78733 ZIP Code, Austin, TX
78733 is a ZIP code in Austin, Texas in Travis County. It covers 11 square miles of land, centered about 9.2 miles northwest of downtown Austin. The closest ZIP codes are 78735, 78730 and 78732. 9,029 people live here in 3,171 households. With about 806 people per square mile it is lightly settled, and most homes are owner-occupied (91%). Median household income is $206,368, well above the Texas median of $78,476; 50% of households have children under 18.
Quick facts
- Mailing city: Austin, TX
- County: Travis County
- Metro area: Austin
- Land area: 11 sq mi
- Population: 9,029
- Median household income: $206,368
- Carrier routes: 7 (3,393 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 9,029 |
| Households | 3,171 |
| Median household income | $206,368 |
| Income per person | $100,503 |
| Median age | 43.7 |
| Homeowners | 90.8% |
| Median home value | $1,008,600 |
| Median rent | $1,925 |
| Bachelor's degree or higher | 77.0% |
| Average commute (minutes) | 26 |
| Households with kids under 18 | 50.2% |
| Moved in the past year | 8.9% |
| Below the poverty line | 2.9% |
| Broadband internet | 98.9% |
| Speak a non-English language at home | 20.3% |
Household income
| % of households | Value |
|---|---|
| <$10K | 0.6% |
| $10–15K | 0.4% |
| $15–25K | 1.8% |
| $25–35K | 5.4% |
| $35–50K | 0.9% |
| $50–75K | 8.8% |
| $75–100K | 5.5% |
| $100–150K | 14.9% |
| $150–200K | 8.2% |
| $200K+ | 53.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 12.6% |
| 10–19 | 19.5% |
| 20–24 | 0.9% |
| 25–34 | 3.9% |
| 35–44 | 17.3% |
| 45–54 | 16.8% |
| 55–64 | 13.3% |
| 65–74 | 12.3% |
| 75+ | 3.3% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 48.9% |
| Owned outright | 35.3% |
| Rented | 8.4% |
| Vacant | 7.4% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 92.1% |
| Townhome | 1.6% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 6.3% |
Businesses in 78733
272 business establishments with 2,203 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 95
- Construction: 31
- Real Estate and Rental and Leasing: 31
- Other Services (except Public Administration): 20
- Health Care and Social Assistance: 17
- Administrative and Support and Waste Management and Remediation Services: 16
- Retail Trade: 13
- Finance and Insurance: 10
EDDM carrier routes
78733 has 7 USPS carrier routes with 3,393 residential and 81 business mailboxes. Open the EDDM route map.
Carrier routes in 78733
78733 has 7 USPS carrier routes (7 rural (R)) with 3,393 residential and 81 business mailboxes. Routes range from 188 homes (R190) to 639 homes (R008); the median route has 506 homes. The Census counted 3,171 households in 78733 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 1 |
| 500–749 | 5 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 78733 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R161 — Est. median household income $200,000+, 571 homes
- Route R075 — Est. median household income $200,000+, 506 homes
- Route R050 — Est. median household income $200,000+, 397 homes
- Route R190 — Est. median household income $200,000+, 188 homes
- Route R008 — Est. median household income $146,316, 639 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 R075 — Est. families with children under 18 60.7%, 506 homes
- Route R050 — Est. families with children under 18 56.3%, 397 homes
- Route R190 — Est. families with children under 18 55.0%, 188 homes
- Route R021 — Est. families with children under 18 49.0%, 504 homes
- Route R161 — Est. families with children under 18 46.5%, 571 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 R190 — Est. owner-occupied homes 97.7%, 188 homes
- Route R050 — Est. owner-occupied homes 97.2%, 397 homes
- Route R021 — Est. owner-occupied homes 93.7%, 504 homes
- Route R075 — Est. owner-occupied homes 93.2%, 506 homes
