offers hiking trails and historical exhibits about the Native American Sauk tribe. Milan also has several parks, including Camden Park, which features playgrounds, picnic areas, and sports fields. The village is known for its historic downtown, where local shops and restaurants provide a glimpse into the area’s rich cultural history.
Port Byron
Location and History
Port Byron is located in the northern part of Rock Island County, along the Mississippi River, just 20 miles upstream from the Quad Cities. Founded in 1836, Port Byron grew as a river town, serving as a key port for steamboats transporting goods and passengers. The town’s early economy relied heavily on river trade and agriculture. Over time, as river traffic declined, Port Byron remained a quiet residential community, preserving its historic character and small-town charm. The town continues to draw visitors for its scenic riverfront and its annual events, which celebrate its river heritage.
Area, Population, Zip Codes, Latitude and Longitude
- Area: 1.60 square miles
- Population: Approximately 1,600 (as of 2020 census)
- Zip Codes: 61275
- Latitude: 41.6225° N
- Longitude: 90.3315° W
Major Schools and Landmarks
Port Byron is part of the Riverdale School District, which includes Riverdale High School. Landmarks in Port Byron include the Tug Fest, an annual tug-of-war competition held across the Mississippi River between Port Byron and LeClaire, Iowa. The Port Byron Riverfront Park is another key feature, offering scenic views, boat access, and recreational facilities for residents and visitors. The town’s historic downtown area includes several well-preserved 19th-century buildings that reflect its rich history as a river port.
