Bunnell is the county seat of Flagler County Florida, United States, with a population of 3,276 at the 2020 census. The city is part of the Deltona–Daytona Beach–Ormond Beach, FL metropolitan statistical area and is named after an early resident, Alvah A. Bunnell, a shingle maker and supplier of wood to the area's fledgling rail industry.

Bunnell is located in central Flagler County. The city limits now extend south and northwest to the county boundary. Bunnell is bordered to the north and east by the city of Palm Coast.

U.S. Route 1 passes through the center of Bunnell as State Street, leading north 31 miles (50 km) to St. Augustine and southeast 18 miles (29 km) to Ormond Beach. Florida State Road 100 leads 8 miles (13 km) east to Flagler Beach and northwest 30 miles (48 km) to Palatka. Interstate 95 is 4 miles (6 km) east of the center of Bunnell via SR 100.

According to the United States Census Bureau, the city has a total area of 138.6 square miles (358.9 km²), of which 137.5 square miles (356.0 km²) is land and 1.1 square miles (2.9 km²), or 0.81%, is water.

Since 2000, Bunnell is the second-largest city in the state of Florida (by area) with the annexation of over 87,000 acres, which equals 136.000 square miles (352.238 km²).

The City of Bunnell is part of the humid subtropical climate zone with a Köppen Climate Classification of "Cfa" (C = mild temperate, f = fully humid, and a = hot summer).

As of the 2020 census, Bunnell had a population of 3,276. The median age was 45.6 years. 20.3% of residents were under the age of 18 and 22.7% of residents were 65 years of age or older. For every 100 females there were 83.9 males, and for every 100 females age 18 and over there were 79.1 males age 18 and over.

89.9% of residents lived in urban areas, while 10.1% lived in rural areas.