There are 2 unique ZIP codes in Middletown, Ohio. Area code: 513.
2
ZIP codes
86.98
sq mi land
1.20
sq mi water
513
area code
Middletown, OH ZIP code map
About Middletown, OH
Middletown, Ohio, is a vibrant city located in Butler County. Known for its rich history and community spirit, Middletown offers residents and visitors a diverse range of activities and amenities. With a mix of industrial heritage and modern living, the city is an attractive place to live, work, and explore.
Location & geography
Middletown is strategically situated in southwestern Ohio, approximately 26 miles north of Cincinnati and 47 miles south of Dayton. The city covers a land area of 124.77 square miles, with an additional 1.75 square miles of water, creating a diverse landscape. Its location along major highways offers easy access to neighboring cities and regions.
Community & economy
The character of Middletown is shaped by its friendly community and family-oriented atmosphere. The city has a diverse economy, with industries ranging from manufacturing to retail, providing a stable environment for daily life. Residents enjoy numerous parks, recreational facilities, and local events that foster community engagement.
Transportation
Middletown is accessible via major highways such as Interstate 75, which connects the city to various parts of Ohio and beyond. The nearest airport is the Cincinnati/Northern Kentucky International Airport, located approximately 45 miles away, providing both domestic and international flights. Public transportation options include bus services that facilitate local travel.
History
Middletown was founded in the early 19th century and has a rich industrial history, primarily known for its steel and manufacturing sectors. The city has experienced notable growth over the years, especially during the post-World War II era, when it became a bustling center for various industries. Significant developments and community milestones have shaped its identity throughout the decades.
Did you know?
A little-known fact about Middletown is that it was once home to the Middletown and Hocking Valley Railway, an essential transportation route during the industrial boom. Additionally, the city is recognized for its vibrant art scene, including the unique Middletown Arts Center.
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions
What ZIP codes does Middletown, OH have?
Middletown, OH has 3 ZIP codes: 45042, 45044, 45044. Each ZIP code serves a distinct delivery area within the city and surrounding region.
What is the main ZIP code for Middletown, OH?
The primary ZIP code for Middletown, OH is 45042. The city uses area code 513 for phone service.
What county is Middletown, OH in?
Middletown is located in Butler County, Ohio.
How many ZIP codes are in Middletown, OH?
Middletown, OH has 3 ZIP codes.
What ZIP code covers downtown Middletown and the historic Main Street area?
Downtown Middletown, including the Main Street historic district, is primarily served by ZIP code 45042, which is the central business district of the city.
Which ZIP codes service the residential areas near Miami University's regional campus in Middletown?
The Miami University Middletown campus and surrounding residential neighborhoods are located in ZIP codes 45042 and 45044.
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