5 locations in Texas checked against the rules of the agency that manages each one: 3 allowed, 2 prohibited. Each page gives the permit requirements, limits, restrictions and penalties, with the primary sources it was checked against.
Rules last checked between May 2026 and July 2026 · State overview updated September 2026
Texas lets you detect most of its Gulf beaches and bans detecting in almost every state park. That catches visitors out, because on the coast the two sit right next to each other. The city beach at Port Aransas runs straight into Mustang Island State Park. On Galveston Island, the public beaches and Galveston Island State Park share the same sand under opposite rules. And at the south end of Mustang Island, the state park gives way to Padre Island National Seashore, where under federal law even carrying an assembled detector is prohibited (see our 36 CFR 2.1 guide).
Two layers apply almost everywhere. The landowner's rule decides whether you can swing a detector at all. The Texas Antiquities Code decides what you can keep (our Texas Antiquities Code guide covers it in full). It makes pre-20th-century shipwrecks and "treasure imbedded in the earth" on state land, tidelands and submerged land the property of the State of Texas. On the Texas coast, which has seen wrecks from the 1554 Spanish plate fleet onward, that second layer matters more than detectorists from inland states expect.
Texas metal detecting rules by landowner
Where
Detecting allowed?
Rule
Penalty
City and county Gulf beaches (Galveston, Port Aransas, South Padre Island)
Generally yes, where no local ordinance bans it
No statewide ban. The Open Beaches Act (Nat. Res. Code ch. 61) guarantees public access to the public beach; check the city or county code for your stretch
Local ordinance, if any; Antiquities Code for historic finds
Texas state parks (TPWD)
No, except by permit
31 TAC § 59.134(i): "It is an offense for any person to operate or use a metal detector, except as authorized by permit." TPWD publishes no recreational detecting permit
Class C Parks & Wildlife misdemeanor, up to $500 (Parks & Wildlife Code § 13.112)
National park units (Padre Island NS and others)
No, and you can't carry an assembled detector either
36 CFR 2.1(a)(7)
Federal petty offense: up to $5,000 and/or 6 months
Army Corps of Engineers lakes (e.g. Lake Texoma, Canyon Lake)
Yes, on designated beaches and previously disturbed areas
36 CFR 327.14(d), unless the District Commander prohibits it to protect archaeological, historical or paleontological resources
Federal citation under 36 CFR 327
City parks
Varies by city, often by permit only
Example: Austin approves park detecting permits only to search for a specific lost item. General hobby searches are listed as an "invalid request" (City Code § 8-1-12)
City ordinance
Private land
With the owner's permission
Owner's consent
Criminal trespass without it
Checked September 2026 against 31 TAC § 59.134, the TPWD State Parks rules brochure, 36 CFR 2.1 and 327.14, Texas Natural Resources Code ch. 191, and the City of Austin metal-detecting permit form. Local beach ordinances change, so check the city or county code for the exact stretch you plan to detect.
The Texas Antiquities Code, in the parts that matter to detectorists
What the state owns (§ 191.091): sunken or abandoned pre-twentieth-century ships and wrecks, any part or contents of them, and "all treasure imbedded in the earth" on land belonging to the state, including its tidelands, submerged land and riverbeds. These are state archeological landmarks.
What you can't do (§ 191.093): landmarks are "the sole property of the State of Texas" and may not be removed, altered, damaged, salvaged or excavated without a permit or contract from the Texas Historical Commission.
Penalty (§ 191.171): a misdemeanor punishable by a fine of $50 to $1,000 and/or up to 30 days in jail. Each day a violation continues is a separate offense.
Citizen suits (§ 191.173): any Texas citizen can sue to stop a violation and to force the return of items taken.
Modern losses (a ring dropped last summer, a phone, coins from recent decades) aren't "pre-twentieth-century" material. If you dig something that looks like wreck material or a colonial-era coin on the beach, leave the area undisturbed and contact the Texas Historical Commission. Don't keep digging.
Where the state park starts, the detecting stops
The most common way Texas detectorists end up with a citation is walking off a city beach into a state park without noticing. Mustang Island State Park begins south of the Port Aransas city beach, and Galveston Island State Park occupies the west end of the island beyond the city's beaches. Inside any TPWD park, 31 TAC § 59.134(i) makes using a metal detector an offense unless you have a permit. The same rule also prohibits disturbing rocks, earth, soil or minerals and removing any artifact without director authorization. If you need to search for something you lost in a state park, ask the park superintendent before you turn on a detector.
Texas sites documented so far
Site
Managed by
Verdict
What's different about it
Galveston Public Beaches
City of Galveston / Galveston Park Board
Allowed
No ordinance bans detecting; Stewart and East Beach charge entry
Galveston Island State Park
TPWD
Prohibited
Same island and same Gulf sand, under state-park rules
Port Aransas Beach
City of Port Aransas
Allowed
The $12 beach parking permit is only for driving on the sand; Mustang Island SP starts to the south
South Padre Island
City of South Padre Island / Cameron County
Allowed
Isla Blanca and Andy Bowie county parks plus the city beach; no vehicles on the beach in city limits
Padre Island National Seashore
National Park Service
Prohibited
Even possessing an assembled detector is banned; 1554 Spanish plate-fleet wreck sites
Verdicts as published on each site page. Each page lists its own sources and verification date.
Before detecting anywhere in Texas
Identify who manages the exact stretch: city, county, TPWD state park, National Park Service or the Army Corps
On a coastal trip, find the state-park and national-seashore boundaries before you park
On an Army Corps lake, stick to designated beaches or previously disturbed ground and look for any District Commander closure
In a city park, check the city's rules; Austin, for one, only permits searches for a specific lost item
If you find anything that looks like wreck material or a pre-1900 coin, stop, note the location and contact the Texas Historical Commission
Fill every hole; beach nesting areas and dunes stay off-limits
Metal detecting is prohibited under Texas Administrative Code § 59.134, which prohibits collecting, disturbing, or altering any natural feature, cultural resource, or historical structure within a TPWD state park without prior written departmental authorization
Metal detecting is allowed on Galveston city and county-managed public beaches without a permit — no published city ordinance or county regulation prohibits recreational metal detecting on the beach strand
Metal detecting — and simply possessing an assembled detector — is banned across the entire 70-mile seashore under 36 CFR 2.1(a)(7); no permit path exists for recreational use
No City of Port Aransas ordinance was found prohibiting recreational metal detecting on the open city beach, which runs roughly from near Horace Caldwell Pier to Marker 62 at the city limit
No permit is required to metal detect on South Padre Island's public Gulf beaches, including Isla Blanca Park, Andy Bowie Park, and the city beach strip between them
