Are There Snakes in Houston?
Yes, snakes are very common throughout Houston and its surrounding coastal plain. From Buffalo Bayou winding through downtown to suburban neighborhoods and natural preserves, snakes thrive in the city's warm, humid climate and abundant waterways. Houston is home to over twenty native snake species, including several venomous ones that live near water and in yards.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 23, 2026.
Eastern Hognose Snake · Sam Kieschnick CC BY
Plain-bellied Watersnake · Mila Turov CC BY
Eastern Copperhead · Alan Rockefeller CC BY
- 8
- species recorded
- 32
- GBIF records
- April, May, June
- peak months
Yes, snakes are in Texas. Next you'll want:
Verified species, source iNaturalist
77 types of snakes recorded in Texas
77 snake species have a verified observation record in Texas across snakes (suborder Serpentes), each with at least 10 confirmed sightings. The 50 most frequently recorded are shown below.
1 of the 50 shown is recorded as introduced to Texas rather than native.
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Also recorded in Texas
| # | Species | Scientific name | Records |
|---|---|---|---|
| 13 | Banded WatersnakeNativeNerodia fasciata | Nerodia fasciata | 5,985 |
| 14 | Broad-banded CopperheadNativeAgkistrodon laticinctus | Agkistrodon laticinctus | 4,683 |
| 15 | Texas CoralsnakeNativeMicrurus tener | Micrurus tener | 4,063 |
| 16 | Gopher SnakeNativePituophis catenifer | Pituophis catenifer | 4,053 |
| 17 | Great Plains RatsnakeNativePantherophis emoryi | Pantherophis emoryi | 3,354 |
| 18 | Eastern Hognose SnakeNativeHeterodon platirhinos | Heterodon platirhinos | 3,280 |
| 19 | North American RacerNativeColuber constrictor | Coluber constrictor | 3,267 |
| 20 | Texas Blind SnakeNativeRena dulcis | Rena dulcis | 2,769 |
| 21 | Texas Patch-nosed SnakeNativeSalvadora lineata | Salvadora lineata | 2,014 |
| 22 | Speckled KingsnakeNativeLampropeltis holbrooki | Lampropeltis holbrooki | 1,702 |
| 23 | Central American Indigo SnakeNativeDrymarchon melanurus | Drymarchon melanurus | 1,620 |
| 24 | Black-necked Garter SnakeNativeThamnophis cyrtopsis | Thamnophis cyrtopsis | 1,526 |
| 25 | Flat-headed SnakeNativeTantilla gracilis | Tantilla gracilis | 1,526 |
| 26 | Eastern Black-tailed RattlesnakeNativeCrotalus ornatus | Crotalus ornatus | 1,526 |
| 27 | Long-nosed SnakeNativeRhinocheilus lecontei | Rhinocheilus lecontei | 1,436 |
| 28 | Chihuahuan NightsnakeNativeHypsiglena jani | Hypsiglena jani | 1,286 |
| 29 | Glossy SnakeNativeArizona elegans | Arizona elegans | 1,115 |
| 30 | Great Plains Ground SnakeSonora episcopa | Sonora episcopa | 951 |
| 31 | Ring-necked SnakeNativeDiadophis punctatus | Diadophis punctatus | 941 |
| 32 | Mojave RattlesnakeNativeCrotalus scutulatus | Crotalus scutulatus | 936 |
| 33 | Trans-pecos RatsnakeNativeBogertophis subocularis | Bogertophis subocularis | 922 |
| 34 | Mississippi Green WatersnakeNativeNerodia cyclopion | Nerodia cyclopion | 825 |
| 35 | Prairie KingsnakeNativeLampropeltis calligaster | Lampropeltis calligaster | 823 |
| 36 | Timber RattlesnakeNativeCrotalus horridus | Crotalus horridus | 818 |
| 37 | Prairie RattlesnakeNativeCrotalus viridis | Crotalus viridis | 759 |
| 38 | Rock RattlesnakeNativeCrotalus lepidus | Crotalus lepidus | 736 |
| 39 | Lined SnakeNativeTropidoclonion lineatum | Tropidoclonion lineatum | 629 |
| 40 | Desert KingsnakeNativeLampropeltis splendida | Lampropeltis splendida | 597 |
| 41 | Common Garter SnakeNativeThamnophis sirtalis | Thamnophis sirtalis | 571 |
| 42 | Striped WhipsnakeNativeMasticophis taeniatus | Masticophis taeniatus | 567 |
| 43 | Saltmarsh SnakeNativeNerodia clarkii | Nerodia clarkii | 552 |
| 44 | Schott's WhipsnakeNativeMasticophis schotti | Masticophis schotti | 522 |
| 45 | Graham's Crawfish SnakeNativeRegina grahamii | Regina grahamii | 517 |
| 46 | Baird's RatsnakeNativePantherophis bairdi | Pantherophis bairdi | 504 |
| 47 | Western MassasaugaNativeSistrurus tergeminus | Sistrurus tergeminus | 490 |
| 48 | Brahminy BlindsnakeIntroducedIndotyphlops braminus | Indotyphlops braminus | 360 |
| 49 | Western MilksnakeNativeLampropeltis gentilis | Lampropeltis gentilis | 357 |
| 50 | Plains Hognose SnakeNativeHeterodon nasicus | Heterodon nasicus | 333 |
Plus 27 more established snakes species beyond the top 50. And 9 more recorded only rarely (fewer than 10 verified sightings). Counts from verified iNaturalist observations. Photos by iNaturalist observers, reused under the licence each observer chose.
