Monroe is a city in Butler County, Ohio, home to about 15,401 people across 16 square miles. Its ZIP code is 45050, and parts of 45036 and 45044 are in Monroe too.
Homes sold for a median of $181 per square foot in the three months ending August 2026, a seller’s market.
Mostly Monroe
Mostly Lebanon; part is in Monroe
Mostly Middletown; part is in Monroe
Each card is that ZIP code’s whole market, including any part outside Monroe. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Monroe’s story and what everyday life there is like, for people thinking about moving in.
Are you a local agent who knows Monroe well? Agents who advertise here will be able to write the guide. Advertise on OfferBacked
| Nearest major airport | Cincinnati Northern Kentucky International Airport (CVG)33 miles away |
|---|---|
| Closer regional airport | Cincinnati Municipal Airport Lunken Field (LUK)25 miles away |
| Nearest city of 250,000+ | Cincinnati, OH24 miles away |
| Nearest city of 1 million+ | Chicago, IL239 miles away |
Straight-line distances from the center of Monroe; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Monroe had 15,412 residents in the 2020 census, up 116% since 2000.
It’s the 119th largest of 1,264 towns in Ohio by population.
Butler County grew from 56,870 residents in 1900 to 390,357 in 2020.
Butler County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 86°F in summer, and winter lows average 20°F. About 42.4 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Franklin, OH weather station (6 miles away).
148,073 jobs at 7,537 businesses in Butler County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
38 doctors and other health care providers list an office in Monroe.
Nearest hospitals
Providers with an office here
| Primary care doctors | 5 |
|---|---|
| Specialist doctors | 1 |
| Dentists | 3 |
| Nurse practitioners and physician assistants | 9 |
| Mental health providers | 7 |
| Physical and occupational therapists | 6 |
| Optometrists | 3 |
| Chiropractors | 4 |
| Pharmacies | 1 |
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
Parks (5 nearby)
Grocery stores (8 nearby)
Pharmacies (3 nearby)
Libraries (2 nearby)
Museums (2 nearby)
Theaters and performance venues
Counts are within about 3 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
Public schools here are run by Monroe Local, Butler Technology & Career Development Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Monroe Primary SchoolMonroe | Pre-K–1 | 448 | Public | 1.8 mi |
| Monroe Elementary SchoolMonroe | 2–6 | 1,166 | Public | 2.0 mi |
| Monroe Junior High SchoolMonroe | 7–8 | 440 | Public | 2.0 mi |
| Monroe High SchoolMonroe | 9–12 | 871 | Public | 1.9 mi |
| Butler Tech LeSourdsville LocationMonroe | 11–12 | — | Career and Technical | 4.5 mi |
| Butler Tech Natural Science CenterMonroe | 11–12 | 104 | Career and Technical | 2.1 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Middletown, Lebanon, Four Bridges, Mason and South Lebanon.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.