- Route R161 — Est. owner-occupied homes 87.9%, 571 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 R161 — Est. residents who moved in the past year 10.1%, 571 homes
- Route R021 — Est. residents who moved in the past year 9.2%, 504 homes
- Route R050 — Est. residents who moved in the past year 9.0%, 397 homes
- Route R008 — Est. residents who moved in the past year 8.9%, 639 homes
- Route R190 — Est. residents who moved in the past year 8.9%, 188 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 R075 — Est. homes built 2010 or later 17.0%, 506 homes
- Route R021 — Est. homes built 2010 or later 12.0%, 504 homes
- Route R008 — Est. homes built 2010 or later 11.2%, 639 homes
- Route R161 — Est. homes built 2010 or later 11.2%, 571 homes
- Route R009 — Est. homes built 2010 or later 10.2%, 588 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R050 — USPS business mailboxes 38, 397 homes
- Route R021 — USPS business mailboxes 31, 504 homes
- Route R161 — USPS business mailboxes 5, 571 homes
- Route R009 — USPS business mailboxes 3, 588 homes
- Route R075 — USPS business mailboxes 2, 506 homes
Select these 5 routes on the route map
Every carrier route in 78733
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R008 | Rural | 639 | 1 | $146,316 | 82.4% | 40.7% | 8.9% |
| R009 | Rural | 588 | 3 | $139,494 | 81.3% | 39.6% | 8.0% |
| R021 | Rural | 504 | 31 | $143,702 | 93.7% | 49.0% | 9.2% |
| R050 | Rural | 397 | 38 | $200,000+ | 97.2% | 56.3% | 9.0% |
| R075 | Rural | 506 | 2 | $200,000+ | 93.2% | 60.7% | 8.2% |
| R161 | Rural | 571 | 5 | $200,000+ | 87.9% | 46.5% | 10.1% |
| R190 | Rural | 188 | 1 | $200,000+ | 97.7% | 55.0% | 8.9% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78733 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
- 78735 — Austin city, TX (3.7 mi)
- 78730 — Austin city, TX (4 mi)
- 78732 — Steiner Ranch CDP, TX (4.1 mi)
- 78746 — Austin city, TX (4.8 mi)
- 78734 — Lakeway city, TX (5.5 mi)
- 78738 — Bee Cave city, TX (6.3 mi)
- 78736 — Austin city, TX (6.4 mi)
- 78731 — Austin city, TX (7.2 mi)
Areas that include 78733
- Austin, TX ZIP codes — 46 ZIP codes
- Travis County ZIP codes — 56 ZIP codes
- Austin ZIP code map — 89 ZIP codes
- Texas ZIP code data
Where it ranks
- No. 2 of 83: highest median household income in the Austin area
- No. 4 of 83: highest median home value in the Austin area
- No. 8 of 83: highest share of owner-occupied homes in the Austin area
- No. 3 of 83: highest share of households with children in the Austin area
- No. 15 of 83: highest median age in the Austin area
- No. 2 of 54: highest median household income in Travis County
- No. 4 of 54: highest median home value in Travis County
- No. 4 of 54: highest share of owner-occupied homes in Travis County
- No. 3 of 54: highest share of households with children in Travis County
- No. 6 of 54: highest median age in Travis County
- No. 2 of 44: highest median household income in Austin, TX
- No. 4 of 44: highest median home value in Austin, TX
Mail every home in 78733
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) 78733, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78733 in?
- 78733 is a Austin, TX mailing address. By land area, 19% lies inside Austin; the rest is outside any Census-defined city or community.
- What county is 78733 in?
- 78733 is in Travis County.
- What is the population of 78733?
- About 9,029 people (±1,035), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 9,347.
- What is the median household income in 78733?
- $206,368 (±$26,296), 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 78733?
- 7 USPS carrier routes with 3,393 residential and 81 business mailboxes (3,474 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78733?
- The closest, measured center to center: 78735 (3.7 mi, Austin), 78730 (4 mi, Austin), 78732 (4.1 mi, Steiner Ranch), 78746 (4.8 mi, Austin), 78734 (5.5 mi, Lakeway) and 78738 (6.3 mi, Bee Cave).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.