78148 ZIP Code, Universal City, TX

78148 is a ZIP code in Universal City, Texas in Bexar County. It covers 9.6 square miles of land, centered about 14 miles northeast of downtown San Antonio. The closest ZIP codes are 78150, 78154 and 78233. 22,187 people live here in 8,767 households. At about 2,301 people per square mile it has suburban density, and owners and renters are mixed (53% own). Median household income is $74,783, close to the Texas median of $78,476.

Quick facts

Key figures

MeasureValue
Residents22,187
Households8,767
Median household income$74,783
Income per person$39,417
Median age35.3
Homeowners52.6%
Median home value$267,000
Median rent$1,356
Bachelor's degree or higher33.3%
Average commute (minutes)25
Households with kids under 1830.1%
Moved in the past year19.1%
Below the poverty line8.3%
Broadband internet96.3%
Speak a non-English language at home22.1%

Household income

% of householdsValue
<$10K3.1%
$10–15K1.6%
$15–25K3.3%
$25–35K6.6%
$35–50K15.1%
$50–75K20.5%
$75–100K16.0%
$100–150K14.3%
$150–200K9.3%
$200K+10.0%

Age

% of all residentsValue
<1013.0%
10–1912.5%
20–247.2%
25–3416.5%
35–4413.4%
45–5411.9%
55–6412.2%
65–748.2%
75+5.1%

Tenure

% of housing unitsValue
Owned, with mortgage30.6%
Owned outright20.7%
Rented45.7%
Vacant3.0%

Type of building

% of housing unitsValue
Detached house61.3%
Townhome2.0%
2–4 units10.3%
5–19 units17.2%
20+ units7.9%
Mobile / other1.3%

Businesses in 78148

391 business establishments with 5,565 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

78148 has 10 USPS carrier routes with 9,068 residential and 523 business mailboxes. Open the EDDM route map.

Carrier routes in 78148

78148 has 10 USPS carrier routes (10 city (C)) with 9,068 residential and 523 business mailboxes. Routes range from 678 homes (C010) to 1,222 homes (C015); the median route has 874 homes. The Census counted 8,767 households in 78148 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4990
500–7493
750–9994
1,000–1,4993
1,500+0

Best routes in 78148 for…

Highest income

For bigger-ticket offers: remodeling, pools, financial planning, private schools.

  1. Route C002 — Est. median household income $112,374, 718 homes
  2. Route C003 — Est. median household income $105,693, 1,073 homes
  3. Route C012 — Est. median household income $89,657, 909 homes
  4. Route C008 — Est. median household income $89,329, 770 homes
  5. Route C006 — Est. median household income $84,712, 1,195 homes

Select these 5 routes on the route map

Often mailed by: Home services EDDM, Real estate EDDM postcards, Landscaping and lawn care mailers

Most families with kids

For tutoring, youth sports, pediatric dental, child care and family dining.

  1. Route C002 — Est. families with children under 18 58.7%, 718 homes
  2. Route C003 — Est. families with children under 18 46.7%, 1,073 homes
  3. Route C006 — Est. families with children under 18 40.9%, 1,195 homes
  4. Route C015 — Est. families with children under 18 32.6%, 1,222 homes
  5. Route C001 — Est. families with children under 18 29.7%, 947 homes

Select these 5 routes on the route map

Often mailed by: Dental practice EDDM, Healthcare and clinic mailers

Most homeowners

Owners decide on roofs, HVAC, lawns, solar and insurance; renters usually can't.

  1. Route C003 — Est. owner-occupied homes 71.3%, 1,073 homes
  2. Route C008 — Est. owner-occupied homes 65.7%, 770 homes
  3. Route C015 — Est. owner-occupied homes 62.9%, 1,222 homes
  4. Route C006 — Est. owner-occupied homes 62.3%, 1,195 homes
  5. Route C012 — Est. owner-occupied homes 59.0%, 909 homes

Select these 5 routes on the route map

Often mailed by: Roofing direct mail, HVAC postcards

Most new movers

New residents are still choosing a dentist, a gym and a lawn service.

  1. Route C002 — Est. residents who moved in the past year 53.7%, 718 homes
  2. Route C015 — Est. residents who moved in the past year 25.6%, 1,222 homes
  3. Route C011 — Est. residents who moved in the past year 22.6%, 839 homes
  4. Route C006 — Est. residents who moved in the past year 20.9%, 1,195 homes
  5. Route C010 — Est. residents who moved in the past year 20.2%, 678 homes

Select these 5 routes on the route map

Often mailed by: Restaurant EDDM menus and offers, Gym and fitness mailers

Newest homes

Newer subdivisions: landscaping, window treatments, fencing, security, home warranties.

  1. Route C003 — Est. homes built 2010 or later 35.5%, 1,073 homes
  2. Route C008 — Est. homes built 2010 or later 6.7%, 770 homes
  3. Route C015 — Est. homes built 2010 or later 6.3%, 1,222 homes
  4. Route C011 — Est. homes built 2010 or later 6.1%, 839 homes
  5. Route C012 — Est. homes built 2010 or later 5.5%, 909 homes

Select these 5 routes on the route map

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

  1. Route C001 — USPS business mailboxes 185, 947 homes
  2. Route C011 — USPS business mailboxes 164, 839 homes
  3. Route C006 — USPS business mailboxes 71, 1,195 homes
  4. Route C010 — USPS business mailboxes 57, 678 homes
  5. Route C003 — USPS business mailboxes 18, 1,073 homes

Select these 5 routes on the route map

Every carrier route in 78148

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City947185$51,91441.8%29.7%16.6%
C002City7183$112,3740.6%58.7%53.7%
C003City1,07318$105,69371.3%46.7%12.6%
C005City71715$67,24557.8%29.1%10.6%
C006City1,19571$84,71262.3%40.9%20.9%
C008City7702$89,32965.7%14.7%15.5%
C010City67857$64,77839.3%28.1%20.2%
C011City839164$72,83550.9%27.1%22.6%
C012City9095$89,65759.0%25.9%5.3%
C015City1,2223$76,97962.9%32.6%25.6%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78148 on the EDDM route map.

How route demographics are estimated

Mailbox counts come from USPS; demographics are estimates

The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).

How a route gets its figures: the block-group length-share method

We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.

Margins of error

Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.

Different years

USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.

Why some routes show identical figures

Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.

Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.

Nearby ZIP codes

Areas that include 78148

Where it ranks

Mail every home in 78148

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 78148, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 78148 in?
78148 is a Universal City, TX mailing address. By land area, 56% lies inside Universal City, 39% lies inside Randolph AFB, 3% lies inside Live Oak and 1% lies inside Schertz.
What county is 78148 in?
78148 is in Bexar County.
What is the population of 78148?
About 22,187 people (±739), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 21,569.
What is the median household income in 78148?
$74,783 (±$5,063), compared with $78,476 for Texas as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 78148?
10 USPS carrier routes with 9,068 residential and 523 business mailboxes (9,591 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 78148?
The closest, measured center to center: 78150 (1 mi, Randolph AFB), 78154 (2.1 mi, Schertz), 78233 (4.1 mi, San Antonio), 78239 (4.4 mi, Windcrest), 78109 (4.5 mi, Converse) and 78108 (5.1 mi, Cibolo).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.