Lake Seneca
Census-designated place in Williams County, Ohio

Lake Seneca is an unincorporated community (census-designated place) in Williams County, Ohio, with 529 residents (2020 Census). The nearest town is Nettle Lake, 3.9 miles W.
- 529residents (2020 Census)
- 1.4 sq miland area · 3.7 km²
- 373 / sq mipopulation density
- 43543ZIP code
About Lake Seneca
Lake Seneca is a census-designated place in Williams County, in the U.S. state of Ohio. The population was 529 at the 2020 census.
Text: Wikipedia · CC BY-SA 4.0
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Living in Lake Seneca
- Median household income
- $86,202
- Median home value
- $193,200
- Median age
- 52.7
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Map of Lake Seneca
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Open in Google Maps ›Lake Seneca, OH population
Lake Seneca had 529 residents in the 2020 Census.
| 2020 Census | 529 |
|---|---|
| Density | 373 per sq mi (144 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Lake Seneca at a glance
| State | Ohio (OH) |
|---|---|
| County | Williams County |
| Type | Census-designated place |
| Population | 529 (2020) |
| Land area | 1.42 sq mi (3.7 km²) |
| Water area | 0.37 sq mi (0.95 km²) |
| Coordinates | 41.6684° N, 84.6514° W |
| ZIP code | 43543 |
| Census code (GEOID) | 3941500 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Lake Seneca
- Nettle Lake3.9 mi W
- Pioneer5.2 mi E
- Montpelier6.6 mi SE
- Holiday City6.6 mi SE
- Camden, MI8.1 mi NW
- Kunkle8.4 mi E
- Edon9.9 mi SW
- Cambria, MI10.1 mi N
- Metz, IN10.3 mi W
- Clear Lake, IN10.6 mi NW
- Blakeslee10.8 mi S
- Montgomery, MI11.0 mi NW
Straight-line distance between town centers.
Frequently asked questions about Lake Seneca
What county is Lake Seneca in?
Lake Seneca is in Williams County, Ohio.
What is the population of Lake Seneca, OH?
529 people lived in Lake Seneca at the 2020 Census.
What is the ZIP code of Lake Seneca, OH?
The ZIP code of Lake Seneca is 43543.
What towns are near Lake Seneca?
Nettle Lake (3.9 mi), Pioneer (5.2 mi), Montpelier (6.6 mi), Holiday City (6.6 mi), Camden (8.1 mi).
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