London is a city in Madison County, Ohio, home to about 10,484 people across 8.4 square miles. Its ZIP code is 43140.
Homes sold for a median of $185 per square foot in the three months ending August 2026, a seller’s market.
Mostly London; also Choctaw Lake and West Jefferson
Each card is that ZIP code’s whole market, including any part outside London. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up London’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)30 miles away |
|---|---|
| Nearest city of 250,000+ | Columbus, OH25 miles away |
| Nearest city of 1 million+ | Chicago, IL259 miles away |
Straight-line distances from the center of London; 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.
London had 10,279 residents in the 2020 census, up 17% since 2000.
It’s the 182nd largest of 1,264 towns in Ohio by population.
Madison County grew from 20,590 residents in 1900 to 43,824 in 2020.
Madison County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 19°F. About 42.4 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, London Fish Hatchery, OH weather station (3 miles away).
18,238 jobs at 723 businesses in Madison County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
161 doctors and other health care providers list an office in London.
Nearest hospitals
Providers with an office here
| Primary care doctors | 20 |
|---|---|
| Specialist doctors | 15 |
| Dentists | 7 |
| Nurse practitioners and physician assistants | 37 |
| Mental health providers | 54 |
| Physical and occupational therapists | 21 |
| Optometrists | 2 |
| Chiropractors | 5 |
| 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 (4 nearby)
Grocery stores (1 nearby)
Libraries (2 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 1810.
Source: Wikidata (wikidata.org), the free knowledge base; people are listed by place of birth.
Public schools here are run by Madison-Plains Local, Jonathan Alder Local, London City and others. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Madison-Plains Elementary SchoolLondon | Pre-K–3 | 311 | Public | 7.9 mi |
| Monroe Elementary SchoolLondon | Pre-K–4 | 243 | Public | 7.7 mi |
| London Elementary SchoolLondon | K–5 | 1,011 | Public | 0.5 mi |
| Madison-Plains Intermediate SchoolLondon | 4–6 | 269 | Public | 7.9 mi |
| London MIddle SchoolLondon | 6–8 | 493 | Public | 0.6 mi |
| Madison-Plains Junior HighLondon | 7–8 | 169 | Public | 7.9 mi |
| Buckeye Community School - LondonLondon | 9–12 | 300 | Charter | 1.3 mi |
| London High SchoolLondon | 9–12 | 635 | Public | 0.4 mi |
| Madison-Plains High SchoolLondon | 9–12 | 345 | Public | 7.9 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| St Patrick SchoolLondon | Pre-K–8 | 101 | Roman Catholic | 0.1 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 Choctaw Lake, West Jefferson, Plumwood and Lafayette.
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.