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Tree-lined north San Antonio street of limestone and brick homes at dusk

Off Austin Highway · ZIP 78209

Terrell Heights Security for Modest 1940s Homes on a Changing Corridor

Terrell Heights grew up in the 1940s near Fort Sam Houston. Its residents praise the short commute and the quiet streets, and the city has big plans for Austin Highway. Here is how to keep a small house well protected while the neighborhood around it changes.

  • Bexar County
  • ZIP 78209
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Free security assessment in Terrell Heights

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What are we protecting in Terrell Heights?
TX DPS Licensed #B16898 No-pressure, no-cost visit
Licensed in TexasTX DPS PSB License #B16898
Locally ownedSan Antonio-based since 2010
Monitored 24/7/365UL-listed central station
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Terrell Heights at a glance

The numbers behind the neighborhood

Every figure is sourced. Bracketed numbers link to the publisher at the bottom of the page.

Population, ZIP 78209 (2020 Census)
42,456[1]
Decennial count for the whole ZIP, which also covers Alamo Heights and other areas
Households, ZIP 78209 (2020 Census)
19,195[1]
About 2.14 people per household
Median household income, ZIP 78209
$86,514[1]
2020–2024 ACS 5-year estimate as published by zip-codes.com, a data aggregator
Median home value, ZIP 78209
$497,500[2]
ACS 2023 5-year estimate as published by US-Databases.com, a data aggregator
Owner-occupied homes, ZIP 78209
48.7%[2]
Share of occupied units; ACS 2023 5-year estimate via US-Databases.com

A 1940s Neighborhood Built in Fort Sam’s Shadow

Most of the homes in Terrell Heights went up in the 1940s, along with the large Sunset Ridge Apartments, which were meant for military families from nearby Fort Sam Houston. The houses are modest by the standards of the area. A resident who wrote about the neighborhood for the San Antonio Report described more working-class diversity here than in the neighboring Tri-Cities communities, and a politics that leans further left than the surrounding high-income areas.

The same writer listed the appeal plainly. Good schools that cost less to buy into than their neighbors. Traffic that barely exists. A quick trip to the airport and about fifteen minutes to downtown. Some home listings here show Alamo Heights ISD as the school district, which helps explain the demand for a 1940s three-bedroom.

Small Houses Have Fewer Doors. Make Each One Count.

A compact 1940s house is, in one respect, a security designer’s dream. There are only so many ways in: a front door, a back or kitchen door, maybe a door to a detached garage, and a handful of windows. Cover those well and you have covered the house. Nobody needs a dozen cameras on a lot this size.

Start with the doors people actually use. Smart locks relock on a timer and let you send a code to the dog walker that works only on weekday afternoons. Door contacts and a motion sensor in the main hallway catch anything the locks don’t. Original wood doors and older frames can be the weak part, and we check the strike plates and hinges while we’re there. A lock is only as stubborn as the wood it is screwed into.

Windows deserve a look too. Original 1940s sashes often have simple latches that a flat bar can defeat, and a bedroom window facing a side yard gets no attention from the street. A contact sensor on each ground-floor window costs you nothing in looks, and a glass-break detector in the living room covers the panes themselves. Add a camera that sees the back of the house and the whole place is accounted for.

A lock is only as stubborn as the wood it is screwed into.

Crime report · January–March 2025

SAPD’s own first-quarter 2025 report showed property crime down nearly a quarter from a year earlier.

Reporting agency: San Antonio Police Department

Crimes against property, City of San Antonio, Q1 2025
21,025[3]
Down 24.5% from 27,838 in Q1 2024, per SAPD’s quarterly release
All reported offenses, City of San Antonio, Q1 2025
31,493[3]
Down 19.3% from 39,045 in Q1 2024
Change in crimes against persons, City of San Antonio, Q1 2025
−12.8%[3]
SAPD attributed the decline mainly to fewer homicides and sex offenses

There is no official crime count for Terrell Heights alone. SAPD reports for the city as a whole, and its quarterly releases are the most direct numbers available. In the first three months of 2025, the department counted 21,025 crimes against property, down 24.5 percent from the same quarter of 2024. All offenses together fell 19.3 percent.

