78723 ZIP Code, Austin, TX
78723 is a ZIP code in Austin, Texas in Travis County. It covers 7.1 square miles of land, centered about 4.3 miles northeast of downtown Austin. The closest ZIP codes are 78722, 78752 and 78721. 38,129 people live here in 16,669 households. At about 5,401 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (49% own). Median household income is $100,329, above the Texas median of $78,476; 21% of residents moved in during the past year.
Quick facts
- Mailing city: Austin, TX
- County: Travis County
- Metro area: Austin
- Land area: 7.1 sq mi
- Population: 38,129
- Median household income: $100,329
- Carrier routes: 20 (19,936 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 38,129 |
| Households | 16,669 |
| Median household income | $100,329 |
| Income per person | $55,797 |
| Median age | 34.8 |
| Homeowners | 48.6% |
| Median home value | $562,300 |
| Median rent | $1,724 |
| Bachelor's degree or higher | 58.4% |
| Average commute (minutes) | 26.1 |
| Households with kids under 18 | 28.1% |
| Moved in the past year | 20.7% |
| Below the poverty line | 12.3% |
| Broadband internet | 92.2% |
| Speak a non-English language at home | 30.3% |
Household income
| % of households | Value |
|---|---|
| <$10K | 5.5% |
| $10–15K | 2.1% |
| $15–25K | 5.9% |
| $25–35K | 3.9% |
| $35–50K | 9.0% |
| $50–75K | 13.6% |
| $75–100K | 9.7% |
| $100–150K | 18.2% |
| $150–200K | 12.6% |
| $200K+ | 19.4% |
Age
| % of all residents | Value |
|---|---|
| <10 | 15.5% |
| 10–19 | 8.2% |
| 20–24 | 4.8% |
| 25–34 | 21.9% |
| 35–44 | 19.8% |
| 45–54 | 11.3% |
| 55–64 | 6.9% |
| 65–74 | 8.4% |
| 75+ | 3.3% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 33.2% |
| Owned outright | 12.8% |
| Rented | 48.0% |
| Vacant | 6.0% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 44.3% |
| Townhome | 10.3% |
| 2–4 units | 4.8% |
| 5–19 units | 9.2% |
| 20+ units | 31.2% |
| Mobile / other | 0.2% |
Businesses in 78723
876 business establishments with 16,680 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 140
- Health Care and Social Assistance: 137
- Retail Trade: 105
- Accommodation and Food Services: 99
- Other Services (except Public Administration): 83
- Real Estate and Rental and Leasing: 67
- Administrative and Support and Waste Management and Remediation Services: 49
- Construction: 45
EDDM carrier routes
78723 has 20 USPS carrier routes with 19,936 residential and 912 business mailboxes. Open the EDDM route map.
Carrier routes in 78723
78723 has 20 USPS carrier routes (20 city (C)) with 19,936 residential and 912 business mailboxes. Routes range from 530 homes (C026) to 2,034 homes (C033); the median route has 857 homes. The Census counted 16,669 households in 78723 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 0 |
| 500–749 | 8 |
| 750–999 | 4 |
| 1,000–1,499 | 5 |
| 1,500+ | 3 |
Best routes in 78723 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route C001 — Est. median household income $139,377, 1,176 homes
- Route C019 — Est. median household income $133,528, 645 homes
- Route C005 — Est. median household income $131,363, 571 homes
- Route C030 — Est. median household income $126,315, 688 homes
- Route C017 — Est. median household income $126,084, 604 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 C005 — Est. families with children under 18 39.1%, 571 homes
- Route C017 — Est. families with children under 18 37.9%, 604 homes
- Route C030 — Est. families with children under 18 37.7%, 688 homes
- Route C016 — Est. families with children under 18 37.4%, 863 homes
- Route C029 — Est. families with children under 18 36.7%, 1,126 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 C028 — Est. owner-occupied homes 79.3%, 867 homes
- Route C019 — Est. owner-occupied homes 78.5%, 645 homes
- Route C030 — Est. owner-occupied homes 75.3%, 688 homes
- Route C016 — Est. owner-occupied homes 71.2%, 863 homes
- Route C001 — Est. owner-occupied homes 68.9%, 1,176 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 C003 — Est. residents who moved in the past year 30.1%, 1,130 homes