Real sighting data, source iNaturalist
187,567 verified observations on iNaturalist of snake have been recorded in Texas, most often in April, May, June.
When snake are recorded in Texas
Yes, snakes are very common throughout Houston and its surrounding coastal plain. From Buffalo Bayou winding through downtown to suburban neighborhoods and natural preserves, snakes thrive in the city's warm, humid climate and abundant waterways. Houston is home to over twenty native snake species, including several venomous ones that live near water and in yards.
Where Snakes Live in Houston
Snakes inhabit nearly every ecosystem throughout Houston, from bayous to suburban yards and parks. Buffalo Bayou runs through central Houston and provides ideal habitat for water snakes, rat snakes, and occasional copperheads. Hermann Park in central Houston contains snakes in its woodlands, gardens, and pond areas. Mercer Arboretum and Botanic Gardens north of downtown provides diverse habitat with water features and native plants attracting multiple species. Armand Bayou Nature Preserve southeast of Houston contains thriving populations in marshes, ponds, and woodlands. San Jacinto River and its associated wetlands support abundant snake populations. Neighborhood parks across Houston, from Pearland to Spring, host snakes in green spaces and storm drains. Residential yards near bayous or with dense vegetation frequently attract snakes seeking shelter and food. The Port of Houston's marshland areas and coastal preserves host water snakes and other species. Visitthe Texas snake guidefor information about all species found in the region.
When Snakes Are Active in Houston
Houston snakes remain active nearly year-round due to warm, humid subtropical climate with mild winters. Activity peaks from March through November, with reduced but continued movement during mild winter months. Spring arrival begins in February as snakes emerge from dormancy and seek mates and food. Late spring and summer, from May through August, bring maximum activity as warm temperatures and high humidity increase snake movement. Water snakes remain especially active during warm months when prey is abundant. Fall remains active through November as snakes prepare for cooler weather. Winter dormancy in Houston is brief compared to northern cities; snakes may emerge on warm winter days. Humidity and rainfall throughout the year keep snakes hydrated and active. After heavy rains, snakes move actively through wet grass and across pavement seeking higher ground. Warm evening hours, especially after sunset, produce snake activity year-round. TheTexas wildlife hubprovides detailed seasonal information.
How to Identify Houston Snakes
Houston snakes range from small garter snakes to large rat snakes and dangerous water moccasins. Garter snakes, abundant throughout the city, reach two feet long with three pale stripes and yellow or orange spots on dark sides. Water snakes, common near bayous and parks, grow two to three feet, have brown or olive bodies with dark crossband patterns or uniform coloring, and non-venomous pupils. Rat snakes in Houston range gray to brown to orange, reaching three to six feet, with round pupils and calm demeanor. Copperheads, venomous and dangerous, are two to three feet, heavy-bodied, with copper or tan hourglass-shaped crossbands and vertical pupils. Water moccasins, also called cottonmouths, are venomous, two to three feet long, dark bodied with subtle patterns, vertical pupils, and open mouths showing white interior when threatened. Kingsnakes are glossy black with thin white or yellow bands. Water snakes and moccasins are sometimes confused; water snakes have round pupils while moccasins have vertical pupils. Checkthe Houston snake guidefor detailed identification photos.
Where Sightings Concentrate
Snake sightings in Houston concentrate in and near water features and green spaces. Buffalo Bayou consistently produces snake encounters, especially along downtown trails and near Hogg Bird Sanctuary. Hermann Park sees frequent reports, particularly in wooded areas and along its lagoons. Armand Bayou Nature Preserve hosts many sightings in its marsh areas, where water snakes hunt actively. Mercer Arboretum produces regular sightings in its ponds and naturalized areas. San Jacinto River and its tributaries throughout greater Houston host abundant populations. Bayou parks throughout neighborhoods like Pearland, Spring, and The Woodlands see snakes near water and in adjacent vegetation. Residential yards near bayous or with water features regularly attract snakes seeking prey. Storm drains and creek beds passing through neighborhoods provide travel corridors for snakes. Manicured parks like Memorial Park see fewer snakes but occasional sightings still occur. For wildlife viewing information, visitthe national wildlife hub.
