Population Demographics for Decatur County, Tennessee in 2020, 2019 
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  |  Total population in Decatur County |   |  | Total Population: | 11,757 |  | Male Population: | 5,798 |  | Female Population: | 5,959 |  
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  |  Median age in Decatur County |   |  | Both sexes | 44 |  | Male | 42 |  | Female | 46 |  
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  |  Population in households in Decatur County |   |  | Total Population: | 11,544 |  | Male Population: | 5,729 |  | Under 5 years: | 336 |  | 5 to 9 years: | 382 |  | 10 to 14 years: | 339 |  | 15 to 17 years: | 235 |  | 18 and 19 years: | 134 |  | 20 years: | 69 |  | 21 years: | 72 |  | 22 to 24 years: | 158 |  | 25 to 29 years: | 299 |  | 30 to 34 years: | 329 |  | 35 to 39 years: | 345 |  | 40 to 44 years: | 370 |  | 45 to 49 years: | 408 |  | 50 to 54 years: | 414 |  | 55 to 59 years: | 430 |  | 60 and 61 years: | 142 |  | 62 to 64 years: | 241 |  | 65 and 66 years: | 167 |  | 67 to 69 years: | 225 |  | 70 to 74 years: | 261 |  | 75 to 79 years: | 186 |  | 80 to 84 years: | 109 |  | 85 years and over: | 78 |  | Female Population: | 5,815 |  | Under 5 years: | 330 |  | 5 to 9 years: | 323 |  | 10 to 14 years: | 353 |  | 15 to 17 years: | 227 |  | 18 and 19 years: | 113 |  | 20 years: | 52 |  | 21 years: | 49 |  | 22 to 24 years: | 152 |  | 25 to 29 years: | 310 |  | 30 to 34 years: | 301 |  | 35 to 39 years: | 320 |  | 40 to 44 years: | 354 |  | 45 to 49 years: | 399 |  | 50 to 54 years: | 440 |  | 55 to 59 years: | 425 |  | 60 and 61 years: | 168 |  | 62 to 64 years: | 267 |  | 65 and 66 years: | 165 |  | 67 to 69 years: | 237 |  | 70 to 74 years: | 284 |  | 75 to 79 years: | 221 |  | 80 to 84 years: | 171 |  | 85 years and over: | 154 |  
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  |  Average household size in Decatur County |   |  | Total: | 2 |  | Under 18 years: | 0 |  | 18 years and over: | 1 |  
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  |  Number of occupied homes in Decatur County |   |  | Total: | 4,927 |  | Family led homes: | 3,277 |  | Husband-wife family: | 2,497 |  | Other family: | 780 |  | Population of male led with no wife present: | 245 |  | Population female led with no husband present: | 535 |  | Population of Nonfamily homes: | 1,650 |  | Population living alone: | 1,464 |  | Population not living alone: | 186 |  
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  |  Total occupied homes in Decatur County with people under 18 years old: |   |  | Total: | 4,927 |  | Population of homes with one or more people under 18 years: | 1,412 |  | Population of family homes: | 1,397 |  | Husband-wife family: | 912 |  | Under 6 years only: | 182 |  | Under 6 years and 6 to 17 years: | 202 |  | 6 to 17 years only: | 528 |  | Other family: | 485 |  | Male householder, no wife present: | 137 |  | Under 6 years only: | 29 |  | Under 6 years and 6 to 17 years: | 34 |  | 6 to 17 years only: | 74 |  | Female led with no husband present: | 348 |  | Under 6 years only: | 70 |  | Under 6 years and 6 to 17 years: | 83 |  | 6 to 17 years only: | 195 |  | Nonfamily households: | 15 |  | Male led households: | 12 |  | Under 6 years only: | 2 |  | Under 6 years and 6 to 17 years: | 1 |  | 6 to 17 years only: | 9 |  | Female led householder: | 3 |  | Under 6 years only: | 1 |  | Under 6 years and 6 to 17 years: | 0 |  | 6 to 17 years only: | 2 |  | Households with no people under 18 years: | 3,515 |  | Family households: | 1,880 |  | Husband-wife family: | 1,585 |  | Other family: | 295 |  | Male led with no wife present: | 108 |  | Female led with no husband present: | 187 |  | Nonfamily households: | 1,635 |  | Male led householder: | 776 |  | Female led householder: | 859 |  
