Population Demographics for Marietta, Ohio in 2020, 2019 
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  |  Total population in Marietta |   |  | Total Population: | 14,085 |  | Male Population: | 6,608 |  | Female Population: | 7,477 |  
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  |  Median age in Marietta |   |  | Both sexes | 39 |  | Male | 35 |  | Female | 42 |  
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  |  Population in households in Marietta |   |  | Total Population: | 12,500 |  | Male Population: | 5,873 |  | Under 5 years: | 428 |  | 5 to 9 years: | 392 |  | 10 to 14 years: | 332 |  | 15 to 17 years: | 225 |  | 18 and 19 years: | 131 |  | 20 years: | 71 |  | 21 years: | 86 |  | 22 to 24 years: | 276 |  | 25 to 29 years: | 408 |  | 30 to 34 years: | 356 |  | 35 to 39 years: | 326 |  | 40 to 44 years: | 342 |  | 45 to 49 years: | 374 |  | 50 to 54 years: | 451 |  | 55 to 59 years: | 452 |  | 60 and 61 years: | 147 |  | 62 to 64 years: | 198 |  | 65 and 66 years: | 98 |  | 67 to 69 years: | 141 |  | 70 to 74 years: | 229 |  | 75 to 79 years: | 158 |  | 80 to 84 years: | 135 |  | 85 years and over: | 117 |  | Female Population: | 6,627 |  | Under 5 years: | 373 |  | 5 to 9 years: | 352 |  | 10 to 14 years: | 338 |  | 15 to 17 years: | 193 |  | 18 and 19 years: | 148 |  | 20 years: | 90 |  | 21 years: | 68 |  | 22 to 24 years: | 308 |  | 25 to 29 years: | 436 |  | 30 to 34 years: | 363 |  | 35 to 39 years: | 357 |  | 40 to 44 years: | 348 |  | 45 to 49 years: | 454 |  | 50 to 54 years: | 531 |  | 55 to 59 years: | 514 |  | 60 and 61 years: | 167 |  | 62 to 64 years: | 217 |  | 65 and 66 years: | 128 |  | 67 to 69 years: | 188 |  | 70 to 74 years: | 288 |  | 75 to 79 years: | 256 |  | 80 to 84 years: | 283 |  | 85 years and over: | 227 |  
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  |  Average household size in Marietta |   |  | Total: | 2 |  | Under 18 years: | 0 |  | 18 years and over: | 1 |  
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  |  Number of occupied homes in Marietta |   |  | Total: | 5,828 |  | Family led homes: | 3,215 |  | Husband-wife family: | 2,211 |  | Other family: | 1,004 |  | Population of male led with no wife present: | 249 |  | Population female led with no husband present: | 755 |  | Population of Nonfamily homes: | 2,613 |  | Population living alone: | 2,178 |  | Population not living alone: | 435 |  
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  |  Total occupied homes in Marietta with people under 18 years old: |   |  | Total: | 5,828 |  | Population of homes with one or more people under 18 years: | 1,473 |  | Population of family homes: | 1,449 |  | Husband-wife family: | 777 |  | Under 6 years only: | 194 |  | Under 6 years and 6 to 17 years: | 180 |  | 6 to 17 years only: | 403 |  | Other family: | 672 |  | Male householder, no wife present: | 156 |  | Under 6 years only: | 48 |  | Under 6 years and 6 to 17 years: | 22 |  | 6 to 17 years only: | 86 |  | Female led with no husband present: | 516 |  | Under 6 years only: | 154 |  | Under 6 years and 6 to 17 years: | 84 |  | 6 to 17 years only: | 278 |  | Nonfamily households: | 24 |  | Male led households: | 20 |  | Under 6 years only: | 2 |  | Under 6 years and 6 to 17 years: | 2 |  | 6 to 17 years only: | 16 |  | Female led householder: | 4 |  | Under 6 years only: | 1 |  | Under 6 years and 6 to 17 years: | 0 |  | 6 to 17 years only: | 3 |  | Households with no people under 18 years: | 4,355 |  | Family households: | 1,766 |  | Husband-wife family: | 1,434 |  | Other family: | 332 |  | Male led with no wife present: | 93 |  | Female led with no husband present: | 239 |  | Nonfamily households: | 2,589 |  | Male led householder: | 1,029 |  | Female led householder: | 1,560 |  
