There are 3 unique ZIP codes in Crystal Lake, Illinois. Area code: 815/779.
3
ZIP codes
42.40
sq mi land
1.09
sq mi water
815/779
area code
Crystal Lake, IL ZIP code map
About Crystal Lake, IL
Crystal Lake, Illinois, is a charming city located in Mchenry County. Known for its scenic environment and vibrant community, Crystal Lake offers a mix of suburban living and natural beauty. The city is home to a variety of parks, recreational activities, and a rich cultural heritage that attracts both residents and visitors alike.
Location & geography
Situated about 50 miles northwest of Chicago, Crystal Lake is bordered by the actively developed cities of Algonquin to the south and Lake in the Hills to the southeast. The city covers a land area of 42.40 square miles and includes a water area of 1.09 square miles, providing residents with ample space for outdoor activities. The surrounding terrain features beautiful parks, lakes, and a network of trails that enhance the area's natural appeal.
Community & economy
Crystal Lake is characterized by its strong sense of community and diverse population, offering a wide range of amenities and services. The local economy thrives on a mix of retail, healthcare, and education, with many residents commuting to nearby urban centers for work. Daily life in Crystal Lake is enriched by community events, farmers markets, and recreational opportunities that foster a tight-knit atmosphere.
Transportation
Residents of Crystal Lake enjoy convenient access to major highways, including U.S. Route 14 and Illinois Route 31, which facilitate travel to surrounding areas. The city is served by the Metra train system, providing reliable transportation to downtown Chicago. The nearest major airport is O'Hare International Airport, located approximately 50 miles southeast.
History
Crystal Lake was founded in the mid-19th century and has grown significantly since its early days as a small settlement. Key industries initially included agriculture and tourism, taking advantage of the area's natural beauty and resources. Notable events in its history include the establishment of the Crystal Lake Park District, which was created to preserve the city's scenic landscapes and to enhance community recreation.
Did you know?
One surprising fact about Crystal Lake is that it is home to the Crystal Lake Historical Society, which preserves the city's rich heritage and shares it with the community. Additionally, the city hosts a popular annual event known as the Crystal Lake Festival, celebrating local culture and attracting visitors from across the region.
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions
What ZIP codes does Crystal Lake, IL have?
Crystal Lake, IL has 2 ZIP codes: 60012, 60014. Each ZIP code serves a distinct delivery area within the city and surrounding region.
What is the main ZIP code for Crystal Lake, IL?
The primary ZIP code for Crystal Lake, IL is 60012. The city uses area code 815 or 779 for phone service.
What county is Crystal Lake, IL in?
Crystal Lake is located in McHenry County, Illinois.
How many ZIP codes are in Crystal Lake, IL?
Crystal Lake, IL has 2 ZIP codes.
What ZIP code covers downtown Crystal Lake and the Crystal Lake Park District area?
Downtown Crystal Lake and the Crystal Lake Park District, including the lakefront parks and public facilities, are primarily located in ZIP code 60014.
Which ZIP code serves the northern residential neighborhoods of Crystal Lake near the McHenry County border?
The northern residential areas of Crystal Lake, extending toward the McHenry County border, are served by ZIP code 60012.
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