78227 ZIP Code, San Antonio, TX

78227 is a ZIP code in San Antonio, Texas in Bexar County. It covers 19 square miles of land, centered about 9.1 miles west of downtown San Antonio. The closest ZIP codes are 78236, 78243 and 78242. 44,035 people live here in 14,074 households. At about 2,307 people per square mile it has suburban density, and owners and renters are mixed (59% own). Median household income is $51,519, well below the Texas median of $78,476.

Quick facts

Key figures

MeasureValue
Residents44,035
Households14,074
Median household income$51,519
Income per person$21,103
Median age34.1
Homeowners59.0%
Median home value$159,700
Median rent$1,207
Bachelor's degree or higher10.6%
Average commute (minutes)27.6
Households with kids under 1838.6%
Moved in the past year13.1%
Below the poverty line20.7%
Broadband internet89.3%
Speak a non-English language at home48.1%

Household income

% of householdsValue
<$10K7.2%
$10–15K5.7%
$15–25K9.4%
$25–35K11.1%
$35–50K14.8%
$50–75K21.0%
$75–100K13.6%
$100–150K12.1%
$150–200K3.4%
$200K+1.5%

Age

% of all residentsValue
<1015.0%
10–1916.6%
20–245.2%
25–3414.1%
35–4414.8%
45–5411.0%
55–6410.8%
65–747.5%
75+4.9%

Tenure

% of housing unitsValue
Owned, with mortgage26.5%
Owned outright26.5%
Rented36.3%
Vacant10.7%

Type of building

% of housing unitsValue
Detached house70.1%
Townhome2.4%
2–4 units5.2%
5–19 units12.4%
20+ units5.2%
Mobile / other4.7%

Businesses in 78227

476 business establishments with 9,904 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

78227 has 17 USPS carrier routes with 17,189 residential and 851 business mailboxes. Open the EDDM route map.

Carrier routes in 78227

78227 has 17 USPS carrier routes (17 city (C)) with 17,189 residential and 851 business mailboxes. Routes range from 704 homes (C009) to 1,411 homes (C024); the median route has 947 homes. The Census counted 14,074 households in 78227 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4990
500–7491
750–9998
1,000–1,4998
1,500+0

Best routes in 78227 for…

Highest income

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

  1. Route C009 — Est. median household income $79,197, 704 homes
  2. Route C012 — Est. median household income $72,614, 1,361 homes
  3. Route C021 — Est. median household income $70,033, 790 homes
  4. Route C004 — Est. median household income $58,728, 1,047 homes
  5. Route C003 — Est. median household income $57,866, 869 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 C021 — Est. families with children under 18 46.0%, 790 homes
  2. Route C004 — Est. families with children under 18 42.5%, 1,047 homes
  3. Route C008 — Est. families with children under 18 42.1%, 847 homes
  4. Route C013 — Est. families with children under 18 41.8%, 761 homes
  5. Route C012 — Est. families with children under 18 41.2%, 1,361 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 81.4%, 847 homes
  2. Route C021 — Est. owner-occupied homes 79.8%, 790 homes
  3. Route C004 — Est. owner-occupied homes 75.9%, 1,047 homes
  4. Route C016 — Est. owner-occupied homes 71.0%, 1,198 homes
  5. Route C015 — Est. owner-occupied homes 70.5%, 947 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 C009 — Est. residents who moved in the past year 33.3%, 704 homes
  2. Route C024 — Est. residents who moved in the past year 31.5%, 1,411 homes
  3. Route C023 — Est. residents who moved in the past year 29.4%, 942 homes
  4. Route C003 — Est. residents who moved in the past year 21.1%, 869 homes
  5. Route C006 — Est. residents who moved in the past year 18.0%, 1,113 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 C024 — Est. homes built 2010 or later 27.5%, 1,411 homes
  2. Route C013 — Est. homes built 2010 or later 23.7%, 761 homes
  3. Route C009 — Est. homes built 2010 or later 10.7%, 704 homes
  4. Route C020 — Est. homes built 2010 or later 9.3%, 824 homes
  5. Route C018 — Est. homes built 2010 or later 4.0%, 1,352 homes

Select these 5 routes on the route map

Most businesses

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

  1. Route C002 — USPS business mailboxes 178, 1,025 homes
  2. Route C024 — USPS business mailboxes 123, 1,411 homes
  3. Route C013 — USPS business mailboxes 81, 761 homes
  4. Route C014 — USPS business mailboxes 79, 932 homes
  5. Route C015 — USPS business mailboxes 67, 947 homes

Select these 5 routes on the route map

Every carrier route in 78227

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C002City1,025178$41,79353.9%35.1%9.2%
C003City86913$57,86649.4%36.3%21.1%
C004City1,0473$58,72875.9%42.5%4.7%
C006City1,11336$44,83154.1%32.1%18.0%
C008City84712$50,03181.4%42.1%2.6%
C009City70416$79,19743.4%32.8%33.3%
C012City1,36112$72,61462.3%41.2%8.6%
C013City76181$41,04947.7%41.8%13.7%
C014City93279$45,72656.1%35.3%2.5%
C015City94767$54,06470.5%27.1%11.8%
C016City1,19811$56,69671.0%38.2%11.1%
C017City1,06666$53,11864.4%41.1%15.4%
C018City1,35210$48,14168.4%31.8%7.9%
C020City82457$41,79160.0%24.4%7.2%
C021City79020$70,03379.8%46.0%7.4%
C023City94267$53,23541.9%36.9%29.4%
C024City1,411123$46,46233.4%35.0%31.5%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78227 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 78227

Where it ranks

Mail every home in 78227

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) 78227, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 78227 in?
78227 is a San Antonio, TX mailing address. By land area, 71% lies inside San Antonio; the rest is outside any Census-defined city or community.
What county is 78227 in?
78227 is in Bexar County.
What is the population of 78227?
About 44,035 people (±2,834), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 46,594.
What is the median household income in 78227?
$51,519 (±$3,232), 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 78227?
17 USPS carrier routes with 17,189 residential and 851 business mailboxes (18,043 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 78227?
The closest, measured center to center: 78236 (1.1 mi, Lackland AFB), 78243 (3.1 mi, San Antonio), 78242 (3.4 mi, San Antonio), 78226 (4.2 mi, San Antonio), 78252 (4.8 mi, San Antonio) and 78237 (4.9 mi, San Antonio).

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