Lynn Haven is a city in Bay County, Florida, United States, north of Panama City. The population was 18,493 at the 2010 census. It has the smaller population of the two principal cities of the Panama City - Lynn Haven Metropolitan Statistical Area.
As of the census of 2010, there were 18,493 people, 4,898 households, and 3,649 families residing in the city. The population density was 1,783.4 inhabitants per square mile. There were 8,266 housing units at an average density of 643.3 per square mile.
According to the United States Census Bureau, the city has a total area of 11.8 square miles. 10.4 square miles of it is land, and 1.4 square miles of it (11.90%) is water.
In the city the population was spread out with 26.1% under the age of 18, 7.2% from 18 to 24, 30.4% from 25 to 44, 24.3% from 45 to 64, and 12.0% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 93.2 males. For every 100 females age 18 and over, there were 90.1 males.
The median income for a household in the city was $42,105, and the median income for a family was $48,904. Males had a median income of $33,698 versus $24,707 for females. The per capita income for the city was $20,330. About 6.2% of families and 7.2% of the population were below the poverty line, including 8.1% of those under age 18 and 12.9% of those age 65 or over.