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Population by Age in San Marcos City
*Base on 2010 Data
| Total population | 83,781 | 100.00% |
| Under 5 years | 7,008 | 8.36% |
| 5 to 9 years | 6,641 | 7.93% |
| 10 to 14 years | 6,075 | 7.25% |
| 15 to 19 years | 6,618 | 7.90% |
| 20 to 24 years | 6,160 | 7.35% |
| 25 to 29 years | 5,911 | 7.06% |
| 30 to 34 years | 6,121 | 7.31% |
| 35 to 39 years | 6,786 | 8.10% |
| 40 to 44 years | 6,419 | 7.66% |
| 45 to 49 years | 5,545 | 6.62% |
| 50 to 54 years | 4,698 | 5.61% |
| 55 to 59 years | 3,943 | 4.71% |
| 60 to 64 years | 3,329 | 3.97% |
| 65 to 69 years | 2,474 | 2.95% |
| 70 to 74 years | 1,831 | 2.19% |
| 75 to 79 years | 1,519 | 1.81% |
| 80 to 84 years | 1,332 | 1.59% |
| 85 years and over | 1,371 | 1.64% |
Male Population in San Marcos City
*Base on 2010 Data
| Male population | 40,957 | 48.89% |
| Under 5 years | 3,522 | 4.20% |
| 5 to 9 years | 3,370 | 4.02% |
| 10 to 14 years | 3,179 | 3.79% |
| 15 to 19 years | 3,203 | 3.82% |
| 20 to 24 years | 3,076 | 3.67% |
| 25 to 29 years | 3,025 | 3.61% |
| 30 to 34 years | 2,972 | 3.55% |
| 35 to 39 years | 3,374 | 4.03% |
| 40 to 44 years | 3,159 | 3.77% |
| 45 to 49 years | 2,815 | 3.36% |
| 50 to 54 years | 2,390 | 2.85% |
| 55 to 59 years | 1,866 | 2.23% |
| 60 to 64 years | 1,511 | 1.80% |
| 65 to 69 years | 1,101 | 1.31% |
| 70 to 74 years | 789 | 0.94% |
| 75 to 79 years | 637 | 0.76% |
| 80 to 84 years | 509 | 0.61% |
| 85 years and over | 459 | 0.55% |
Female Population in San Marcos City
*Base on 2010 Data
| Female population | 42,824 | 51.11% |
| Under 5 years | 3,486 | 4.16% |
| 5 to 9 years | 3,271 | 3.90% |
| 10 to 14 years | 2,896 | 3.46% |
| 15 to 19 years | 3,415 | 4.08% |
| 20 to 24 years | 3,084 | 3.68% |
| 25 to 29 years | 2,886 | 3.44% |
| 30 to 34 years | 3,149 | 3.76% |
| 35 to 39 years | 3,412 | 4.07% |
| 40 to 44 years | 3,260 | 3.89% |
| 45 to 49 years | 2,730 | 3.26% |
| 50 to 54 years | 2,308 | 2.75% |
| 55 to 59 years | 2,077 | 2.48% |
| 60 to 64 years | 1,818 | 2.17% |
| 65 to 69 years | 1,373 | 1.64% |
| 70 to 74 years | 1,042 | 1.24% |
| 75 to 79 years | 882 | 1.05% |
| 80 to 84 years | 823 | 0.98% |
| 85 years and over | 912 | 1.09% |
Median Age in San Marcos City
*Base on 2010 Data
| Both | 32.90% | |
| Male | 31.90% | |
| Female | 33.80% |
Race in San Marcos City
*Base on 2010 Data
| Total | 83,781 | 100.00% |
| Population of one race | 79,486 | 94.87% |
| White | 53,235 | 63.54% |
| Black or African American | 1,967 | 2.35% |
| American Indian and Alaska Native | 591 | 0.71% |
| Asian | 7,518 | 8.97% |
| Asian Indian | 700 | 0.84% |
| Chinese | 1,166 | 1.39% |
| Filipino | 2,817 | 3.36% |
| Japanese | 451 | 0.54% |
| Korean | 410 | 0.49% |
| Vietnamese | 1,175 | 1.40% |
| Other Asian | 799 | 0.95% |
| Native Hawaiian and Other Pacific Islander | 322 | 0.38% |
| Native Hawaiian | 57 | 0.07% |
| Guamanian or Chamorro | 80 | 0.10% |
| Samoan | 126 | 0.15% |
