Radnor is a community in Delaware County, Ohio, home to about 95 people across 0.7 square miles. It has no ZIP code of its own: it’s part of 43066.
Homes sold for a median of $128 per square foot in the three months ending August 2026, a buyer’s market.
Each card is that ZIP code’s whole market, including any part outside Radnor. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Radnor’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | John Glenn Columbus International Airport (CMH)31 miles away |
|---|---|
| Nearest city of 250,000+ | Columbus, OH30 miles away |
| Nearest city of 1 million+ | Chicago, IL255 miles away |
Straight-line distances from the center of Radnor; 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.
Radnor had 180 residents in the 2020 census, down 10% since 2010.
It’s the 1222nd largest of 1,264 towns in Ohio by population.
Delaware County grew from 26,401 residents in 1900 to 214,124 in 2020.
Delaware 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 21°F. About 40.6 inches of rain and melted snow fall in a typical year, with about 24 inches of snow.
Source: NOAA 1991–2020 climate normals, Marysville, OH weather station (14 miles away).
94,895 jobs at 5,365 businesses in Delaware County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
3 doctors and other health care providers list an office in Radnor.
Nearest hospitals
Providers with an office here
| Nurse practitioners and physician assistants | 1 |
|---|---|
| Mental health providers | 2 |
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.
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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.