| Naples | |||
| General Characteristics | Number | Percent | U.S. |
| Total population | 20976 | ||
| Male | 9698 | 46.2 | 0.491 |
| Female | 11278 | 53.8 | 0.509 |
| Median age (years) | 60.7 | (X) | 35.3 |
| Under 5 years | 550 | 2.6 | 0.068 |
| 18 years and over | 18687 | 89.1 | 0.743 |
| 65 years and over | 8864 | 42.3 | 0.124 |
| One race | 20541 | 97.9 | 0.976 |
| White | 19402 | 92.5 | 0.751 |
| Black or African American | 975 | 4.6 | 0.123 |
| American Indian and Alaska Native | 26 | 0.1 | 0.009 |
| Asian | 70 | 0.3 | 0.036 |
| Native Hawaiian and Other Pacific Islander | 5 | 0 | 0.001 |
| Some other race | 63 | 0.3 | 0.055 |
| Two or more races | 435 | 2.1 | 0.024 |
| Hispanic or Latino (of any race) | 467 | 2.2 | 0.125 |
| Household population | 20704 | 98.7 | 0.972 |
| Group quarters population | 272 | 1.3 | 0.028 |
| Average household size | 1.92 | (X) | 2.59 |
| Average family size | 2.38 | (X) | 3.14 |
| Total housing units | 16956 | ||
| Occupied housing units | 10803 | 63.7 | 0.91 |
| Owner-occupied housing units | 8607 | 79.7 | 0.662 |
| Renter-occupied housing units | 2196 | 20.3 | 0.338 |
| Vacant housing units | 6153 | 36.3 | 0.09 |
| Social Characteristics | Number | Percent | U.S. |
| Population 25 years and over | 18220 | ||
| High school graduate or higher | 16938 | 93 | 0.804 |
| Bachelor's degree or higher | 8211 | 45.1 | 0.244 |
| Civilian veterans (civilian population 18 years and over) | 4213 | 22.6 | 0.127 |
| Disability status (population 5 years and over) | 3459 | 17.2 | 0.193 |
| Foreign born | 1863 | 8.9 | 0.111 |
| Male, Now married, except separated (population 15 years and over) | 6115 | 69.6 | 0.567 |
| Female, Now married, except separated (population 15 years and over) | 6154 | 59.5 | 0.521 |
| Speak a language other than English at home (population 5 years and over) | 2020 | 9.9 | 0.179 |
| Economic Characteristics | Number | Percent | U.S. |
| In labor force (population 16 years and over) | 7501 | 39.7 | 0.639 |
| Mean travel time to work in minutes (workers 16 years and over) | 15.5 | (X) | 25.5 |
| Median household income in 1999 (dollars) | 65641 | (X) | 41994 |
| Median family income in 1999 (dollars) | 83831 | (X) | 50046 |
| Per capita income in 1999 (dollars) | 61141 | (X) | 21587 |
| Families below poverty level | 204 | 3.1 | 0.092 |
| Individuals below poverty level | 1217 | 5.9 | 0.124 |
| Housing Characteristics | Number | Percent | U.S. |
| Single-family owner-occupied homes | 4241 | ||
| Median value (dollars) | 416000 | (X) | 119600 |
| Median of selected monthly owner costs | (X) | (X) | |
| With a mortgage (dollars) | 1806 | (X) | 1088 |
| Not mortgaged (dollars) | 627 | (X) | 295 |
| (X) Not applicable. | |||
| Source: U.S. Census Bureau, Summary File 1 (SF 1) and Summary File 3 (SF 3) | |||