| Other Pacific Islander | 59 | 0.07% |
| Some Other Race | 15,853 | 18.92% |
| Population of Two or More Races | 4,295 | 5.13% |
| White; American Indian and Alaska Native | 347 | 0.41% |
| White; Asian | 1,450 | 1.73% |
| White; Black or African American | 456 | 0.54% |
| White; Some Other Race | 1,053 | 1.26% |
The Population 16 Years in San Marcos City
*Base on 2010 Data
| Total | 62,829 | 100.00% |
| Male | 30,274 | 48.18% |
| Female | 32,555 | 51.82% |
The Population 18 Years in San Marcos City
*Base on 2010 Data
| Total | 60,494 | 100.00% |
| Male | 29,084 | 48.08% |
| Female | 31,410 | 51.92% |
The Population 21 Years in San Marcos City
*Base on 2010 Data
| Total | 55,953 | 100.00% |
| Male | 26,982 | 48.22% |
| Female | 28,971 | 51.78% |
The Population 62 Years in San Marcos City
*Base on 2010 Data
| Total | 10,419 | 100.00% |
| Male | 4,324 | 41.50% |
| Female | 6,095 | 58.50% |
The Population 65 Years in San Marcos City
*Base on 2010 Data
| Total | 8,527 | 100.00% |
| Male | 3,495 | 40.99% |
| Female | 5,032 | 59.01% |
Race (total races tallied) in San Marcos City
*Base on 2010 Data
| White alone or in combination with one or more other races | 56,959 | 64.41% |
| Black or African American alone or in combination with one or more other races | 2,775 | 3.14% |
| American Indian and Alaska Native alone or in combination with one or more other races | 1,176 | 1.33% |
| Asian alone or in combination with one or more other races | 9,503 | 10.75% |
| Native Hawaiian and Other Pacific Islander alone or in combination with one or more other races | 708 | 0.80% |
| Some Other Race alone or in combination with one or more other races | 17,315 | 19.58% |
Hispanic or Latino by Specific Origin in San Marcos City
*Base on 2010 Data
| Total | 83,781 | 100.00% |
| Hispanic or Latino (of any race) | 30,697 | 36.64% |
| Mexican | 27,350 | 32.64% |
| Puerto Rican | 455 | 0.54% |
| Cuban | 170 | 0.20% |
| Other Hispanic or Latino | 2,722 | 3.25% |
| Not Hispanic or Latino | 53,084 | 63.36% |
Hispanic or Latino and Race in San Marcos City
*Base on 2010 Data
| Total | 83,781 | 100.00% |
| Hispanic or Latino | 30,697 | 36.64% |
| White alone | 12,499 | 14.92% |
| Black or African American alone | 211 | 0.25% |
| American Indian and Alaska Native alone | 336 | 0.40% |
| Asian alone | 155 | 0.19% |
| Native Hawaiian and Other Pacific Islander alone | 33 | 0.04% |
| Some Other Race alone | 15,657 | 18.69% |
| Two or More Races | 1,806 | 2.16% |
| Not Hispanic or Latino | 53,084 | 63.36% |
| White alone | 40,736 | 48.62% |
| Black or African American alone | 1,756 | 2.10% |
| American Indian and Alaska Native alone | 255 | 0.30% |
| Asian alone | 7,363 | 8.79% |
| Native Hawaiian and Other Pacific Islander alone | 289 | 0.34% |
| Some Other Race alone | 196 | 0.23% |
| Two or More Races | 2,489 | 2.97% |
Relationship in San Marcos City
*Base on 2010 Data
| Total | 83,781 | 100.00% |
| In households | 82,937 | 98.99% |
| Householder | 27,202 | 32.47% |
