Census-designated place · Texas
San Leon, Texas
San Leon, census-designated place, in Galveston County, Texas. San Leon had 6,458 people in the ACS 2020-2024 5-year estimates (±727). GEOID 4865564.
Residents, 2020-2024
6,458
±727 (90% margin)
2020 Census count: 6,135
Median household income
$75,446
±$18,703 (90% margin)
Texas: $78,476
Median home value
$183,100
±$49,850 (90% margin)
Texas: $283,800
Median gross rent
$989
±$294 (90% margin)
Texas: $1,403
Where is San Leon and what county is it in?
San Leon is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Galveston County, Texas. It covers 4.8 square miles of land, 1,291 residents per square mile in 2020.
San Leon is in the Houston-Pasadena-The Woodlands, TX metropolitan statistical area, which takes in 10 counties (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in San Leon, and is it growing?
The 2020-2024 American Community Survey puts San Leon's population at 6,458 (±727). The 2020 Census counted 6,135 residents.
The Census Bureau publishes yearly population estimates for incorporated places only; San Leon is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | San Leon | Galveston County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 6,458 ±727 | 358,990 | no clear change |
| Households | 2,660 ±360 | 140,660 | +702 |
| Average household size | 2.43 ±0.22 | 2.51 | no clear change |
| Housing units | 3,094 ±361 | 161,868 | +546 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in San Leon?
The median resident of San Leon is 44.7 years old; 17.3% are under 18 and 13.7% are 65 or older. The largest group is non-Hispanic white residents at 51.3%, then Hispanic or Latino residents (of any race) at 43.9%. 19.6% of residents were born outside the United States.
| Measure | San Leon | Galveston County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 44.7 ±4.7 | 38.8 | no clear change |
| Under 18 years | 17.3% ±4.1 pts | 23.6% | – |
| 65 years and over | 13.7% ±4.7 pts | 15.8% | – |
| Male | 51.3% ±5.7 pts | 49.3% | – |
| Hispanic or Latino (any race) | 43.9% ±9.3 pts | 26.4% | no clear change |
| White alone, not Hispanic | 51.3% ±8.7 pts | 54.0% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±0.8 pts | 11.9% | – |
| Asian alone, not Hispanic | 2.4% ±2.3 pts | 3.4% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.1% ±0.2 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.2% ±0.4 pts | 0.1% | – |
| Two or more races, not Hispanic | 1.9% ±2.3 pts | 3.7% | – |
| Some other race alone, not Hispanic | 0.0% ±0.8 pts | 0.5% | – |
| Born outside the United States | 19.6% ±6.1 pts | 10.2% | no clear change |
| Speak a language other than English at home (age 5+) | 38.8% ±6.9 pts | 20.5% | – |
| Civilian veterans (age 18+) | 6.7% ±3.6 pts | 7.3% | – |
| With a disability | 12.0% ±5.0 pts | 13.6% | – |
| No health insurance coverage | 36.6% ±10.9 pts | 13.6% | no clear change |
| High school graduate or higher (age 25+) | 68.5% ±7.0 pts | 89.9% | – |
| Bachelor's degree or higher (age 25+) | 12.6% ±4.2 pts | 34.8% | no clear change |
| Graduate or professional degree (age 25+) | 6.3% ±3.5 pts | 11.6% | – |
| Lived in the same house a year earlier | 85.5% ±7.1 pts | 86.1% | – |
| Moved from another state in the past year | 1.4% ±2.1 pts | 1.6% | – |
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 San Leon earn?
