78112 ZIP Code, Elmendorf, TX
78112 is a ZIP code in Elmendorf, Texas in Bexar County. It covers 51 square miles of land, centered about 17 miles south of downtown San Antonio. The closest ZIP codes are 78264, 78223 and 78221. 9,769 people live here in 3,617 households. With about 190 people per square mile it is lightly settled, and most homes are owner-occupied (91%). Median household income is $54,988, below the Texas median of $78,476.
Quick facts
- Mailing city: Elmendorf, TX
- County: Bexar County
- Metro area: San Antonio
- Land area: 51 sq mi
- Population: 9,769
- Median household income: $54,988
- Carrier routes: 5 (4,748 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 9,769 |
| Households | 3,617 |
| Median household income | $54,988 |
| Income per person | $26,867 |
| Median age | 43.9 |
| Homeowners | 91.1% |
| Median home value | $131,400 |
| Median rent | $1,319 |
| Bachelor's degree or higher | 8.5% |
| Average commute (minutes) | 31.7 |
| Households with kids under 18 | 30.3% |
| Moved in the past year | 5.1% |
| Below the poverty line | 17.0% |
| Broadband internet | 85.7% |
| Speak a non-English language at home | 43.2% |
Household income
| % of households | Value |
|---|---|
| <$10K | 5.6% |
| $10–15K | 3.3% |
| $15–25K | 2.7% |
| $25–35K | 18.1% |
| $35–50K | 13.6% |
| $50–75K | 24.9% |
| $75–100K | 9.9% |
| $100–150K | 13.0% |
| $150–200K | 5.5% |
| $200K+ | 3.4% |
Age
| % of all residents | Value |
|---|---|
| <10 | 13.7% |
| 10–19 | 9.1% |
| 20–24 | 5.0% |
| 25–34 | 11.0% |
| 35–44 | 12.9% |
| 45–54 | 12.2% |
| 55–64 | 18.4% |
| 65–74 | 12.7% |
| 75+ | 4.9% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 28.2% |
| Owned outright | 58.5% |
| Rented | 8.5% |
| Vacant | 4.8% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 36.1% |
| Townhome | 0.0% |
| 2–4 units | 1.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 62.8% |
Businesses in 78112
88 business establishments with 1,122 employees (ZIP Codes Business Patterns 2023).
- Construction: 21
- Retail Trade: 16
- Manufacturing: 8
- Transportation and Warehousing: 8
- Wholesale Trade: 7
- Accommodation and Food Services: 7
- Real Estate and Rental and Leasing: 5
- Professional, Scientific, and Technical Services: 4
EDDM carrier routes
78112 has 5 USPS carrier routes with 4,748 residential and 78 business mailboxes. Open the EDDM route map.
Carrier routes in 78112
78112 has 5 USPS carrier routes (5 rural (R)) with 4,748 residential and 78 business mailboxes. Routes range from 726 homes (R002) to 1,661 homes (R005); the median route has 777 homes. The Census counted 3,617 households in 78112 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 0 |
| 500–749 | 2 |
| 750–999 | 2 |
| 1,000–1,499 | 0 |
| 1,500+ | 1 |
Best routes in 78112 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R002 — Est. median household income $69,799, 726 homes
- Route R004 — Est. median household income $61,270, 743 homes
- Route R005 — Est. median household income $58,013, 1,661 homes
- Route R001 — Est. median household income $53,959, 777 homes
- Route R003 — Est. median household income $53,185, 841 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.
- Route R002 — Est. families with children under 18 40.3%, 726 homes
- Route R005 — Est. families with children under 18 35.0%, 1,661 homes
- Route R004 — Est. families with children under 18 31.6%, 743 homes
- Route R001 — Est. families with children under 18 26.6%, 777 homes
- Route R003 — Est. families with children under 18 24.7%, 841 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.