| Spouse | 15,242 | 18.19% |
| Child | 26,906 | 32.11% |
| Own child under 18 years | 20,442 | 24.40% |
| Other relatives | 7,136 | 8.52% |
| Under 18 years | 2,390 | 2.85% |
| 65 years and over | 981 | 1.17% |
| Nonrelatives | 6,451 | 7.70% |
| Under 18 years | 441 | 0.53% |
| 65 years and over | 284 | 0.34% |
| Unmarried partner | 1,558 | 1.86% |
| In group quarters | 844 | 1.01% |
| Institutionalized population | 108 | 0.13% |
| Male | 40 | 0.05% |
| Female | 68 | 0.08% |
| Noninstitutionalized population | 736 | 0.88% |
| Male | 290 | 0.35% |
| Female | 446 | 0.53% |
Households by Type in San Marcos City
*Base on 2010 Data
| Subject | Number | Percent |
|---|---|---|
| Total | 27,202 | 100.00% |
| Family households (families) | 19,811 | 72.83% |
| With own children under 18 years | 10,758 | 39.55% |
| Husband-wife family | 15,242 | 56.03% |
| With own children under 18 years | 8,302 | 30.52% |
| Male householder, no wife present | 1,513 | 5.56% |
| With own children under 18 years | 765 | 2.81% |
| Female householder, no husband present | 3,056 | 11.23% |
| With own children under 18 years | 1,691 | 6.22% |
| Nonfamily households | 7,391 | 27.17% |
| Householder living alone | 5,168 | 19.00% |
| Male | 1,957 | 7.19% |
| 65 years and over | 542 | 1.99% |
| Female | 3,211 | 11.80% |
| 65 years and over | 1,828 | 6.72% |
Households with individuals under 18 years in San Marcos City
*Base on 2010 Data
| Total | 11,724 | 43.10% |
Households with individuals under 65 years in San Marcos City
*Base on 2010 Data
| Total | 6,353 | 23.35% |
Average Household Size in San Marcos City
*Base on 2010 Data
| Average household size | 3 | % |
Average Family Size in San Marcos City
*Base on 2010 Data
| Average family size | 3 | % |
Housing Occupancy(Total housing units) in San Marcos City
*Base on 2010 Data
| Total | 28,641 | 100.00% |
| Occupied housing units | 27,202 | 94.98% |
| Vacant housing units | 1,439 | 5.02% |
| For rent | 607 | 2.12% |
| Rented, not occupied | 24 | 0.08% |
| For sale only | 361 | 1.26% |
| Sold, not occupied | 60 | 0.21% |
| For seasonal, recreational, or occasional use | 135 | 0.47% |
| All other vacants | 252 | 0.88% |
Homeowner Vacancy Rate in San Marcos City
*Base on 2010 Data
| Homeowner vacancy rate (percent) | 2.10% |
Rental Vacancy Rate in San Marcos City
*Base on 2010 Data
| Rental vacancy rate (percent) | 5.70% |
Housing Tenure(Occupied housing units) in San Marcos City
*Base on 2010 Data
| Total | 27,202 | 100.00% |
| Owner-occupied housing units | 17,094 | 62.84% |
| Renter-occupied housing units | 10,108 | 37.16% |
Population in Occupied Housing Units by Tenure(Population in occupied housing units) in San Marcos City
*Base on 2010 Data
| Owner-occupied housing units | 50,570 | 60.97% |
| Renter-occupied housing units | 32,367 | 39.03% |
Average Household Size of Occupied Housing Units by Tenure in San Marcos City
*Base on 2010 Data
| Owner occupied | 3 | % |
| Renter occupied | 3 | % |