78703 ZIP Code, Austin, TX

78703 is a ZIP code in Austin, Texas in Travis County. It covers 5.6 square miles of land, centered about 2.3 miles northwest of downtown Austin. The closest ZIP codes are 78705, 78701 and 78712. 23,483 people live here in 11,375 households. At about 4,176 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (54% own). Median household income is $153,036, well above the Texas median of $78,476.

Quick facts

Key figures

MeasureValue
Residents23,483
Households11,375
Median household income$153,036
Income per person$131,918
Median age40.7
Homeowners53.5%
Median home value$1,495,800
Median rent$2,181
Bachelor's degree or higher86.0%
Average commute (minutes)17.6
Households with kids under 1819.7%
Moved in the past year16.9%
Below the poverty line6.8%
Broadband internet94.6%
Speak a non-English language at home13.1%

Household income

% of householdsValue
<$10K2.4%
$10–15K1.5%
$15–25K3.2%
$25–35K3.7%
$35–50K5.5%
$50–75K11.5%
$75–100K6.0%
$100–150K15.6%
$150–200K9.8%
$200K+40.6%

Age

% of all residentsValue
<108.5%
10–1910.6%
20–243.0%
25–3420.2%
35–4415.5%
45–5413.7%
55–6414.0%
65–748.2%
75+6.3%

Tenure

% of housing unitsValue
Owned, with mortgage31.8%
Owned outright19.0%
Rented43.5%
Vacant5.7%

Type of building

% of housing unitsValue
Detached house47.6%
Townhome6.0%
2–4 units9.3%
5–19 units14.8%
20+ units21.8%
Mobile / other0.5%

Businesses in 78703

1,253 business establishments with 17,204 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

78703 has 23 USPS carrier routes with 11,625 residential and 807 business mailboxes. Open the EDDM route map.

Carrier routes in 78703

78703 has 23 USPS carrier routes (23 city (C)) with 11,625 residential and 807 business mailboxes. Routes range from 286 homes (C044) to 924 homes (C022); the median route has 465 homes. The Census counted 11,375 households in 78703 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–49912
500–7498
750–9993
1,000–1,4990
1,500+0

Best routes in 78703 for…

Highest income

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

  1. Route C005 — Est. median household income $200,000+, 448 homes
  2. Route C048 — Est. median household income $200,000+, 396 homes
  3. Route C019 — Est. median household income $200,000+, 380 homes
  4. Route C023 — Est. median household income $200,000+, 378 homes
  5. Route C008 — Est. median household income $200,000+, 375 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 C008 — Est. families with children under 18 46.8%, 375 homes
  2. Route C048 — Est. families with children under 18 40.9%, 396 homes
  3. Route C023 — Est. families with children under 18 37.5%, 378 homes
  4. Route C010 — Est. families with children under 18 34.3%, 317 homes
  5. Route C005 — Est. families with children under 18 34.0%, 448 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 C008 — Est. owner-occupied homes 91.1%, 375 homes
  2. Route C015 — Est. owner-occupied homes 88.5%, 369 homes
  3. Route C026 — Est. owner-occupied homes 88.4%, 290 homes
  4. Route C044 — Est. owner-occupied homes 87.6%, 286 homes
  5. Route C048 — Est. owner-occupied homes 87.0%, 396 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 C017 — Est. residents who moved in the past year 50.1%, 906 homes
  2. Route C001 — Est. residents who moved in the past year 37.9%, 777 homes
  3. Route C006 — Est. residents who moved in the past year 34.9%, 668 homes
  4. Route C022 — Est. residents who moved in the past year 23.9%, 924 homes
  5. Route C052 — Est. residents who moved in the past year 19.1%, 564 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 C017 — Est. homes built 2010 or later 44.6%, 906 homes
  2. Route C001 — Est. homes built 2010 or later 32.3%, 777 homes
  3. Route C010 — Est. homes built 2010 or later 20.9%, 317 homes
  4. Route C023 — Est. homes built 2010 or later 20.4%, 378 homes
  5. Route C044 — Est. homes built 2010 or later 19.0%, 286 homes

Select these 5 routes on the route map

Most businesses

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

  1. Route C006 — USPS business mailboxes 180, 668 homes
  2. Route C001 — USPS business mailboxes 127, 777 homes
  3. Route C017 — USPS business mailboxes 116, 906 homes
  4. Route C021 — USPS business mailboxes 85, 562 homes
  5. Route C010 — USPS business mailboxes 60, 317 homes

Select these 5 routes on the route map

Every carrier route in 78703

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City777127$160,04129.6%4.8%37.9%
C002City5171$149,89450.9%21.4%18.3%
C003City4651$167,04465.5%31.5%6.3%
C005City44830$200,000+85.2%34.0%7.3%
C006City668180$131,24923.9%11.1%34.9%
C007City5562$152,43265.0%17.6%8.0%
C008City3750$200,000+91.1%46.8%14.3%
C009City56715$67,49839.0%14.6%10.8%
C010City31760$200,000+80.9%34.3%14.3%
C015City3690$200,000+88.5%34.0%6.2%
C017City906116$176,01811.5%0.2%50.1%
C019City3804$200,000+86.0%33.4%7.1%
C020City29521$149,38783.5%25.4%5.4%
C021City56285$121,81155.7%5.3%17.4%
C022City92433$108,46643.1%18.8%23.9%
C023City37830$200,000+78.3%37.5%10.2%
C026City2900$200,000+88.4%24.9%15.5%
C041City57535$99,91260.9%7.7%10.4%
C044City2862$200,000+87.6%29.8%14.3%
C048City3960$200,000+87.0%40.9%15.8%
C052City56418$102,87945.4%10.4%19.1%
C054City36044$200,000+74.9%33.2%10.0%
C056City6503$144,08650.9%22.0%14.6%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78703 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 78703

Where it ranks

Mail every home in 78703

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) 78703, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 78703 in?
78703 is a Austin, TX mailing address. By land area, 100% lies inside Austin.
What county is 78703 in?
78703 is in Travis County.
What is the population of 78703?
About 23,483 people (±1,603), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 22,194.
What is the median household income in 78703?
$153,036 (±$18,011), 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 78703?
23 USPS carrier routes with 11,625 residential and 807 business mailboxes (12,432 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 78703?
The closest, measured center to center: 78705 (1.6 mi, Austin), 78701 (2.1 mi, Austin), 78712 (2.1 mi, Austin), 78756 (2.5 mi, Austin), 78746 (2.6 mi, Austin) and 78751 (2.9 mi, Austin).

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