Population Demographics for Watertown Town, Massachusetts in 2020, 2019 
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  |   | Male | Female | Total |  | Total Population | 14,954 | 16,961 | 31,915 |  | White | 12,627 | 14,464 | 27,091 |  | Asian | 1,078 | 1,226 | 2,304 |  | Hispanic or Latino | 825 | 863 | 1,688 |  | Black or African American | 456 | 494 | 950 |  | Two or More Races | 424 | 429 | 853 |  | Some Other Race | 344 | 319 | 663 |  
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  |  Total population in Watertown Town |   |  | Total Population: | 31,915 |  | Male Population: | 14,954 |  | Female Population: | 16,961 |  
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  |  Median age in Watertown Town |   |  | Both sexes | 38 |  | Male | 37 |  | Female | 40 |  
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  |  Population in households in Watertown Town |   |  | Total Population: | 31,681 |  | Male Population: | 14,841 |  | Under 5 years: | 921 |  | 5 to 9 years: | 632 |  | 10 to 14 years: | 608 |  | 15 to 17 years: | 348 |  | 18 and 19 years: | 239 |  | 20 years: | 107 |  | 21 years: | 133 |  | 22 to 24 years: | 597 |  | 25 to 29 years: | 1,609 |  | 30 to 34 years: | 1,645 |  | 35 to 39 years: | 1,310 |  | 40 to 44 years: | 1,097 |  | 45 to 49 years: | 1,052 |  | 50 to 54 years: | 1,020 |  | 55 to 59 years: | 899 |  | 60 and 61 years: | 325 |  | 62 to 64 years: | 437 |  | 65 and 66 years: | 245 |  | 67 to 69 years: | 311 |  | 70 to 74 years: | 411 |  | 75 to 79 years: | 365 |  | 80 to 84 years: | 300 |  | 85 years and over: | 230 |  | Female Population: | 16,840 |  | Under 5 years: | 901 |  | 5 to 9 years: | 577 |  | 10 to 14 years: | 551 |  | 15 to 17 years: | 359 |  | 18 and 19 years: | 181 |  | 20 years: | 90 |  | 21 years: | 107 |  | 22 to 24 years: | 700 |  | 25 to 29 years: | 1,942 |  | 30 to 34 years: | 1,697 |  | 35 to 39 years: | 1,346 |  | 40 to 44 years: | 1,080 |  | 45 to 49 years: | 1,153 |  | 50 to 54 years: | 1,156 |  | 55 to 59 years: | 1,089 |  | 60 and 61 years: | 412 |  | 62 to 64 years: | 612 |  | 65 and 66 years: | 327 |  | 67 to 69 years: | 370 |  | 70 to 74 years: | 565 |  | 75 to 79 years: | 598 |  | 80 to 84 years: | 525 |  | 85 years and over: | 502 |  
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  |  Average household size in Watertown Town |   |  | Total: | 2 |  | Under 18 years: | 0 |  | 18 years and over: | 2 |  
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  |  Number of occupied homes in Watertown Town |   |  | Total: | 14,709 |  | Family led homes: | 7,412 |  | Husband-wife family: | 5,690 |  | Other family: | 1,722 |  | Population of male led with no wife present: | 499 |  | Population female led with no husband present: | 1,223 |  | Population of Nonfamily homes: | 7,297 |  | Population living alone: | 5,260 |  | Population not living alone: | 2,037 |  
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  |  Total occupied homes in Watertown Town with people under 18 years old: |   |  | Total: | 14,709 |  | Population of homes with one or more people under 18 years: | 3,043 |  | Population of family homes: | 3,025 |  | Husband-wife family: | 2,334 |  | Under 6 years only: | 1,014 |  | Under 6 years and 6 to 17 years: | 320 |  | 6 to 17 years only: | 1,000 |  | Other family: | 691 |  | Male householder, no wife present: | 152 |  | Under 6 years only: | 48 |  | Under 6 years and 6 to 17 years: | 18 |  | 6 to 17 years only: | 86 |  | Female led with no husband present: | 539 |  | Under 6 years only: | 114 |  | Under 6 years and 6 to 17 years: | 59 |  | 6 to 17 years only: | 366 |  | Nonfamily households: | 18 |  | Male led households: | 8 |  | Under 6 years only: | 1 |  | Under 6 years and 6 to 17 years: | 0 |  | 6 to 17 years only: | 7 |  | Female led householder: | 10 |  | Under 6 years only: | 1 |  | Under 6 years and 6 to 17 years: | 0 |  | 6 to 17 years only: | 9 |  | Households with no people under 18 years: | 11,666 |  | Family households: | 4,387 |  | Husband-wife family: | 3,356 |  | Other family: | 1,031 |  | Male led with no wife present: | 347 |  | Female led with no husband present: | 684 |  | Nonfamily households: | 7,279 |  | Male led householder: | 2,890 |  | Female led householder: | 4,389 |  
