| Sanibel | |||
| General Characteristics | Number | Percent | U.S. |
| Total population | 6064 | ||
| Male | 2883 | 47.5 | 0.491 |
| Female | 3181 | 52.5 | 0.509 |
| Median age (years) | 60.5 | (X) | 35.3 |
| Under 5 years | 115 | 1.9 | 0.068 |
| 18 years and over | 5454 | 89.9 | 0.743 |
| 65 years and over | 2427 | 40 | 0.124 |
| One race | 6034 | 99.5 | 0.976 |
| White | 5942 | 98 | 0.751 |
| Black or African American | 57 | 0.9 | 0.123 |
| American Indian and Alaska Native | 5 | 0.1 | 0.009 |
| Asian | 20 | 0.3 | 0.036 |
| Native Hawaiian and Other Pacific Islander | 3 | 0 | 0.001 |
| Some other race | 7 | 0.1 | 0.055 |
| Two or more races | 30 | 0.5 | 0.024 |
| Hispanic or Latino (of any race) | 84 | 1.4 | 0.125 |
| Household population | 6064 | 100 | 0.972 |
| Group quarters population | 0 | 0 | 0.028 |
| Average household size | 1.99 | (X) | 2.59 |
| Average family size | 2.33 | (X) | 3.14 |
| Total housing units | 7075 | ||
| Occupied housing units | 3049 | 43.1 | 0.91 |
| Owner-occupied housing units | 2637 | 86.5 | 0.662 |
| Renter-occupied housing units | 412 | 13.5 | 0.338 |
| Vacant housing units | 4026 | 56.9 | 0.09 |
| Social Characteristics | Number | Percent | U.S. |
| Population 25 years and over | 5316 | ||
| High school graduate or higher | 5105 | 96 | 0.804 |
| Bachelor's degree or higher | 2919 | 54.9 | 0.244 |
| Civilian veterans (civilian population 18 years and over) | 1355 | 25 | 0.127 |
| Disability status (population 5 years and over) | 839 | 14.2 | 0.193 |
| Foreign born | 445 | 7.4 | 0.111 |
| Male, Now married, except separated (population 15 years and over) | 2005 | 75.9 | 0.567 |
| Female, Now married, except separated (population 15 years and over) | 2058 | 71.4 | 0.521 |
| Speak a language other than English at home (population 5 years and over) | 387 | 6.5 | 0.179 |
| Economic Characteristics | Number | Percent | U.S. |
| In labor force (population 16 years and over) | 2107 | 38.5 | 0.639 |
| Mean travel time to work in minutes (workers 16 years and over) | 18.3 | (X) | 25.5 |
| Median household income in 1999 (dollars) | 79044 | (X) | 41994 |
| Median family income in 1999 (dollars) | 92455 | (X) | 50046 |
| Per capita income in 1999 (dollars) | 66912 | (X) | 21587 |
| Families below poverty level | 43 | 2 | 0.092 |
| Individuals below poverty level | 195 | 3.2 | 0.124 |
| Housing Characteristics | Number | Percent | U.S. |
| Single-family owner-occupied homes | 1927 | ||
| Median value (dollars) | 392400 | (X) | 119600 |
| Median of selected monthly owner costs | (X) | (X) | |
| With a mortgage (dollars) | 1945 | (X) | 1088 |
| Not mortgaged (dollars) | 723 | (X) | 295 |
| (X) Not applicable. | |||
| Source: U.S. Census Bureau, Summary File 1 (SF 1) and Summary File 3 (SF 3) | |||