Eastborough is a city in Sedgwick County, Kansas, United States. As of the 2010 census, the city population was 773.
The first development in the Eastborough area began in 1929, but the discovery of oil in the area postponed its establishment until the middle of the 1930s. Although Eastborough found itself in disputes with the neighboring Woodlawn subdivision, the disputes were resolved after the two agreed to apply together for incorporation. Eastborough and Woodlawn were incorporated as the city of Eastborough on June 1, 1937.
Eastborough is located at 37°41′11″N 97°15′32″W / 37.68639°N 97.25889°W / 37.68639; -97.25889 (37.6864752, -97.2588378). According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.0 km²), all of it land.