
Below is a summary of the year 2000 census data for the City of Gallatin.
| Profile of General Demographic Characteristics: 2000 | |||
| Geographic Area: Gallatin city, Tennessee | |||
| Subject | Number | Percent | |
| ...Total population | 23,230 | 100.0 | |
| SEX AND AGE | |||
| Male | 11,051 | 47.6 | |
| Female | 12,179 | 52.4 | |
| Under 5 years | 1,700 | 7.3 | |
| 5 to 9 years | 1,566 | 6.7 | |
| 10 to 14 years | 1,615 | 7.0 | |
| 15 to 19 years | 1,685 | 7.3 | |
| 20 to 24 years | 1,515 | 6.5 | |
| 25 to 34 years | 3,370 | 14.5 | |
| 35 to 44 years | 3,510 | 15.1 | |
| 45 to 54 years | 2,978 | 12.8 | |
| 55 to 59 years | 1,209 | 5.2 | |
| 60 to 64 years | 904 | 3.9 | |
| 65 to 74 years | 1,555 | 6.7 | |
| 75 to 84 years | 1,128 | 4.9 | |
| 85 years and older | 495 | 2.1 | |
| Median age (years) | 35.5 | (X) | |
| 18 years and over | 17,335 | 74.6 | |
| …Male | 8,054 | 34.7 | |
| …Female | 9,281 | 40.0 | |
| 21 years and over | 16,337 | 70.3 | |
| 62 years and over | 3,702 | 15.9 | |
| 65 years and over | 3,178 | 13.7 | |
| …Male | 1,164 | 5.0 | |
| …Female | 2,014 | 8.7 | |
| RACE | |||
| One race | 22,923 | 98.7 | |
| ...White | 18,189 | 78.3 | |
| …Black or African American | 4,081 | 17.6 | |
| …American Indian and Alaska Native | 70 | 0.3 | |
| …Asian | 98 | 0.4 | |
| ……Asian Indian | 27 | 0.1 | |
| ……Chinese | 17 | 0.1 | |
| ……Filipino | 5 | - | |
| ……Japanese | 8 | - | |
| ……Korean | 7 | - | |
| ……Vietnamese | 21 | 0.1 | |
| ……Other Asian (Note 1) | 13 | 0.1 | |
| …Native Hawaiian or Other Pacific Islander | 16 | 0.1 | |
| ……Native Hawaiian | 3 | - | |
| ……Guamanian or Chamorro | 3 | - | |
| ……Samoan | 8 | - | |
| ……Other Pacific Islander (Note 2) | 2 | - | |
| …Some other race | 469 | 2.0 | |
| Two or more races | 307 | 1.3 | |
| Race alone or in combination with one or more other races (Note 3) | |||
| White | 18,435 | 79.4 | |
| Black or African American | 4,226 | 18.2 | |
| American Indian and Alaska Native | 175 | 0.8 | |
| Asian | 136 | 0.6 | |
| Native Hawaiian or Other Pacific Islander | 30 | 0.1 | |
| Some other race | 546 | 2.4 | |
| HISPANIC OR LATINO AND RACE | |||
| …Total population | 23,230 | 100.0 | |
| Hispanic or Latino (of any race) | 801 | 3.4 | |
| …Mexican | 479 | 2.1 | |
| …Puerto Rican | 45 | 0.2 | |
| …Cuban | 9 | - | |
| …Other Hispanic or Latino | 268 | 1.2 | |
| Not Hispanic or Latino | 22,429 | 96.6 | |
| …White alone | 17,877 | 77.0 | |
| RELATIONSHIP | |||
| …Total population | 23,230 | 100.0 | |
| In households | 22,394 | 96.4 | |
| …Householder | 8,963 | 38.6 | |