- Route R001 — Est. owner-occupied homes 93.0%, 777 homes
- Route R003 — Est. owner-occupied homes 91.8%, 841 homes
- Route R005 — Est. owner-occupied homes 85.5%, 1,661 homes
- Route R004 — Est. owner-occupied homes 82.8%, 743 homes
- Route R002 — Est. owner-occupied homes 77.0%, 726 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.
- Route R002 — Est. residents who moved in the past year 17.2%, 726 homes
- Route R004 — Est. residents who moved in the past year 12.5%, 743 homes
- Route R005 — Est. residents who moved in the past year 9.8%, 1,661 homes
- Route R003 — Est. residents who moved in the past year 4.8%, 841 homes
- Route R001 — Est. residents who moved in the past year 4.8%, 777 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.
- Route R002 — Est. homes built 2010 or later 45.9%, 726 homes
- Route R004 — Est. homes built 2010 or later 36.8%, 743 homes
- Route R005 — Est. homes built 2010 or later 29.6%, 1,661 homes
- Route R001 — Est. homes built 2010 or later 21.7%, 777 homes
- Route R003 — Est. homes built 2010 or later 21.6%, 841 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R004 — USPS business mailboxes 40, 743 homes
- Route R002 — USPS business mailboxes 23, 726 homes
- Route R001 — USPS business mailboxes 12, 777 homes
- Route R003 — USPS business mailboxes 2, 841 homes
- Route R005 — USPS business mailboxes 1, 1,661 homes
Select these 5 routes on the route map
Every carrier route in 78112
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R001 | Rural | 777 | 12 | $53,959 | 93.0% | 26.6% | 4.8% |
| R002 | Rural | 726 | 23 | $69,799 | 77.0% | 40.3% | 17.2% |
| R003 | Rural | 841 | 2 | $53,185 | 91.8% | 24.7% | 4.8% |
| R004 | Rural | 743 | 40 | $61,270 | 82.8% | 31.6% | 12.5% |
| R005 | Rural | 1,661 | 1 | $58,013 | 85.5% | 35.0% | 9.8% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78112 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
- 78264 — San Antonio city, TX (7.1 mi)
- 78223 — San Antonio city, TX (8.5 mi)
- 78221 — San Antonio city, TX (9.4 mi)
- 78050 — Leming CDP, TX (9.5 mi)
- 78263 — China Grove town, TX (10.9 mi)
- 78235 — San Antonio city, TX (11.2 mi)
- 78222 — San Antonio city, TX (11.7 mi)
- 78214 — San Antonio city, TX (12.3 mi)
Areas that include 78112
- San Antonio, TX ZIP codes — 64 ZIP codes
- Sandy Oaks, TX ZIP codes — 1 ZIP code
- Elmendorf, TX ZIP codes — 1 ZIP code
- Bexar County ZIP codes — 76 ZIP codes
- San Antonio ZIP code map — 121 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 9 of 104: highest share of owner-occupied homes in the San Antonio area
- No. 15 of 104: highest median age in the San Antonio area
- No. 4 of 74: highest share of owner-occupied homes in Bexar County
- No. 5 of 74: highest median age in Bexar County
- No. 22 of 74: fastest population growth in Bexar County
Mail every home in 78112
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.
San Antonio EDDM mailing
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 78112, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78112 in?
- 78112 is a Elmendorf, TX mailing address. By land area, 16% lies inside San Antonio, 11% lies inside Elmendorf and 5% lies inside Sandy Oaks; the rest is outside any Census-defined city or community.
- What county is 78112 in?
- 78112 is in Bexar County.
- What is the population of 78112?
- About 9,769 people (±664), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,591.
- What is the median household income in 78112?
- $54,988 (±$7,100), 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 78112?
- 5 USPS carrier routes with 4,748 residential and 78 business mailboxes (4,826 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78112?
- The closest, measured center to center: 78264 (7.1 mi, San Antonio), 78223 (8.5 mi, San Antonio), 78221 (9.4 mi, San Antonio), 78050 (9.5 mi, Leming), 78263 (10.9 mi, China Grove) and 78235 (11.2 mi, San Antonio).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.