Snake Behavior and Diet
Houston snakes have diverse hunting strategies suited to the city's warm, wet ecosystem. Garter snakes eat frogs, fish, earthworms, and insects throughout the year. Water snakes hunt fish, crustaceans, and frogs in bayous, ponds, and slower river sections. Rat snakes consume mice, rats, and birds both on the ground and in trees. Copperheads hunt mice and other small mammals, using heat-sensing pits to detect prey. Water moccasins hunt fish, frogs, and crustaceans from the water's edge. Most snakes hunt actively during cooler parts of the day and rest during midday heat. Snakes shed skin multiple times yearly as they grow, leaving behind translucent shed skins. Mating season peaks in spring with males engaging in pheromone trails to find females. Most Houston snakes give birth to live young, adaptations to the humid climate. Young snakes often gather in warm spots like under leaves and logs. For more on snake in Texas, see ourTexas snake guide.
Safety and Coexistence
Houston snakes, including venomous species, cause bites only when threatened, stepped on, or cornered. If you encounter any snake, simply back away and create distance. Do not attempt to capture, kill, or corner the snake. Wear closed-toe boots when walking through grass or near water, where snakes may be hiding. Check shoes, gloves, and dark spaces before using them. Remove rodent food sources to reduce snake prey and discourage snakes from yards. Seal foundation cracks and gaps to prevent snakes from entering homes. Keep vegetation trimmed and remove brush piles offering shelter. Install drain covers to prevent snakes from using storm drains. If a snake enters your home, open windows and doors to allow escape. Use a broom to gently guide it toward an exit. Do not attempt to handle snakes without protective equipment. Venomous snake bites are treatable with prompt medical care. Snakes are protected by Texas law and should not be harmed. Teaching children about snakes reduces fear and promotes respectful coexistence. You can also browseTexas wildlife.
Similar Species You Might Confuse
Houston residents sometimes misidentify snakes or confuse them with other animals. Water snakes and water moccasins are frequently confused because both live in water, but water snakes are harmless while moccasins are venomous. The key difference is eye pupils; water snakes have round pupils while moccasins have vertical pupils shaped like a cat's eye. Young rat snakes and copperheads can look similar with patterning, but rat snakes have round pupils and gentle demeanor while copperheads have vertical pupils and triangular heads. Garter snakes and some water snakes can appear similar from a distance. Lizards, particularly young fence lizards, are occasionally mistaken for snakes by nervous residents. Caterpillars, certain insects, and worms can appear snake-like in movement or shape. Garden hoses left in grass sometimes fool quick-glance snake identification. Rope coiled in sheds or yards occasionally looks like a snake. Taking a photograph of the head and pupils allows certain identification. Most Houston snakes are harmless, and maintaining safe distance allows observation without risk.
Frequently Asked Questions
Are there deadly snakes in Houston? Yes. Copperheads and water moccasins are venomous, though bites are rare. Coral snakes exist in Texas but are extremely rare in Houston. What should I do if a snake bites me? Seek immediate medical attention. Medical professionals can administer appropriate treatment. How can I tell if a snake is venomous? Venomous snakes have vertical pupils like a cat's eye, while harmless snakes have round pupils. Are snakes in pools dangerous? Snakes may enter pools to drink but rarely attack. Turn off pool pumps and allow the snake to leave. Can I keep the snake that's in my yard? Most native snakes are protected. Simple relocation to a nearby park or natural area allows the snake to survive while keeping it from your property.
Gear and field guides
Plan your trip
Best time to see snake in Texas: April, May, June
See the month-by-month sighting calendar.
Plan your snake sighting in Texas
32 verified snake records have been logged in Texas, most recently in 2013. See the GBIF records.
Where to look in Texas
- Amistad National Recreation Area · Wildlife Watching, Birdwatching · Find hotels
- Big Bend National Park · Wildlife Watching, Birdwatching · Find hotels
- Big Thicket National Preserve · Wildlife Watching, Birdwatching · Find hotels
- Chamizal National Memorial · Wildlife Watching, Birdwatching · Find hotels
- Fort Davis National Historic Site · Wildlife Watching, Birdwatching · Find hotels
- Guadalupe Mountains National Park · Wildlife Watching, Birdwatching · Find hotels
Keep exploring
More places to see snake
More wildlife in Texas