San Leon, Texas
15 topographic sheets cover this place, the earliest surveyed in 1929 and the latest in 1994. It stands in the Texas City-League City census division. It lies in ZIP code area 77539. It stands on Factory Bayou. The Survey maps it on the Texas City quadrangle. 6,135 people lived here at the 2020 count. It stands 10 feet above sea level.
Population over time
2 figuresSan Leon grew from 4,970 to 6,135 between 2010 and 2020. These are the recorded population figures Wikidata holds for this place, reached through the Geographic Names Information System number this page is keyed on rather than by name, so they belong to this place and not to another of the same name. Most are census counts, but not all are: an early figure may be a founding or settlement estimate, and an estimate published within five years of a census is left out. The change column is computed, and is left blank where more than 20 years separate a figure from the one before it, because a gap that long is not a change between two counts.
| Year | People | Change |
|---|---|---|
| 2010 | 4,970 | |
| 2020 | 6,135 | +1,165 (+23%) |
Topographic sheets covering this place
10 surveys from 15 printed sheetsMatched by testing this settlement's coordinate against the published boundary of every sheet in the United States Geological Survey's historical collection. Each opens the scanned sheet at the Survey.
- 1929 USGS Texas City quadrangle1:24000
- 1932 USGS Texas City quadrangle1:31680, 2 printings
- 1943 USGS Texas City quadrangle1:25000
- 1943 USGS Texas City quadrangle1:24000
- 1950 USGS Houston quadrangle1:250000
- 1954 USGS Texas City quadrangle1:24000, 3 printings
- 1956 USGS Houston quadrangle1:250000, 2 printings
- 1975 USGS Houston quadrangle1:250000, 2 printings
- 1983 USGS Galveston quadrangle1:100000
- 1994 USGS Texas City quadrangle1:24000
Fires near this place
1 since 2010Regional context, not property-specific evidence. The federal wildfire occurrence database lists 1 fire within 5 miles of San Leon in 2010, burning about 200 acres in total. None started naturally. None was recorded as arson. Distance is straight-line from the map coordinates, so a fire counted here may appear on a neighbouring settlement's page as well.
| Reported cause | Fires |
|---|---|
| Missing data/not specified/undetermined | 1 |
The most recent of them, most recent first, with the day each was reported and the service that recorded it.
| Date | Cause | Size | Reported by | Name on the report |
|---|---|---|---|---|
| 12 December 2010 | Missing data/not specified/undetermined | 200 acres | Texas A & M Forest Service | 146 |
Settlements close enough to share some of these fires:
Storms near this place
9 since 1996Regional context, not property-specific evidence. The National Weather Service names San Leon in 9 storm reports between 1996 and 2025: 4 thunderstorm wind, 1 hail, 1 waterspout, 1 lightning. The reports record 3 deaths and 1 injury. Each account below is quoted exactly as the forecast office filed it, from the NOAA Storm Events Database, and each date opens the federal record of that event.
| When | Event | Place named | Harm | What the report says |
|---|---|---|---|---|
| August 2017 | Flash Flood | San Leon | 3 killed, $10,000,000,000 | There were numerous water rescues across western and central Galveston County. Flood waters completely inundated hundreds to thousands of homes and businesses in League City, Dickinson and Santa Fe. Approximately 7,000 homes and 125 businesses were impacted by flood waters across the county. Clear Creek measured record levels that lead to the widespread flooding throughout Friendswood and League City. Major flooding occurred along the Dickinson Bayou; from Cemetery Road to east of Highway 3 along FM 517. Flood waters inundated sections of Interstate 45, Bay Area Boulevard, FM 528, FM 518 and numerous primary and secondary county roads. Approximately 7,000 homes and 125 businesses were impacted by flood waters across the county. Clear Creek measured record levels that lead to the widespread flooding throughout Friendswood and League City. Major flooding occurred along the Dickinson Bayou; from Cemetery Road to east of Highway 3 along FM 517. Flood waters inundated sections of Interstate 45, Bay Area Boulevard, FM 528, FM 518 and numerous primary and secondary county roads. There were numerous water rescues and flooded homes within the Friendswood, Pearland and Dickinson areas. |
| July 2005 | Lightning | San Leon | 1 hurt, $10,000 | Lightning strike victim was near a circuit breaker box when the strike occurred. Twenty-nine others in the home were not injured. |
| May 1999 | Waterspout | San Leon | $75,000 | Boat destroyed by waterspout at Eagle Point. |
| July 2000 | Thunderstorm Wind | San Leon | $15,000 | Power lines down. |
| April 2024 | Thunderstorm Wind | San Leon | $10,000 | There was some wind damage across parts of San Leon and Bacliff. |
| April 1996 | Hail | San Leon | $5,000 | no account filed |
| March 2025 | Thunderstorm Wind | San Leon | - | Galveston County emergency manager reported damage to a manufactured home at 427 9th street in San Leon. Photos shared showed siding peeled off with a corner wall blown out. Part of the metal roofing was also peeled off. The raised foundation also appeared to be bent and or warped from the strong winds. |
| February 2017 | Funnel Cloud | San Leon | - | A funnel cloud that was sighted over the city became a waterspout when it moved into Galveston Bay. |
| April 2009 | Thunderstorm Wind | San Leon | - | Severe wind gust measured at Eagle Point PORTS buoy. |
Nearest settlements
The eight closest, with where each one stands in the county. Distances are straight-line, computed from the Geographic Names Information System coordinates.
| Map | Place | Distance | Sheets |
|---|---|---|---|
| Chase Park | 3.8 miles | 15 | |
| Bacliff | 4.1 miles | 15 | |
| Bayview | 4.9 miles | 19 | |
| Seagate | 5.9 miles | 19 | |
| Bay Ridge | 6.1 miles | 19 | |
| Kemah Park | 6.3 miles | 19 | |
| Bay Breeze | 6.4 miles | 19 | |
| Heights | 6.5 miles | 15 |
Elsewhere
Matched on this settlement's Geographic Names Information System number rather than its name, so it cannot be a different place of the same name in another state.
| Wikipedia article on San Leon | An encyclopaedic summary. Its text is share-alike, so it is linked here rather than copied. |
| Wikidata item Q981360 | The structured record the population and elevation above come from. Public domain (CC0). |
Provenance
This settlement is recorded in the Geographic Names Information System as feature 1346420. The sheet list is computed by point-in-boundary test against the United States Geological Survey's historical topographic inventory. Both are works of the United States government and carry no copyright under 17 U.S.C. 105.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.









