Eaton is a city in Preble County, Ohio, home to about 8,339 people across 6.3 square miles. Its ZIP code is 45320.
Homes sold for a median of $165 per square foot in the three months ending August 2026, a seller’s market.
Mostly Eaton; also Lake Lakengren
Each card is that ZIP code’s whole market, including any part outside Eaton. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Eaton’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Cincinnati Northern Kentucky International Airport (CVG)48 miles away |
|---|---|
| Closer regional airport | James M. Cox Dayton International Airport (DAY)25 miles away |
| Nearest city of 250,000+ | Cincinnati, OH42 miles away |
| Nearest city of 1 million+ | Chicago, IL215 miles away |
Straight-line distances from the center of Eaton; 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.
Eaton had 8,375 residents in the 2020 census, up 3% since 2000.
It’s the 213th largest of 1,264 towns in Ohio by population.
Preble County grew from 23,713 residents in 1900 to 40,999 in 2020.
Preble County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 85°F in summer, and winter lows average 17°F. About 43.1 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Eaton, OH weather station (about a mile away).
10,532 jobs at 671 businesses in Preble County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2022 (private employers; jobs counted where people work).
97 doctors and other health care providers list an office in Eaton.
Nearest hospitals
Providers with an office here
| Primary care doctors | 7 |
|---|---|
| Specialist doctors | 1 |
| Dentists | 7 |
| Nurse practitioners and physician assistants | 23 |
| Mental health providers | 38 |
| Physical and occupational therapists | 10 |
| Optometrists | 4 |
| Chiropractors | 7 |
| Pharmacies | 7 |
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 (4 nearby)
Grocery stores
Pharmacies (1 nearby)
Libraries (2 nearby)
Theaters and performance venues (1 nearby)
Counts are within about 2 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 1806.
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 Eaton Community City. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Hollingsworth East Elementary SchoolEaton | K–2 | 417 | Public | 1.4 mi |
| William Bruce Elementary SchoolEaton | 3–5 | 432 | Public | 1.3 mi |
| Eaton Middle SchoolEaton | 6–8 | 410 | Public | 0.7 mi |
| Eaton High SchoolEaton | 9–12 | 546 | Public | 0.7 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 Lake Lakengren.
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.