78123 ZIP Code, Mc Queeney, TX

78123 is a ZIP code in Mc Queeney, Texas in Guadalupe County. It covers 3.7 square miles of land, centered about 30 miles northeast of downtown San Antonio. The closest ZIP codes are 78130, 78124 and 78155. 2,127 people live here in 878 households. With about 569 people per square mile it is lightly settled, and most homes are owner-occupied (89%). Median household income is $97,553, above the Texas median of $78,476; the median age is 48.9, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents2,127
Households878
Median household income$97,553
Income per person$46,866
Median age48.9
Homeowners89.3%
Median home value$238,500
Median rentnot published
Bachelor's degree or higher23.4%
Average commute (minutes)29.5
Households with kids under 1824.5%
Moved in the past year8.7%
Below the poverty line10.3%
Broadband internet97.8%
Speak a non-English language at home16.3%

Household income

% of householdsValue
<$10K4.3%
$10–15K1.4%
$15–25K3.8%
$25–35K11.2%
$35–50K7.9%
$50–75K13.9%
$75–100K12.9%
$100–150K11.2%
$150–200K20.3%
$200K+13.3%

Age

% of all residentsValue
<107.3%
10–1914.2%
20–240.1%
25–349.5%
35–4413.6%
45–547.4%
55–6421.3%
65–7415.1%
75+11.4%

Tenure

% of housing unitsValue
Owned, with mortgage17.6%
Owned outright56.3%
Rented8.8%
Vacant17.4%

Type of building

% of housing unitsValue
Detached house77.6%
Townhome0.9%
2–4 units0.0%
5–19 units0.0%
20+ units0.0%
Mobile / other21.4%

Businesses in 78123

62 business establishments with 795 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

78123 has 2 USPS carrier routes with 1,083 residential and 55 business mailboxes. Open the EDDM route map.

Carrier routes in 78123

78123 has 2 USPS carrier routes (2 rural (R)) with 1,083 residential and 55 business mailboxes. Routes range from 338 homes (R302) to 745 homes (R301); the median route has 542 homes. The Census counted 878 households in 78123 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4991
500–7491
750–9990
1,000–1,4990
1,500+0

Best routes in 78123 for…

Highest income

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

  1. Route R301 — Est. median household income $92,034, 745 homes
  2. Route R302 — Est. median household income $87,227, 338 homes

Select these 2 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 R302 — Est. families with children under 18 36.2%, 338 homes
  2. Route R301 — Est. families with children under 18 19.5%, 745 homes

Select these 2 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 R302 — Est. owner-occupied homes 90.8%, 338 homes
  2. Route R301 — Est. owner-occupied homes 89.9%, 745 homes

Select these 2 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 R301 — Est. residents who moved in the past year 9.6%, 745 homes
  2. Route R302 — Est. residents who moved in the past year 9.6%, 338 homes

Select these 2 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 R302 — Est. homes built 2010 or later 21.3%, 338 homes
  2. Route R301 — Est. homes built 2010 or later 12.8%, 745 homes

Select these 2 routes on the route map

Most businesses

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

  1. Route R301 — USPS business mailboxes 48, 745 homes
  2. Route R302 — USPS business mailboxes 7, 338 homes

Select these 2 routes on the route map

Every carrier route in 78123

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R301Rural74548$92,03489.9%19.5%9.6%
R302Rural3387$87,22790.8%36.2%9.6%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78123 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 78123

Where it ranks

Mail every home in 78123

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) 78123, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 78123 in?
78123 is a Mc Queeney, TX mailing address. By land area, 87% lies inside McQueeney and 4% lies inside Seguin; the rest is outside any Census-defined city or community.
What county is 78123 in?
78123 is in Guadalupe County.
What is the population of 78123?
About 2,127 people (±705), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 2,291.
What is the median household income in 78123?
$97,553 (±$43,437), 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 78123?
2 USPS carrier routes with 1,083 residential and 55 business mailboxes (1,139 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 78123?
The closest, measured center to center: 78130 (6.4 mi, New Braunfels), 78124 (7.3 mi, Zuehl), 78155 (7.7 mi, Seguin), 78108 (11 mi, Cibolo), 78132 (14 mi, Canyon Lake) and 78154 (14 mi, Schertz).

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