Historical population
| Census | Pop. | Note | %± |
| 1950 | 7,866 | | — |
|---|
| 1960 | 3,689 | | −53.1% |
|---|
| 2010 | 1,964 | | — |
|---|
| 2020 | 1,389 | | −29.3% |
|---|
Airport first appeared as an unincorporated place under the name La Lomo-Airport in the 1950 U.S. census;[12] the name was changed to simply Airport in the 1960 U.S. census.[13] The community was not listed in the 1970 U.S. census,[14] the 1980 U.S. Census,[15] the 1990 U.S. Census,[16] or the 2000 U.S. Census[15] until its listing as a census designated place in the 2010 U.S. census.[18]
As of the 2020 census, Airport had a population of 1,389. The population density was 7,982.8 inhabitants per square mile (3,082.2/km2). The census reported that 97.5% of the population lived in households and 2.5% lived in non-institutionalized group quarters. 100.0% of residents lived in urban areas, while 0.0% lived in rural areas.[19][20]
The median age was 33.6 years. The age distribution was 28.7% under the age of 18, 8.6% aged 18 to 24, 26.2% aged 25 to 44, 26.1% aged 45 to 64, and 10.4% who were 65 years of age or older. For every 100 females, there were 97.3 males, and for every 100 females age 18 and over, there were 99.2 males age 18 and over.[19]
There were 401 households, out of which 44.4% had children under the age of 18 living in them. Of all households, 32.2% were married-couple households, 10.7% were cohabiting couple households, 24.9% were households with a male householder and no spouse or partner present, and 32.2% were households with a female householder and no spouse or partner present. About 21.9% of all households were made up of individuals and 7.9% had someone living alone who was 65 years of age or older. The average household size was 3.38. There were 273 families (68.1% of all households).[19][21]
There were 432 housing units at an average density of 2,482.8 units per square mile (958.6 units/km2), of which 401 (92.8%) were occupied and 7.2% were vacant. Of occupied units, 30.4% were owner-occupied and 69.6% were occupied by renters. The homeowner vacancy rate was 3.1% and the rental vacancy rate was 3.4%.[19][22]