Lewisboro is situated 50 miles north of New York City on the Connecticut border. As of the 2020 census, population was 12,265. The Town consists of 6 Hamlets, Goldens Bridge, Cross River, Waccabuc, South Salem, Lewisboro, and Vista. All are governed by the Lewisboro Town Government. Post Offices are located in Goldens Bridge (10526), Cross River (10518), Waccabuc (10597), and South Salem (10590). Commercial centers with neighborhood shopping are located in Goldens Bridge, Cross River, and Vista.
There are approximately 5900 parcels of land in Lewisboro. The School District is the Katonah-Lewisboro School District, which can be reached at 763-7000. Schools in the system include Katonah Elementary School, Increase Miller Elementary School, Meadow Pond Elementary School, John Jay Middle School, and John Jay High School.
The 1984 Master Plan identified approximately 35% of our land area as "developed land". Slightly less than 5% of Lewisboro's total area, 851 acres, is waterbodies. Total land area of the town is approximately 29 square miles.
| Area | 29 square miles |
| Population | 12,265 Census 2020 |
| Residential Median Age | 38.8 |
| Households | 4,218 |
| Average Family Size | 3.25 |
| Average Household Income | $157,412. |
| Median Home Price | $459,000. |
| Average Annual Rainfall and Snow | 48.64 inches |