Half of San Leon's 2,660 households earn less than $75,446 a year (±$18,703), against $86,105 in Galveston County and $78,476 in Texas. In 2015-2019 the median was $48,664 in 2024 dollars, so it rose by $26,782 after inflation. 8.5% of residents live below the poverty line.
| Measure | San Leon | Galveston County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $75,446 ±$18,703 | $86,105 | +$26,782 |
| Mean household income | $87,226 ±$11,630 | $114,254 | – |
| Per capita income | $36,456 ±$4,756 | $44,946 | +$9,008 |
| People below the poverty line | 8.5% ±5.3 pts | 11.7% | −26.3 pts |
| Children under 18 below the poverty line | 13.4% ±15.8 pts | 14.6% | – |
| Households receiving SNAP | 7.1% ±5.2 pts | 10.5% | – |
| Households with a computer | 95.2% ±5.1 pts | 97.0% | – |
| Households with a broadband subscription | 87.9% ±6.8 pts | 93.2% | – |
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 San Leon?
Owners occupy 87.8% of San Leon's occupied homes and renters 12.2%. The median owner-occupied home is valued at $183,100 by its owner (±$49,850). The median renter pays $989 a month including utilities, and 64.0% of renters pay 35% or more of their income on rent.
| Measure | San Leon | Galveston County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $183,100 ±$49,850 | $314,600 | no clear change |
| Median gross rent | $989 ±$294 | $1,404 | no clear change |
| Renters paying 35% or more of income on rent | 64.0% ±27.5 pts | 45.3% | no clear change |
| Median monthly owner costs, with a mortgage | $1,983 ±$376 | $2,245 | – |
| Owner-occupied homes | 87.8% ±5.6 pts | 67.6% | +17.7 pts |
| Renter-occupied homes | 12.2% ±5.6 pts | 32.4% | – |
| Housing units | 3,094 ±361 | 161,868 | +546 |
| Homeowner vacancy rate | 0.0% ±2.1 pts | 1.5% | – |
| Rental vacancy rate | 9.8% ±13.3 pts | 8.9% | – |
| Single-family detached homes | 58.9% ±9.6 pts | 71.6% | – |
| Mobile homes | 34.3% ±9.0 pts | 3.7% | – |
| Built 2020 or later | 3.6% ±3.6 pts | 2.7% | – |
| Built 2010 to 2019 | 22.5% ±7.0 pts | 17.1% | – |
| Built 1939 or earlier | 1.0% ±1.6 pts | 5.2% | – |
| Households with no vehicle | 4.3% ±3.9 pts | 5.4% | – |
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 San Leon work and get to work?
62.8% of San Leon's workers drive alone and 11.2% work from home. The average trip to work takes 32.5 minutes.
| Measure | San Leon | Galveston County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 67.7% ±6.8 pts | 63.9% | – |
| Unemployment rate | 11.1% ±7.9 pts | 5.7% | – |
| Drove alone to work | 62.8% ±11.8 pts | 77.2% | – |
| Carpooled | 22.8% ±8.9 pts | 7.4% | – |
| Public transportation | 0.0% ±1.6 pts | 0.5% | – |
| Walked | 0.5% ±0.7 pts | 1.4% | – |
| Worked from home | 11.2% ±6.7 pts | 11.7% | – |
| Mean travel time to work | 32.5 min ±8.8 | 27.9 min | no clear change |
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 census tracts are in San Leon?
1 census tract lies mostly in San Leon, and 2 more reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 7218Galveston County | 5,890 | $76,886 |
| Tract 7217.03Galveston County | 3,541 | $58,299 |
| Tract 9901Galveston County | 0 | not published |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in San Leon) · Census block assignment files
How does San Leon compare with other places in Texas?
San Leon ranks 355th of 933 places in Texas with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 360th | 979 |
| Residents per square mile | 391st | 979 |
| Median household income | 355th | 933 |
| Per capita income | 358th | 978 |
| Median home value | 530th | 950 |
| Median gross rent | 551st | 852 |
| Poverty rate | 570th | 716 |
| Bachelor's degree or higher | 725th | 877 |
| Median age | 145th | 973 |
| Owner-occupied share | 144th | 973 |
| Work from home | 301st | 557 |
| Travel time to work | 179th | 976 |
San Leon's figures with every place in Texas (CSV)
Every place in Texas, sortable · Compare San Leon with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for San Leon?
17 of the 57 figures for San Leon 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for San Leon are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.