Residential delivery area · Ohio
ZIP Code 43140: London, OH
ZIP code 43140 uses the postal name London, Ohio and lies mostly in Madison County (96% of its land), reaching into Franklin County and Clark County (Census 2020 ZIP-county file). About 24,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $83,644 (Census Bureau, ACS 2020-2024). By Census place, its land lies in London (4%), Choctaw Lake (under 1%), Lafayette (under 1%) and Plumwood (under 1%), and under 1% in smaller places; 94% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- London · its only residential ZIP
- County
- Madison County (96%); Franklin County (2%); Clark County (1%)
- Census places
- London (4%); Choctaw Lake (under 1%) census-designated place; Lafayette (under 1%) census-designated place; Plumwood (under 1%) census-designated place
- Metro area
- Columbus, OH
- House district
- OH-15 119th Congress
- State
- Ohio
- Time zone
- Eastern
- Land area
- 219.9 sq mi · 110 people per sq mi
Where is ZIP code 43140?
43140 centers on 39.880°, -83.429° and covers 219.9 square miles of land plus 0.7 of water. It borders 11 ZIP codes: 43162, 45369, 43151, 43153, 45368, 43044, 43143, 43029, 43123, 43064 and more.
The map draws ZIP code areas only. For the streets inside 43140, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 43140 compare with the rest of Madison County?
| Measure | 43140 | In Madison County | In OH |
|---|---|---|---|
| People (ACS 2020-2024) | 24,237 | 2nd of 11 | 160th of 1,233 |
| Median household income | $84k | 5th of 8 | 214th of 755 |
| Median home value | $243k | 4th of 9 | 216th of 810 |
Its median household income is higher than in 66% of U.S. residential ZIP codes, and it is denser than 55% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 43140?
The 2020 Census counted 24,030 people in 43140; the ACS, which samples households over 2020-2024, estimates 24,237. Between the 2010 and 2020 censuses its population fell 0.1% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 24,237
- 2020 Census count
- 24,030−0.1% since 2010 (24,066)
- Households
- 8,177
- Median age
- 42.0
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 43140?
Of the 24,237 people the ACS estimates in 43140, 17.1% are under 18 and 15.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (81.6%).
- Under 1817.1%
- 18 to 6467.9%
- 65 and older15.0%
- White, not Hispanic81.6%
- Black, not Hispanic7.8%
- Other or two or more6.1%
- Hispanic or Latino2.4%
- Asian, not Hispanic2.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 43140 earn?
Median household income is $83,644 (ACS 2020-2024), the 5th highest of the 8 ranked ZIP codes in Madison County. It is not measurably different from 2015-2019 ($81,996 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $83,644±$9,794
- Income per person
- $34,937
- Below the poverty line
- 9.5%
- Unemployed (of the labor force)
- 4.2%
- Adults 25+ with a bachelor's degree
- 22.6%
- Adjusted gross income per tax return, 2022
- $73,3309,590 returns; wages 67% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 43140?
FHFA's house price index for 43140, built from repeat sales and appraisals of the same homes, rose 113% from 2015 to 2025 and rose 55% from 2020 to 2025, and moved +5.2% in 2025.
- Median home value (owners' estimate)
- $242,900
- Median gross rent
- $918
- Homes owned by their occupants
- 73.0%
- Housing units
- 8,704
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 43140?
358 business establishments had a location in this ZIP code in 2023, 28 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade59
- Construction52
- Accommodation and food services41
- Health care and social assistance39
- Other services (except public administration)36
- Manufacturing20
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 43140?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 43162 | West Jefferson | 6,896 | $76k | 8.0 mi |
| 45369 | South Vienna | 4,120 | $89k | 10.1 mi |
| 43151 | Sedalia | 233 | $62k | 10.5 mi |
| 43153 | South Solon | 1,112 | $90k | 11.6 mi |
| 45368 | South Charleston | 3,889 | $61k | 11.9 mi |
| 43044 | Mechanicsburg | 4,964 | $76k | 13.7 mi |
| 43143 | Mount Sterling | 5,803 | $100k | 13.8 mi |
| 43029 | Irwin | 544 | $108k | 15.0 mi |
| 43123 | Grove City | 67,626 | $91k | 16.6 mi |
| 43064 | Plain City | 18,143 | $140k | 16.8 mi |
| 43146 | Orient | 13,387 | $81k | 17.1 mi |
| 43119 | Galloway | 29,660 | $91k | 12.5 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.