Census tract · Hays County
Census Tract 105, Hays County, Texas
Census Tract 105, GEOID 48209010500, in Hays County, Texas, mostly within San Marcos (90% of its census blocks). 4,975 residents in the ACS 2020-2024 5-year estimates (±881); the 2020 Census counted 4,343.
Residents, 2020-2024
4,975
±881 (90% margin)
2020 Census count: 4,343
Median household income
$44,802
±$10,792 (90% margin)
Hays County: $89,097
Median home value
$261,900
±$69,011 (90% margin)
Hays County: $399,800
Median gross rent
$1,507
±$125 (90% margin)
Hays County: $1,495
Where is Census Tract 105?
Census Tract 105 is one of 46 census tracts in Hays County, Texas. It covers 4.93 square miles of land, 881 residents per square mile in 2020. Its GEOID, 48209010500, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| San Marcos | 90% |
8 census tracts border Census Tract 105: Tract 3109.04 in Comal County ($74,792), Tract 101 ($44,216), Tract 103.02 ($43,462), Tract 104.01 ($54,375), Tract 104.02 ($59,208), Tract 106.01 ($62,031), Tract 106.02 ($68,073) and Tract 106.03 ($97,629). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 105?
The 2020-2024 American Community Survey puts Census Tract 105's population at 4,975 (±881) in 2,322 households; the 2020 Census counted 4,343 residents and 2,130 housing units.
| Measure | Tract 105 | San Marcos |
|---|---|---|
| Total population | 4,975 ±881 | 70,897 |
| Households | 2,322 ±340 | 28,013 |
| Average household size | 2.14 ±0.23 | 2.28 |
| Housing units | 2,671 ±332 | 30,349 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 105?
The median resident of Census Tract 105 is 29.0 years old; 11.9% are under 18 and 11.3% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 46.4%, then non-Hispanic white residents at 45.2%. 20.4% of residents were born outside the United States.
| Measure | Tract 105 | San Marcos |
|---|---|---|
| Median age | 29.0 ±3.4 | 25.5 |
| Under 18 years | 11.9% ±3.5 pts | 13.3% |
| 65 years and over | 11.3% ±3.6 pts | 10.8% |
| Hispanic or Latino (any race) | 46.4% ±10.7 pts | 42.2% |
| White alone, not Hispanic | 45.2% ±10.3 pts | 44.6% |
| Black or African American alone, not Hispanic | 1.7% ±1.6 pts | 5.2% |
| Asian alone, not Hispanic | 0.0% ±1.0 pts | 2.1% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.0 pts | 0.1% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.0 pts | 0.0% |
| Two or more races, not Hispanic | 6.3% ±3.4 pts | 3.9% |
| Some other race alone, not Hispanic | 0.5% ±0.5 pts | 1.9% |
| Born outside the United States | 20.4% ±10.4 pts | 9.1% |
| Speak a language other than English at home (age 5+) | 41.6% ±11.4 pts | 27.2% |
| Civilian veterans (age 18+) | 3.5% ±2.4 pts | 4.7% |
| With a disability | 18.5% ±6.3 pts | 15.5% |
| No health insurance coverage | 29.0% ±8.8 pts | 16.4% |
| High school graduate or higher (age 25+) | 92.1% ±5.2 pts | 90.5% |
| Bachelor's degree or higher (age 25+) | 34.6% ±11.2 pts | 38.3% |
| Graduate or professional degree (age 25+) | 13.9% ±8.2 pts | 14.6% |
| Lived in the same house a year earlier | 71.6% ±9.7 pts | 67.8% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Census Tract 105 earn?
Half of the 2,322 households in Census Tract 105 earn less than $44,802 a year (±$10,792), against $89,097 across Hays County: 42nd highest of the county's 46 tracts with a reliable estimate. 21.4% of residents live below the poverty line.
| Measure | Tract 105 | San Marcos |
|---|---|---|
| Median household income | $44,802 ±$10,792 | $51,281 |
| Mean household income | $60,733 ±$11,078 | $66,133 |
| Per capita income | $29,198 ±$4,992 | $27,545 |
| People below the poverty line | 21.4% ±7.0 pts | 26.9% |
| Children under 18 below the poverty line | 27.0% ±24.1 pts | 18.1% |
| Households receiving SNAP | 15.9% ±5.3 pts | 7.0% |
| Households with a computer | 93.6% ±4.2 pts | 96.1% |
| Households with a broadband subscription | 93.4% ±5.8 pts | 85.3% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Census Tract 105?