- Route C006 — Est. residents who moved in the past year 27.0%, 1,710 homes
- Route C029 — Est. residents who moved in the past year 26.3%, 1,126 homes
- Route C012 — Est. residents who moved in the past year 23.3%, 705 homes
- Route C026 — Est. residents who moved in the past year 21.8%, 530 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 C007 — Est. homes built 2010 or later 66.0%, 1,189 homes
- Route C033 — Est. homes built 2010 or later 58.3%, 2,034 homes
- Route C001 — Est. homes built 2010 or later 48.3%, 1,176 homes
- Route C013 — Est. homes built 2010 or later 44.4%, 1,908 homes
- Route C003 — Est. homes built 2010 or later 30.8%, 1,130 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C006 — USPS business mailboxes 220, 1,710 homes
- Route C020 — USPS business mailboxes 140, 727 homes
- Route C007 — USPS business mailboxes 89, 1,189 homes
- Route C017 — USPS business mailboxes 78, 604 homes
- Route C031 — USPS business mailboxes 62, 851 homes
Select these 5 routes on the route map
Every carrier route in 78723
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 1,176 | 1 | $139,377 | 68.9% | 27.0% | 14.2% |
| C003 | City | 1,130 | 11 | $107,961 | 57.0% | 34.0% | 30.1% |
| C004 | City | 802 | 31 | $82,141 | 38.0% | 21.5% | 9.9% |
| C005 | City | 571 | 15 | $131,363 | 56.3% | 39.1% | 12.3% |
| C006 | City | 1,710 | 220 | $62,054 | 7.7% | 28.9% | 27.0% |
| C007 | City | 1,189 | 89 | $116,826 | 15.4% | 18.2% | 18.2% |
| C011 | City | 1,206 | 44 | $113,658 | 67.9% | 26.2% | 15.1% |
| C012 | City | 705 | 26 | $78,068 | 34.8% | 20.6% | 23.3% |
| C013 | City | 1,908 | 56 | $106,288 | 64.3% | 20.4% | 18.7% |
| C016 | City | 863 | 38 | $120,466 | 71.2% | 37.4% | 15.1% |
| C017 | City | 604 | 78 | $126,084 | 52.4% | 37.9% | 12.6% |
| C019 | City | 645 | 4 | $133,528 | 78.5% | 28.0% | 12.5% |
| C020 | City | 727 | 140 | $77,630 | 34.1% | 28.4% | 21.1% |
| C026 | City | 530 | 10 | $64,360 | 47.8% | 18.1% | 21.8% |
| C028 | City | 867 | 13 | $124,106 | 79.3% | 34.1% | 18.1% |
| C029 | City | 1,126 | 42 | $80,849 | 46.4% | 36.7% | 26.3% |
| C030 | City | 688 | 10 | $126,315 | 75.3% | 37.7% | 12.3% |
| C031 | City | 851 | 62 | $111,014 | 60.2% | 23.4% | 17.1% |
| C032 | City | 604 | 13 | $109,589 | 67.1% | 27.0% | 17.5% |
| C033 | City | 2,034 | 9 | $107,994 | 41.9% | 18.6% | 17.9% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78723 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
- 78722 — Austin city, TX (2 mi)
- 78752 — Austin city, TX (2.2 mi)
- 78721 — Austin city, TX (2.3 mi)
- 78751 — Austin city, TX (2.3 mi)
- 78712 — Austin city, TX (3.1 mi)
- 78705 — Austin city, TX (3.2 mi)
- 78702 — Austin city, TX (3.3 mi)
- 78756 — Austin city, TX (3.5 mi)
Areas that include 78723
- 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. 16 of 83: highest share of residents who moved in during the past year in the Austin area
- No. 23 of 83: lowest median age in the Austin area
- No. 12 of 54: highest share of residents who moved in during the past year in Travis County
- No. 17 of 54: lowest median age in Travis County
- No. 13 of 44: highest share of residents who moved in during the past year in Austin, TX
Mail every home in 78723
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) 78723, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78723 in?
- 78723 is a Austin, TX mailing address. By land area, 100% lies inside Austin.
- What county is 78723 in?
- 78723 is in Travis County.
- What is the population of 78723?
- About 38,129 people (±2,594), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 34,522.
- What is the median household income in 78723?
- $100,329 (±$10,846), 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 78723?
- 20 USPS carrier routes with 19,936 residential and 912 business mailboxes (20,848 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78723?
- The closest, measured center to center: 78722 (2 mi, Austin), 78752 (2.2 mi, Austin), 78721 (2.3 mi, Austin), 78751 (2.3 mi, Austin), 78712 (3.1 mi, Austin) and 78705 (3.2 mi, Austin).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.