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  |  Total number led homes in Watertown Town, by type |   |  | Total Home Population: | 14,709 |  | Population of Family homes: | 7,412 |  | Population of 15 to 24 year olds: | 104 |  | Population of 25 to 34 year olds: | 1,413 |  | Population of 35 to 44 year olds: | 1,654 |  | Population of 45 to 54 year olds: | 1,558 |  | Population of 55 to 59 year olds: | 676 |  | Population of 60 to 64 year olds: | 570 |  | Population of 65 to 74 year olds: | 722 |  | Population of 75 to 84 year olds: | 529 |  | Population of 85 year olds and over: | 186 |  | Population of Nonfamily Homes: | 7,297 |  | Population of 15 to 24 year olds: | 332 |  | Population of 25 to 34 year olds: | 1,864 |  | Population of 35 to 44 year olds: | 1,042 |  | Population of 45 to 54 year olds: | 1,008 |  | Population of 55 to 59 year olds: | 597 |  | Population of 60 to 64 year olds: | 581 |  | Population of 65 to 74 year olds: | 720 |  | Population of 75 to 84 year olds: | 751 |  | Population of 85 year olds and over: | 402 |  
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  |  households in Watertown Town containing people over 60 |   |  | Total Population: | 14,709 |  | Population of homes with one or more people 60 years and over: | 4,913 |  | 1-person household: | 2,290 |  | 2-or-more-person household: | 2,623 |  | Family households: | 2,408 |  | Nonfamily households: | 215 |  | Population of homes with no people 60 years and over: | 9,796 |  | 1-person household: | 2,970 |  | 2-or-more-person household: | 6,826 |  | Family homes: | 5,004 |  | Nonfamily homes: | 1,822 |  
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  |  homes in Watertown Town with multiple generations. |   |  | Total Population: | 14,709 |  | Home has three or more generations: | 294 |  | Home does not have three or more generations: | 14,415 |  
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  |  Unmarried population in Watertown Town under 18 years old in homes |   |  | Total Population: | 4,894 |  | Unmarried partner of home lead present: | 191 |  | In family homes: | 186 |  | Population of male led and male partner homes: | 12 |  | Population of male led and female partner households: | 58 |  | Population of female led and female partner households: | 36 |  | Population of female led and male partner households: | 80 |  | In nonfamily homes: | 5 |  | Population of male led and male partner homes: | 0 |  | Population of male led and female partner homes: | 3 |  | Population of female led and female partner homes: | 0 |  | Population of female led and male partner homes: | 2 |  | No unmarried partner of home lead present: | 4,703 |  | In family homes: | 4,692 |  | Population of husband-wife family homes: | 3,863 |  | Population of male lead with no wife present, family homes: | 144 |  | Population of female lead with no husband present, family homes: | 685 |  | In nonfamily homes: | 11 |  
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  |  Population in families living in Watertown Town |   |  | Total Population: | 21,246 |  | Population Under 18 years: | 4,859 |  | Population 18 years and over: | 16,387 |  
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  |  How long in Watertown Town have lived in one place. |   |  | Total: | 14,709 |  | Population of Owner occupied homes: | 7,360 |  | Family home: | 4,388 |  | Nonfamily homess: | 2,972 |  | Male led home: | 1,077 |  | Living alone: | 831 |  | Not living alone: | 246 |  | Female led home: | 1,895 |  | Living alone: | 1,643 |  | Not living alone: | 252 |  | Population of Renter occupied homes: | 7,349 |  | Family run homes: | 3,024 |  | Husband-wife family: | 2,102 |  | Other family: | 922 |  | Male led with no wife present: | 271 |  | Female led with no husband present: | 651 |  | Nonfamily Homes: | 4,325 |  | Male led homes: | 1,821 |  | Male living alone: | 1,054 |  | Male not living alone: | 767 |  | Female led homes: | 2,504 |  | Females living alone: | 1,732 |  | Females not living alone: | 772 |  
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