Owners occupy 12.4% of Census Tract 105's occupied homes and renters 87.6%. The median owner-occupied home is valued at $261,900 by its owner (±$69,011). The median renter pays $1,507 a month including utilities, and 50.2% of renters pay 35% or more of their income on rent.
| Measure | Tract 105 | San Marcos |
|---|---|---|
| Median home value (owner-occupied) | $261,900 ±$69,011 | $310,400 |
| Median gross rent | $1,507 ±$125 | $1,322 |
| Renters paying 35% or more of income on rent | 50.2% ±12.0 pts | 56.1% |
| Median monthly owner costs, with a mortgage | $2,030 ±$481 | $1,899 |
| Owner-occupied homes | 12.4% ±5.2 pts | 30.8% |
| Renter-occupied homes | 87.6% ±5.2 pts | 69.2% |
| Housing units | 2,671 ±332 | 30,349 |
| Single-family detached homes | 25.6% ±6.4 pts | 35.0% |
| Mobile homes | 0.8% ±1.0 pts | 2.5% |
| Built 2020 or later | 4.7% ±5.7 pts | 7.1% |
| Built 2010 to 2019 | 23.2% ±9.1 pts | 25.8% |
| Built 1939 or earlier | 3.0% ±2.2 pts | 2.3% |
| Households with no vehicle | 13.2% ±6.1 pts | 8.1% |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Census Tract 105 get to work?
64.6% of Census Tract 105's workers drive alone. The average trip to work takes 21.9 minutes. The unemployment rate in 2020-2024 averaged 3.9%.
| Measure | Tract 105 | San Marcos |
|---|---|---|
| In the labor force (age 16+) | 79.5% ±5.2 pts | 67.2% |
| Unemployment rate | 3.9% ±2.3 pts | 5.2% |
| Drove alone to work | 64.6% ±11.2 pts | 68.4% |
| Carpooled | 23.1% ±10.4 pts | 11.4% |
| Public transportation | 0.0% ±1.6 pts | 1.3% |
| Walked | 1.4% ±2.2 pts | 4.5% |
| Worked from home | 10.9% ±7.8 pts | 11.1% |
| Mean travel time to work | 21.9 min ±6.0 | 24.0 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
How does Census Tract 105 compare with the other tracts in Hays County?
Among Hays County's tracts with a reliable estimate, Census Tract 105 ranks as shown below (1 = highest).
| Measure | In Hays County | In San Marcos |
|---|---|---|
| Population | 25th of 46 | 7th of 16 |
| Residents per square mile | 21st of 46 | 11th of 16 |
| Median household income | 42nd of 46 | 12th of 16 |
| Per capita income | 36th of 46 | 7th of 16 |
| Median home value | 38th of 42 | 9th of 12 |
| Median gross rent | 26th of 44 | 3rd of 16 |
| Poverty rate | 14th of 29 | 11th of 16 |
| Bachelor's degree or higher | 33rd of 45 | 10th of 15 |
| Median age | 34th of 46 | 6th of 16 |
| Owner-occupied share | 42nd of 42 | 12th of 12 |
The tracts next to it on Hays County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 107.03 | 39th | $45,646±$12,177 · within the margin of this tract |
| Tract 103.09 | 40th | $45,095±$8,998 · within the margin of this tract |
| Tract 107.04 | 41st | $45,094±$19,215 · within the margin of this tract |
| Tract 105 | 42nd | $44,802±$10,792 |
| Tract 101 | 43rd | $44,216±$12,962 · within the margin of this tract |
| Tract 103.02 | 44th | $43,462±$10,171 · within the margin of this tract |
| Tract 102 | 45th | $39,423±$12,704 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 105?
3 of the 18 figures for Census Tract 105 on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections