78724 ZIP Code, Austin, TX
78724 is a ZIP code in Austin, Texas in Travis County. It covers 25 square miles of land, centered about 7.7 miles east of downtown Austin. The closest ZIP codes are 78723, 78721 and 78742. 31,103 people live here in 10,379 households. At about 1,247 people per square mile it has suburban density, and owners and renters are mixed (61% own). Median household income is $77,926, close to the Texas median of $78,476; 40% of households have children under 18.
Quick facts
- Mailing city: Austin, TX
- County: Travis County
- Metro area: Austin
- Land area: 25 sq mi
- Population: 31,103
- Median household income: $77,926
- Carrier routes: 11 (14,823 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 31,103 |
| Households | 10,379 |
| Median household income | $77,926 |
| Income per person | $34,533 |
| Median age | 32.2 |
| Homeowners | 60.6% |
| Median home value | $344,000 |
| Median rent | $1,649 |
| Bachelor's degree or higher | 31.6% |
| Average commute (minutes) | 27.6 |
| Households with kids under 18 | 40.3% |
| Moved in the past year | 10.5% |
| Below the poverty line | 13.9% |
| Broadband internet | 94.0% |
| Speak a non-English language at home | 46.5% |
Household income
| % of households | Value |
|---|---|
| <$10K | 4.8% |
| $10–15K | 2.1% |
| $15–25K | 6.2% |
| $25–35K | 6.7% |
| $35–50K | 9.2% |
| $50–75K | 19.0% |
| $75–100K | 17.1% |
| $100–150K | 19.0% |
| $150–200K | 6.1% |
| $200K+ | 9.8% |
Age
| % of all residents | Value |
|---|---|
| <10 | 16.8% |
| 10–19 | 15.0% |
| 20–24 | 4.8% |
| 25–34 | 18.3% |
| 35–44 | 18.5% |
| 45–54 | 10.6% |
| 55–64 | 10.2% |
| 65–74 | 3.7% |
| 75+ | 2.2% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 37.3% |
| Owned outright | 20.9% |
| Rented | 37.8% |
| Vacant | 4.1% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 61.9% |
| Townhome | 1.0% |
| 2–4 units | 5.7% |
| 5–19 units | 7.7% |
| 20+ units | 7.5% |
| Mobile / other | 16.3% |
Businesses in 78724
325 business establishments with 10,177 employees (ZIP Codes Business Patterns 2023).
- Construction: 71
- Retail Trade: 37
- Professional, Scientific, and Technical Services: 30
- Transportation and Warehousing: 27
- Other Services (except Public Administration): 26
- Real Estate and Rental and Leasing: 25
- Wholesale Trade: 23
- Administrative and Support and Waste Management and Remediation Services: 23
EDDM carrier routes
78724 has 11 USPS carrier routes with 14,823 residential and 304 business mailboxes. Open the EDDM route map.
Carrier routes in 78724
78724 has 11 USPS carrier routes (5 city (C), 6 rural (R)) with 14,823 residential and 304 business mailboxes. Routes range from 203 homes (R236) to 3,194 homes (C050); the median route has 1,024 homes. The Census counted 10,379 households in 78724 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 0 |
| 500–749 | 0 |
| 750–999 | 4 |
| 1,000–1,499 | 2 |
| 1,500+ | 4 |
Best routes in 78724 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R173 — Est. median household income $106,508, 806 homes
- Route C052 — Est. median household income $91,945, 1,680 homes
- Route R266 — Est. median household income $89,300, 943 homes
- Route C054 — Est. median household income $87,916, 1,154 homes
- Route R157 — Est. median household income $86,012, 957 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 R236 — Est. families with children under 18 52.9%, 203 homes
- Route R022 — Est. families with children under 18 48.7%, 1,024 homes
- Route C056 — Est. families with children under 18 42.5%, 1,712 homes
- Route C050 — Est. families with children under 18 40.7%, 3,194 homes
- Route R173 — Est. families with children under 18 38.5%, 806 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 R236 — Est. owner-occupied homes 81.6%, 203 homes
- Route C052 — Est. owner-occupied homes 78.8%, 1,680 homes
- Route R022 — Est. owner-occupied homes 75.4%, 1,024 homes
- Route R173 — Est. owner-occupied homes 68.0%, 806 homes
- Route R157 — Est. owner-occupied homes 64.2%, 957 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 C054 — Est. residents who moved in the past year 15.9%, 1,154 homes
- Route R173 — Est. residents who moved in the past year 15.8%, 806 homes
- Route C050 — Est. residents who moved in the past year 15.7%, 3,194 homes
- Route C056 — Est. residents who moved in the past year 12.9%, 1,712 homes
- Route R266 — Est. residents who moved in the past year 11.5%, 943 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 C050 — Est. homes built 2010 or later 53.3%, 3,194 homes
- Route C056 — Est. homes built 2010 or later 52.7%, 1,712 homes
- Route R253 — Est. homes built 2010 or later 52.5%, 991 homes
- Route R236 — Est. homes built 2010 or later 52.1%, 203 homes
- Route R266 — Est. homes built 2010 or later 51.2%, 943 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C055 — USPS business mailboxes 112, 2,159 homes
- Route C050 — USPS business mailboxes 67, 3,194 homes
- Route R173 — USPS business mailboxes 52, 806 homes
- Route R022 — USPS business mailboxes 32, 1,024 homes
- Route R253 — USPS business mailboxes 13, 991 homes
Select these 5 routes on the route map
Every carrier route in 78724
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C050 | City | 3,194 | 67 | $70,632 | 54.7% | 40.7% | 15.7% |
| C052 | City | 1,680 | 10 | $91,945 | 78.8% | 24.6% | 7.9% |
| C054 | City | 1,154 | 4 | $87,916 | 63.2% | 35.2% | 15.9% |
| C055 | City | 2,159 | 112 | $78,951 | 59.5% | 33.5% | 6.2% |
| C056 | City | 1,712 | 9 | $66,866 | 51.2% | 42.5% | 12.9% |
| R022 | Rural | 1,024 | 32 | $83,040 | 75.4% | 48.7% | 7.0% |
| R157 | Rural | 957 | 2 | $86,012 | 64.2% | 36.7% | 8.2% |
| R173 | Rural | 806 | 52 | $106,508 | 68.0% | 38.5% | 15.8% |
| R236 | Rural | 203 | 0 | $68,121 | 81.6% | 52.9% | 8.0% |
| R253 | Rural | 991 | 13 | $83,315 | 60.4% | 34.6% | 9.8% |
| R266 | Rural | 943 | 3 | $89,300 | 58.1% | 33.7% | 11.5% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78724 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
- 78723 — Austin city, TX (4.1 mi)
- 78721 — Austin city, TX (4.2 mi)
- 78742 — Austin city, TX (4.3 mi)
- 78725 — Hornsby Bend CDP, TX (4.4 mi)
- 78754 — Austin city, TX (4.6 mi)
- 78722 — Austin city, TX (5.8 mi)
- 78752 — Austin city, TX (5.8 mi)
- 78702 — Austin city, TX (6.1 mi)
Areas that include 78724
- Austin, TX ZIP codes — 46 ZIP codes
- Hornsby Bend, TX ZIP codes — 2 ZIP codes
- Travis County ZIP codes — 56 ZIP codes
- Austin ZIP code map — 89 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 18 of 83: highest share of households with children in the Austin area
- No. 9 of 83: lowest median age in the Austin area
- No. 10 of 54: highest share of households with children in Travis County
- No. 6 of 54: lowest median age in Travis County
- No. 12 of 53: fastest population growth in Travis County
- No. 8 of 44: highest share of households with children in Austin, TX
- No. 5 of 44: lowest median age in Austin, TX
- No. 7 of 44: fastest population growth in Austin, TX
Mail every home in 78724
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.
Austin EDDM mailing
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 78724, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78724 in?
- 78724 is a Austin, TX mailing address. By land area, 57% lies inside Austin and 12% lies inside Hornsby Bend; the rest is outside any Census-defined city or community.
- What county is 78724 in?
- 78724 is in Travis County.
- What is the population of 78724?
- About 31,103 people (±2,129), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,680.
- What is the median household income in 78724?
- $77,926 (±$7,400), 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 78724?
- 11 USPS carrier routes with 14,823 residential and 304 business mailboxes (15,128 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78724?
- The closest, measured center to center: 78723 (4.1 mi, Austin), 78721 (4.2 mi, Austin), 78742 (4.3 mi, Austin), 78725 (4.4 mi, Hornsby Bend), 78754 (4.6 mi, Austin) and 78722 (5.8 mi, Austin).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.