78209 ZIP Code, San Antonio, TX

78209 is a ZIP code in San Antonio, Texas in Bexar County. It covers 10 square miles of land, centered about 5.0 miles northeast of downtown San Antonio. The closest ZIP codes are 78234, 78212 and 78208. 43,400 people live here in 20,328 households. At about 4,267 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (50% own). Median household income is $86,514, above the Texas median of $78,476; 22% of residents moved in during the past year.

Quick facts

Key figures

MeasureValue
Residents43,400
Households20,328
Median household income$86,514
Income per person$72,305
Median age38.9
Homeowners50.0%
Median home value$497,000
Median rent$1,447
Bachelor's degree or higher60.9%
Average commute (minutes)18.3
Households with kids under 1823.7%
Moved in the past year21.9%
Below the poverty line9.3%
Broadband internet93.0%
Speak a non-English language at home18.6%

Household income

% of householdsValue
<$10K6.1%
$10–15K1.6%
$15–25K3.8%
$25–35K10.0%
$35–50K8.0%
$50–75K14.1%
$75–100K12.3%
$100–150K11.7%
$150–200K8.2%
$200K+24.2%

Age

% of all residentsValue
<1011.9%
10–1911.7%
20–246.7%
25–3413.7%
35–4414.9%
45–5410.9%
55–6412.3%
65–749.8%
75+8.0%

Tenure

% of housing unitsValue
Owned, with mortgage25.6%
Owned outright18.9%
Rented43.9%
Vacant11.7%

Type of building

% of housing unitsValue
Detached house45.3%
Townhome2.8%
2–4 units16.3%
5–19 units15.1%
20+ units20.3%
Mobile / other0.1%

Businesses in 78209

1,858 business establishments with 27,895 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

78209 has 38 USPS carrier routes with 21,801 residential and 2,161 business mailboxes. Open the EDDM route map.

Carrier routes in 78209

78209 has 38 USPS carrier routes (38 city (C)) with 21,801 residential and 2,161 business mailboxes. Routes range from 236 homes (C060) to 1,108 homes (C055); the median route has 523 homes. The Census counted 20,328 households in 78209 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2492
250–49915
500–74911
750–9998
1,000–1,4992
1,500+0

Best routes in 78209 for…

Highest income

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

  1. Route C009 — Est. median household income $200,000+, 380 homes
  2. Route C020 — Est. median household income $200,000+, 364 homes
  3. Route C012 — Est. median household income $200,000+, 358 homes
  4. Route C028 — Est. median household income $200,000+, 330 homes
  5. Route C038 — Est. median household income $200,000+, 328 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 C042 — Est. families with children under 18 53.4%, 355 homes
  2. Route C030 — Est. families with children under 18 47.5%, 386 homes
  3. Route C009 — Est. families with children under 18 47.1%, 380 homes
  4. Route C029 — Est. families with children under 18 44.3%, 307 homes
  5. Route C038 — Est. families with children under 18 42.2%, 328 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 C028 — Est. owner-occupied homes 92.0%, 330 homes
  2. Route C038 — Est. owner-occupied homes 91.8%, 328 homes
  3. Route C032 — Est. owner-occupied homes 91.3%, 531 homes
  4. Route C035 — Est. owner-occupied homes 90.1%, 410 homes
  5. Route C012 — Est. owner-occupied homes 87.9%, 358 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 C055 — Est. residents who moved in the past year 51.1%, 1,108 homes
  2. Route C002 — Est. residents who moved in the past year 37.3%, 389 homes
  3. Route C030 — Est. residents who moved in the past year 31.9%, 386 homes
  4. Route C006 — Est. residents who moved in the past year 29.2%, 866 homes
  5. Route C051 — Est. residents who moved in the past year 28.0%, 603 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 C055 — Est. homes built 2010 or later 26.3%, 1,108 homes
  2. Route C052 — Est. homes built 2010 or later 25.3%, 740 homes
  3. Route C036 — Est. homes built 2010 or later 23.2%, 505 homes
  4. Route C054 — Est. homes built 2010 or later 17.9%, 778 homes
  5. Route C037 — Est. homes built 2010 or later 16.2%, 930 homes

Select these 5 routes on the route map

Most businesses

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

  1. Route C024 — USPS business mailboxes 406, 854 homes
  2. Route C003 — USPS business mailboxes 196, 644 homes
  3. Route C055 — USPS business mailboxes 184, 1,108 homes
  4. Route C004 — USPS business mailboxes 167, 550 homes
  5. Route C013 — USPS business mailboxes 112, 302 homes

Select these 5 routes on the route map

Every carrier route in 78209

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City3203$150,49763.7%14.9%14.4%
C002City38918$191,47472.1%25.5%37.3%
C003City644196$95,83449.8%20.5%24.3%
C004City550167$100,73353.6%21.2%22.5%
C005City47774$108,86265.0%22.5%24.7%
C006City86637$78,73254.6%32.0%29.2%
C008City36726$149,94386.0%33.6%11.7%
C009City38026$200,000+87.3%47.1%13.4%
C011City90552$48,58929.3%10.9%26.3%
C012City3581$200,000+87.9%32.6%6.3%
C013City302112$188,27474.1%28.5%14.3%
C014City1,04545$82,87741.5%14.6%22.6%
C015City5151$91,81759.5%31.6%26.1%
C017City75764$99,54352.9%23.1%22.3%
C020City3644$200,000+82.7%36.2%13.7%
C021City24616$173,06184.6%28.8%14.6%
C022City736103$141,80459.8%17.3%25.7%
C023City36732$70,57463.7%23.4%0.1%
C024City854406$78,11148.4%17.9%14.4%
C025City67389$138,39272.4%21.0%27.8%
C028City3301$200,000+92.0%34.0%5.4%
C029City3070$200,000+85.4%44.3%19.1%
C030City3864$185,73280.4%47.5%31.9%
C032City5311$123,49691.3%36.5%13.9%
C034City56410$155,96283.8%34.2%24.9%
C035City4103$146,04190.1%31.1%5.4%
C036City50558$157,35376.3%27.1%12.4%
C037City9308$102,09273.0%26.1%9.8%
C038City3282$200,000+91.8%42.2%14.9%
C041City66179$74,61264.2%21.9%9.7%
C042City3550$180,55584.9%53.4%9.3%
C046City98779$71,04447.8%21.4%21.6%
C048City92772$45,27829.4%16.1%24.3%
C051City6036$95,47481.2%21.4%28.0%
C052City740100$74,92042.5%32.8%25.5%
C054City77878$108,05364.5%22.6%12.4%
C055City1,108184$68,11816.7%22.4%51.1%
C060City2364$89,55359.9%27.6%25.4%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78209 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 78209

Where it ranks

Mail every home in 78209

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.

San Antonio EDDM mailing

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 78209, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 78209 in?
78209 is a San Antonio, TX mailing address. By land area, 66% lies inside San Antonio, 18% lies inside Alamo Heights and 16% lies inside Terrell Hills.
What county is 78209 in?
78209 is in Bexar County.
What is the population of 78209?
About 43,400 people (±2,103), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 42,456.
What is the median household income in 78209?
$86,514 (±$4,121), 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 78209?
38 USPS carrier routes with 21,801 residential and 2,161 business mailboxes (23,962 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 78209?
The closest, measured center to center: 78234 (2.2 mi, San Antonio), 78212 (2.8 mi, San Antonio), 78208 (3.4 mi, San Antonio), 78215 (3.6 mi, San Antonio), 78218 (3.6 mi, San Antonio) and 78216 (4 mi, San Antonio).

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