78734 ZIP Code, Austin, TX

78734 is a ZIP code in Austin, Texas in Travis County. It covers 19 square miles of land, centered about 14 miles northwest of downtown Austin. The closest ZIP codes are 78732, 78645 and 78733. 22,145 people live here in 9,881 households. At about 1,169 people per square mile it has suburban density, and most homes are owner-occupied (84%). Median household income is $130,784, well above the Texas median of $78,476; the median age is 49.0, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents22,145
Households9,881
Median household income$130,784
Income per person$87,042
Median age49
Homeowners83.5%
Median home value$677,300
Median rent$1,851
Bachelor's degree or higher59.1%
Average commute (minutes)27.7
Households with kids under 1827.6%
Moved in the past year9.4%
Below the poverty line5.9%
Broadband internet97.3%
Speak a non-English language at home19.0%

Household income

% of householdsValue
<$10K2.3%
$10–15K0.9%
$15–25K2.7%
$25–35K4.0%
$35–50K9.6%
$50–75K10.4%
$75–100K10.0%
$100–150K15.5%
$150–200K10.8%
$200K+33.8%

Age

% of all residentsValue
<109.0%
10–1911.9%
20–242.8%
25–346.5%
35–4412.5%
45–5418.2%
55–6416.6%
65–7414.2%
75+8.4%

Tenure

% of housing unitsValue
Owned, with mortgage45.0%
Owned outright30.6%
Rented14.7%
Vacant9.7%

Type of building

% of housing unitsValue
Detached house73.4%
Townhome7.3%
2–4 units3.5%
5–19 units1.8%
20+ units6.7%
Mobile / other7.2%

Businesses in 78734

1,003 business establishments with 7,582 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

78734 has 18 USPS carrier routes with 10,877 residential and 832 business mailboxes. Open the EDDM route map.

Carrier routes in 78734

78734 has 18 USPS carrier routes (18 rural (R)) with 10,877 residential and 832 business mailboxes. Routes range from 318 homes (R034) to 752 homes (R062); the median route has 640 homes. The Census counted 9,881 households in 78734 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4993
500–74914
750–9991
1,000–1,4990
1,500+0

Best routes in 78734 for…

Highest income

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

  1. Route R030 — Est. median household income $200,000+, 611 homes
  2. Route R034 — Est. median household income $200,000+, 318 homes
  3. Route R035 — Est. median household income $190,671, 602 homes
  4. Route R142 — Est. median household income $181,775, 683 homes
  5. Route R082 — Est. median household income $176,232, 576 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.

  1. Route R010 — Est. families with children under 18 44.3%, 749 homes
  2. Route R237 — Est. families with children under 18 42.7%, 663 homes
  3. Route R142 — Est. families with children under 18 36.5%, 683 homes
  4. Route R035 — Est. families with children under 18 33.6%, 602 homes
  5. Route R152 — Est. families with children under 18 31.4%, 644 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.

  1. Route R013 — Est. owner-occupied homes 96.1%, 585 homes
  2. Route R108 — Est. owner-occupied homes 95.7%, 515 homes
  3. Route R030 — Est. owner-occupied homes 94.9%, 611 homes
  4. Route R035 — Est. owner-occupied homes 94.3%, 602 homes
  5. Route R014 — Est. owner-occupied homes 89.6%, 458 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.

  1. Route R029 — Est. residents who moved in the past year 17.2%, 665 homes
  2. Route R035 — Est. residents who moved in the past year 16.4%, 602 homes
  3. Route R007 — Est. residents who moved in the past year 16.2%, 644 homes
  4. Route R015 — Est. residents who moved in the past year 14.0%, 705 homes
  5. Route R091 — Est. residents who moved in the past year 13.4%, 635 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.

  1. Route R015 — Est. homes built 2010 or later 35.6%, 705 homes
  2. Route R191 — Est. homes built 2010 or later 29.7%, 654 homes
  3. Route R035 — Est. homes built 2010 or later 29.4%, 602 homes
  4. Route R091 — Est. homes built 2010 or later 28.9%, 635 homes
  5. Route R237 — Est. homes built 2010 or later 28.8%, 663 homes

Select these 5 routes on the route map

Most businesses

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

  1. Route R034 — USPS business mailboxes 183, 318 homes
  2. Route R091 — USPS business mailboxes 107, 635 homes
  3. Route R036 — USPS business mailboxes 82, 418 homes
  4. Route R237 — USPS business mailboxes 72, 663 homes
  5. Route R108 — USPS business mailboxes 68, 515 homes

Select these 5 routes on the route map

Every carrier route in 78734

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R007Rural64429$103,53678.3%10.2%16.2%
R010Rural7490$83,81472.2%44.3%5.4%
R013Rural58538$169,58296.1%24.8%10.7%
R014Rural4581$175,53589.6%23.4%1.6%
R015Rural70515$95,80572.2%28.5%14.0%
R029Rural66520$80,76788.2%19.6%17.2%
R030Rural6111$200,000+94.9%24.8%7.1%
R034Rural318183$200,000+89.5%31.4%6.9%
R035Rural6024$190,67194.3%33.6%16.4%
R036Rural41882$123,55385.3%26.3%9.4%
R062Rural75232$153,14486.2%29.2%6.5%
R082Rural5760$176,23286.2%22.9%5.3%
R091Rural635107$119,51183.0%22.8%13.4%
R108Rural51568$167,11995.7%21.2%7.9%
R142Rural68362$181,77587.2%36.5%1.1%
R152Rural64457$109,07282.4%31.4%6.7%
R191Rural65461$172,41580.0%31.2%9.5%
R237Rural66372$115,25781.3%42.7%7.1%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78734 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 78734

Where it ranks

Mail every home in 78734

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) 78734, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 78734 in?
78734 is a Austin, TX mailing address. By land area, 37% lies inside Lakeway, 21% lies inside Hudson Bend and 3% lies inside Austin; the rest is outside any Census-defined city or community.
What county is 78734 in?
78734 is in Travis County.
What is the population of 78734?
About 22,145 people (±1,362), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 22,963.
What is the median household income in 78734?
$130,784 (±$9,280), 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 78734?
18 USPS carrier routes with 10,877 residential and 832 business mailboxes (11,709 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 78734?
The closest, measured center to center: 78732 (3.3 mi, Steiner Ranch), 78645 (5 mi, Lago Vista), 78733 (5.5 mi, Austin), 78738 (5.6 mi, Bee Cave), 78730 (6.5 mi, Austin) and 78726 (7.3 mi, Austin).

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