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  |  Total number led homes in Marietta, by type |   |  | Total Home Population: | 5,828 |  | Population of Family homes: | 3,215 |  | Population of 15 to 24 year olds: | 181 |  | Population of 25 to 34 year olds: | 504 |  | Population of 35 to 44 year olds: | 571 |  | Population of 45 to 54 year olds: | 646 |  | Population of 55 to 59 year olds: | 334 |  | Population of 60 to 64 year olds: | 283 |  | Population of 65 to 74 year olds: | 376 |  | Population of 75 to 84 year olds: | 245 |  | Population of 85 year olds and over: | 75 |  | Population of Nonfamily Homes: | 2,613 |  | Population of 15 to 24 year olds: | 225 |  | Population of 25 to 34 year olds: | 307 |  | Population of 35 to 44 year olds: | 226 |  | Population of 45 to 54 year olds: | 418 |  | Population of 55 to 59 year olds: | 269 |  | Population of 60 to 64 year olds: | 220 |  | Population of 65 to 74 year olds: | 352 |  | Population of 75 to 84 year olds: | 374 |  | Population of 85 year olds and over: | 222 |  
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  |  households in Marietta containing people over 60 |   |  | Total Population: | 5,828 |  | Population of homes with one or more people 60 years and over: | 2,265 |  | 1-person household: | 1,113 |  | 2-or-more-person household: | 1,152 |  | Family households: | 1,079 |  | Nonfamily households: | 73 |  | Population of homes with no people 60 years and over: | 3,563 |  | 1-person household: | 1,065 |  | 2-or-more-person household: | 2,498 |  | Family homes: | 2,136 |  | Nonfamily homes: | 362 |  
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  |  homes in Marietta with multiple generations. |   |  | Total Population: | 5,828 |  | Home has three or more generations: | 124 |  | Home does not have three or more generations: | 5,704 |  
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  |  Unmarried population in Marietta under 18 years old in homes |   |  | Total Population: | 2,630 |  | Unmarried partner of home lead present: | 356 |  | In family homes: | 340 |  | Population of male led and male partner homes: | 1 |  | Population of male led and female partner households: | 122 |  | Population of female led and female partner households: | 14 |  | Population of female led and male partner households: | 203 |  | In nonfamily homes: | 16 |  | Population of male led and male partner homes: | 0 |  | Population of male led and female partner homes: | 16 |  | Population of female led and female partner homes: | 0 |  | Population of female led and male partner homes: | 0 |  | No unmarried partner of home lead present: | 2,274 |  | In family homes: | 2,256 |  | Population of husband-wife family homes: | 1,487 |  | Population of male lead with no wife present, family homes: | 118 |  | Population of female lead with no husband present, family homes: | 651 |  | In nonfamily homes: | 18 |  
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  |  Population in families living in Marietta |   |  | Total Population: | 9,001 |  | Population Under 18 years: | 2,576 |  | Population 18 years and over: | 6,425 |  
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  |  How long in Marietta have lived in one place. |   |  | Total: | 5,828 |  | Population of Owner occupied homes: | 3,190 |  | Family home: | 2,111 |  | Nonfamily homess: | 1,079 |  | Male led home: | 407 |  | Living alone: | 320 |  | Not living alone: | 87 |  | Female led home: | 672 |  | Living alone: | 592 |  | Not living alone: | 80 |  | Population of Renter occupied homes: | 2,638 |  | Family run homes: | 1,104 |  | Husband-wife family: | 484 |  | Other family: | 620 |  | Male led with no wife present: | 128 |  | Female led with no husband present: | 492 |  | Nonfamily Homes: | 1,534 |  | Male led homes: | 642 |  | Male living alone: | 498 |  | Male not living alone: | 144 |  | Female led homes: | 892 |  | Females living alone: | 768 |  | Females not living alone: | 124 |  
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