States · Texas · Canyon Lake

Canyon Lake

San Antonio's lake. 8,308 acres of crystal-clear Guadalupe River reservoir in Comal County, 45 minutes from downtown San Antonio and 90 minutes from Austin. The Army Corps of Engineers has managed it since 1964 -- and under their management, no private docks or boathouses of any kind have ever existed here. Canyon Lake is one of the few Texas lakes where that restriction is absolute. What it lacks in private dock access it more than compensates in water clarity, Comal County's low tax rate, Hill Country setting, and a geological wonder below the dam that does not exist anywhere else in Texas.

Operator:U.S. Army Corps of Engineers -- Fort Worth District
Size
8,308 acres / 80 miles shoreline
Operator
U.S. Army Corps of Engineers (Fort Worth District)
County
Comal County (no incorporated city -- no city tax)
Max Depth
125 feet
Impounded
1964 (Guadalupe River)
Private Docks
PROHIBITED -- no private waterfront structures, period
Water Clarity
Clear to slightly stained (among Texas's clearest reservoirs)
San Antonio
45 miles / ~45 min off-peak
Data Verified
July 2026
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Categories: Trophy Fish · Canyon Gorge · Sunsets · Hill Country Views · Tubing

The Lake at a Glance

Canyon Lake sits on the Guadalupe River in Comal County, 16 miles northwest of New Braunfels and 45 miles from downtown San Antonio. At 8,308 acres with 80 miles of shoreline and a maximum depth of 125 feet, it is among the deepest and clearest reservoirs in Central Texas. The U.S. Army Corps of Engineers completed the dam in 1964 for three purposes: flood control on the Guadalupe River, water supply for Comal County, and recreation. The lake has delivered on all three, and the recreation dimension has made Canyon Lake one of the most active boating and water sports destinations in the Texas Hill Country.

The lake is entirely within unincorporated Comal County. There is no city of Canyon Lake. The communities around the lake -- Sattler, Startzville, Canyon City, and the subdivisions of Canyon Lake Hills, Canyon Lake Village, and Mystic Shores among them -- are unincorporated census-designated places. This matters enormously for property tax: no city levy applies to Canyon Lake properties, producing an effective combined rate of approximately 0.83% that is among the lowest of any significant Texas lake market.

The One Thing Every Buyer Must Know First

No private docks, boathouses, boat slips, or permanent waterfront improvements of any kind exist on Canyon Lake, and none can ever be built. This is not the same as Lewisville Lake, where existing grandfathered boathouses can be purchased with the property. Canyon Lake has no grandfathered private dock inventory at all -- the USACE prohibition here is categorical and has been in place since the lake opened. Every home on Canyon Lake accesses the water through public boat ramps (23 of them), public marinas on the north and south shores, or the Canyon Lake Yacht Club. If keeping your boat behind your house and walking out the back door onto your own dock is a non-negotiable requirement, Canyon Lake is not your lake. We cover the full dock situation in our dock permits guide and our dedicated can you build a dock page.

What Canyon Lake Offers Instead

What Canyon Lake delivers in place of private dock access is a combination that is genuinely difficult to replicate in North Texas: water clarity that allows underwater visibility of 10 to 15 feet on calm days, limestone bluffs and Hill Country terrain, Comal County's ~0.83% effective property tax rate, no city tax whatsoever, one of Texas's only cold-water trout fisheries below the dam, and a geological wonder -- the Canyon Lake Gorge -- that a 2002 flood carved through Cretaceous-era limestone and that is now a protected preserve open to guided tours. These are not consolation prizes. They are genuine competitive advantages over larger North Texas reservoirs that happen to be accompanied by no private dock access.

Everything We Cover on Canyon Lake

26 pages of independent research -- dock rules, tax math, STR complexity, geological wonders, and buyer guides.

Money & Costs

The Real Cost of Living on Canyon Lake

All-in annual budget -- the honest number with no city tax overlay.

Property Tax on Canyon Lake

Comal County's 0.83% effective rate -- one of the lowest on any Texas lake.

Lakefront Insurance on Canyon Lake

Wind, hail, flood zone reality on a Hill Country USACE reservoir.

Dock & Shoreline

Dock Rules on Canyon Lake: What USACE Prohibits

No private boathouses, no permanent shoreline structures -- ever.

Can You Build a Dock on Canyon Lake?

The answer is harder than Lewisville's. There are no existing permitted private docks to buy either.

Water Levels & USACE Management

909 ft conservation pool, Guadalupe River control, and drought history.

Local Guidance

This is exactly the stuff a Canyon Lake specialist helps you navigate. Want an introduction?

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Buying & Ownership

Buying on Canyon Lake: What Can Go Wrong

The due diligence checklist for a no-dock, no-city, USACE lake.

What Nobody Tells You About Canyon Lake

Eight buyer surprises from people who closed and then discovered them.

STR Rules on Canyon Lake: WORD, ETJ & Comal County

Three overlapping regulators, a 3% lodging fee, and a septic trap.

Vacation Rental & Investment Guide

The STR market is real and active. The regulatory complexity is also real.

Lifestyle & Living

Retiring on Canyon Lake

No city tax, Comal County's low rate, Comal ISD, and Hill Country healthcare.

Seasonal Recreation on Canyon Lake

The lake year-round -- what changes by season and who the lake attracts.

Boating on Canyon Lake

Counterclockwise pattern, 23 ramps, 2 USACE marinas, and what to expect.

The Canyon Lake Boating Culture

How this lake feels on the water versus North Texas reservoirs.

Fishing on Canyon Lake

TPWD-stocked stripers, excellent largemouth, and a clear-water edge.

Community & Lifestyle on Canyon Lake

Unincorporated, Hill Country character, Sattler to Startzville to Spring Branch.

Schools, Healthcare & Commute

Comal ISD (A-rated), San Antonio medical access, and the Hill Country drive reality.

Year-Round Living on Canyon Lake

Summer crowds, winter quiet, and what full-time life here actually looks like.

Unique to Canyon Lake

Canyon Lake Gorge: The Geological Wonder Below the Dam

A 2002 flood carved a mile-long gorge through Cretaceous rock -- a geological preserve accessible from the lake community.

The Guadalupe River Tailwater: Cold-Water Trout in Texas

Texas's only year-round trout fishery, fed by cold releases from Canyon Lake dam -- a 15-mile stretch unlike anything else in the state.

Comparisons & Buyer Origins

Canyon Lake vs. Medina Lake

Clear water vs. drought risk. No dock vs. dock available. The Central Texas comparison.

Canyon Lake vs. Lake Travis

Two USACE/LCRA Hill Country lakes -- how they differ on price, dock rules, and character.

Moving from San Antonio to Canyon Lake

45 miles, 45 minutes off-peak, no city taxes. The honest commute and savings math.

Moving from Austin to Canyon Lake

90 miles of Hill Country on I-35. The Austin buyer's guide to Canyon Lake.

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