One quarter is a small window, and early-year numbers can be revised as cases are reclassified. Still, the direction matches what residents describe. A neighbor who wrote about Terrell Heights for the San Antonio Report called the local crime rate low. Low is not zero, and a falling citywide trend does nothing for the one house that gets picked. The sensible response is modest and steady: lock what you can, record what you can’t, and have someone watching the panel when you are away.

If something does happen, the first hour matters most. Call SAPD, keep everyone out of the rooms involved, leave things as you found them, and pull the footage before your camera overwrites it. Detectives can do far more with a clear clip and an exact time than with a description written down the next morning.

Austin Highway, Sunset Ridge, and a Corridor in Transition

Terrell Heights takes its errands along Austin Highway and North New Braunfels Avenue, where the Sunset Ridge Shopping Center sits. The city has approved plans to redevelop the Austin Highway corridor. Residents welcome the improvements, though the resident essayist admitted that nobody is excited about one of the neighborhood’s main arteries being under construction for a long time.

Long construction projects bring a predictable side effect: more strangers on the street, more trucks, more noise to cover the sound of a gate. Most of those people are doing exactly what they appear to be doing. A video doorbell and one camera on the driveway let you tell the difference from your phone, and the footage is there if a ladder or a package walks off during the commotion.

Renters, Owners, and Everyone in Between

In ZIP 78209 as a whole, fewer than half of occupied homes are lived in by their owners, according to Census estimates published by US-Databases.com. That mix shows up in Terrell Heights, with its apartment complex, its rentals, and its longtime homeowners on the same streets. Security works differently for each.

Owners can wire in a permanent system and add cameras outside. Renters usually need equipment that comes off the wall when the lease ends, which wireless sensors handle neatly. Landlords have duties of their own under Texas law, covered in our explainer on the Texas rental security device law. For a small apartment building, our multi-family security work covers shared entries and parking.

What Happens When You Call Us

San Antonio Protection Services is a locally owned company, working since 2010 and licensed by the Texas DPS Private Security Bureau under license B16898. A technician comes to the house, walks every door and window with you, and checks what a stranger can see from Austin Highway or the alley.

Afterward you get a written plan with options, sized for the house you have. If you go ahead, we install it, show the whole household how it works, and connect it to monitoring from a UL-listed central station. Nobody presses you to sign that afternoon. The first step is a free security assessment.

Tree-lined north San Antonio street of limestone and brick homes at dusk

Landmarks we know well

  • Austin Highway
  • Sunset Ridge Shopping Center
  • North New Braunfels Avenue
  • Fort Sam Houston

Straight answers

Security in Terrell Heights: common questions

Is Terrell Heights part of Terrell Hills?
Do I need a city alarm permit in Terrell Heights?
Can renters in Terrell Heights get a monitored alarm?
Will a security system work with my old wood doors?
How long does an installation take in a small house?

Sources & methodology

Figures are the most recent we could verify from the publishers below, checked October 2026. Where an official agency publishes nothing more recent, we say so rather than estimate.

  1. 1.ZIP Code 78209 Info, Map, Demographics for San Antonio, TX — zip-codes.com (data aggregator, citing U.S. Census Bureau), 2020 Census; 2020–2024 ACS 5-year
  2. 2.ZIP Code 78209 — San Antonio, TX — US-Databases.com (data aggregator, citing Census ACS), ACS 2023 5-year
  3. 3.SAPD Releases 1st Quarter (January – March) 2025 Crime Statistics — City of San Antonio, Q1 2025
  4. 4.Where I Live: Terrell Heights — San Antonio Report

Your next step

Get a Terrell Heights Security Plan Sized to Your House

We will check every door, every window, and the view from the street, then leave you a written plan. There is no charge and no obligation. Call (210) 468-1788 or book online.

  • A licensed specialist walks every door, window and blind spot with you
  • A written plan sized to the property — nothing padded
  • Clear answers on monitoring, equipment ownership and terms
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What are we protecting in Terrell Heights?
TX DPS Licensed #B16898 No-pressure, no-cost visit
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