Harrison is a city in Hamilton County, Ohio, home to about 13,084 people across 5.3 square miles. Its ZIP code is 45030.
Homes sold for a median of $177 per square foot in the three months ending August 2026, a seller’s market.
Mostly Harrison; also New Baltimore and New Haven (Hamilton County)
Each card is that ZIP code’s whole market, including any part outside Harrison. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Cincinnati Northern Kentucky International Airport (CVG)16 miles away |
|---|---|
| Nearest city of 250,000+ | Cincinnati, OH17 miles away |
| Nearest city of 1 million+ | Chicago, IL234 miles away |
Straight-line distances from the center of Harrison; 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.
Harrison had 12,563 residents in the 2020 census, up 68% since 2000.
It’s the 144th largest of 1,264 towns in Ohio by population.
Hamilton County grew from 409,479 residents in 1900 to 830,639 in 2020.
Hamilton 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 24°F. About 47.6 inches of rain and melted snow fall in a typical year, with about 11 inches of snow.
Source: NOAA 1991–2020 climate normals, Cincinnati-Fernbank, OH weather station (11 miles away).
529,211 jobs at 21,087 businesses in Hamilton County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
108 doctors and other health care providers list an office in Harrison.
Nearest hospitals
Providers with an office here
| Primary care doctors | 12 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 12 |
| Nurse practitioners and physician assistants | 21 |
| Mental health providers | 29 |
| Physical and occupational therapists | 22 |
| Optometrists | 6 |
| Chiropractors | 4 |
| Pharmacies | 5 |
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 (3 nearby)
Grocery stores (2 nearby)
Pharmacies (2 nearby)
Libraries (1 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 1.5 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.
Established in 1850.
Notable people born here
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Southwest Local. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Crosby Elementary SchoolHarrison | K–5 | 807 | Public | 3.8 mi |
| Harrison Elementary SchoolHarrison | K–5 | 604 | Public | 1.5 mi |
| Miami Whitewater Elementary SchoolHarrison | K–5 | 672 | Public | 0.7 mi |
| Harrison Middle SchoolHarrison | 6–8 | 1,069 | Public | 0.8 mi |
| Wildcat Pathways AcademyHarrison | 9–12 | 66 | Public | 0.8 mi |
| William Henry Harrison High SchoolHarrison | 9–12 | 1,122 | Public | 0.8 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Country Hills MontessoriHarrison | Pre-K–K | 3 | Nonsectarian | 1.7 mi |
| Spark Christian AcademyHarrison | K–5 | 32 | Christian (no specific denomination) | 1.5 mi |
| Mt. Hope Christian AcademyHarrison | 4–12 | 5 | Baptist | 3.5 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with New Baltimore and New Haven (Hamilton County).
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.