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  |  Total number led homes in Decatur County, by type |   |  | Total Home Population: | 4,927 |  | Population of Family homes: | 3,277 |  | Population of 15 to 24 year olds: | 100 |  | Population of 25 to 34 year olds: | 456 |  | Population of 35 to 44 year olds: | 560 |  | Population of 45 to 54 year olds: | 641 |  | Population of 55 to 59 year olds: | 333 |  | Population of 60 to 64 year olds: | 337 |  | Population of 65 to 74 year olds: | 551 |  | Population of 75 to 84 year olds: | 248 |  | Population of 85 year olds and over: | 51 |  | Population of Nonfamily Homes: | 1,650 |  | Population of 15 to 24 year olds: | 57 |  | Population of 25 to 34 year olds: | 94 |  | Population of 35 to 44 year olds: | 164 |  | Population of 45 to 54 year olds: | 276 |  | Population of 55 to 59 year olds: | 179 |  | Population of 60 to 64 year olds: | 153 |  | Population of 65 to 74 year olds: | 313 |  | Population of 75 to 84 year olds: | 281 |  | Population of 85 year olds and over: | 133 |  
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  |  households in Decatur County containing people over 60 |   |  | Total Population: | 4,927 |  | Population of homes with one or more people 60 years and over: | 2,196 |  | 1-person household: | 844 |  | 2-or-more-person household: | 1,352 |  | Family households: | 1,300 |  | Nonfamily households: | 52 |  | Population of homes with no people 60 years and over: | 2,731 |  | 1-person household: | 620 |  | 2-or-more-person household: | 2,111 |  | Family homes: | 1,977 |  | Nonfamily homes: | 134 |  
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  |  homes in Decatur County with multiple generations. |   |  | Total Population: | 4,927 |  | Home has three or more generations: | 191 |  | Home does not have three or more generations: | 4,736 |  
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  |  Unmarried population in Decatur County under 18 years old in homes |   |  | Total Population: | 2,520 |  | Unmarried partner of home lead present: | 229 |  | In family homes: | 211 |  | Population of male led and male partner homes: | 8 |  | Population of male led and female partner households: | 77 |  | Population of female led and female partner households: | 4 |  | Population of female led and male partner households: | 122 |  | In nonfamily homes: | 18 |  | Population of male led and male partner homes: | 0 |  | Population of male led and female partner homes: | 14 |  | Population of female led and female partner homes: | 0 |  | Population of female led and male partner homes: | 4 |  | No unmarried partner of home lead present: | 2,291 |  | In family homes: | 2,287 |  | Population of husband-wife family homes: | 1,673 |  | Population of male lead with no wife present, family homes: | 133 |  | Population of female lead with no husband present, family homes: | 481 |  | In nonfamily homes: | 4 |  
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  |  Population in families living in Decatur County |   |  | Total Population: | 9,415 |  | Population Under 18 years: | 2,464 |  | Population 18 years and over: | 6,951 |  
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  |  How long in Decatur County have lived in one place. |   |  | Total: | 4,927 |  | Population of Owner occupied homes: | 3,834 |  | Family home: | 2,671 |  | Nonfamily homess: | 1,163 |  | Male led home: | 536 |  | Living alone: | 473 |  | Not living alone: | 63 |  | Female led home: | 627 |  | Living alone: | 584 |  | Not living alone: | 43 |  | Population of Renter occupied homes: | 1,093 |  | Family run homes: | 606 |  | Husband-wife family: | 306 |  | Other family: | 300 |  | Male led with no wife present: | 86 |  | Female led with no husband present: | 214 |  | Nonfamily Homes: | 487 |  | Male led homes: | 252 |  | Male living alone: | 196 |  | Male not living alone: | 56 |  | Female led homes: | 235 |  | Females living alone: | 211 |  | Females not living alone: | 24 |  
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