78589 ZIP Code, San Juan, TX

78589 is a ZIP code in San Juan, Texas in Hidalgo County. It covers 25 square miles of land. The closest ZIP codes are 78577, 78516 and 78503. 40,231 people live here in 11,709 households. At about 1,579 people per square mile it has suburban density, and most homes are owner-occupied (79%). Median household income is $54,285, below the Texas median of $78,476; 48% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents40,231
Households11,709
Median household income$54,285
Income per person$19,628
Median age31.2
Homeowners79.3%
Median home value$120,400
Median rent$937
Bachelor's degree or higher13.8%
Average commute (minutes)24.4
Households with kids under 1848.4%
Moved in the past year9.5%
Below the poverty line24.3%
Broadband internet89.6%
Speak a non-English language at home85.4%

Household income

% of householdsValue
<$10K4.7%
$10–15K5.3%
$15–25K10.9%
$25–35K9.7%
$35–50K16.0%
$50–75K19.7%
$75–100K15.9%
$100–150K11.0%
$150–200K4.8%
$200K+2.0%

Age

% of all residentsValue
<1015.6%
10–1919.6%
20–247.5%
25–3411.4%
35–4411.4%
45–5412.3%
55–649.8%
65–747.1%
75+5.4%

Tenure

% of housing unitsValue
Owned, with mortgage28.7%
Owned outright44.3%
Rented19.0%
Vacant8.1%

Type of building

% of housing unitsValue
Detached house79.2%
Townhome0.9%
2–4 units4.8%
5–19 units3.1%
20+ units0.0%
Mobile / other12.1%

Businesses in 78589

365 business establishments with 6,731 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

78589 has 16 USPS carrier routes with 12,788 residential and 724 business mailboxes. Open the EDDM route map.

Carrier routes in 78589

78589 has 16 USPS carrier routes (4 city (C), 12 rural (R)) with 12,788 residential and 724 business mailboxes. Routes range from 224 homes (C005) to 1,278 homes (R004); the median route has 911 homes. The Census counted 11,709 households in 78589 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4992
500–7492
750–9999
1,000–1,4992
1,500+0

Best routes in 78589 for…

Highest income

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

  1. Route R002 — Est. median household income $94,933, 962 homes
  2. Route R008 — Est. median household income $83,568, 892 homes
  3. Route R007 — Est. median household income $70,816, 960 homes
  4. Route R017 — Est. median household income $65,059, 376 homes
  5. Route C004 — Est. median household income $64,401, 792 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 R023 — Est. families with children under 18 65.0%, 288 homes
  2. Route R002 — Est. families with children under 18 62.1%, 962 homes
  3. Route R008 — Est. families with children under 18 59.6%, 892 homes
  4. Route R003 — Est. families with children under 18 58.1%, 932 homes
  5. Route R006 — Est. families with children under 18 57.3%, 983 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 R002 — Est. owner-occupied homes 90.9%, 962 homes
  2. Route R008 — Est. owner-occupied homes 88.9%, 892 homes
  3. Route R007 — Est. owner-occupied homes 87.1%, 960 homes
  4. Route R003 — Est. owner-occupied homes 83.6%, 932 homes
  5. Route R006 — Est. owner-occupied homes 83.4%, 983 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 C001 — Est. residents who moved in the past year 26.4%, 624 homes
  2. Route C005 — Est. residents who moved in the past year 19.0%, 224 homes
  3. Route R006 — Est. residents who moved in the past year 14.9%, 983 homes
  4. Route R017 — Est. residents who moved in the past year 12.8%, 376 homes
  5. Route R007 — Est. residents who moved in the past year 11.9%, 960 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 R008 — Est. homes built 2010 or later 31.7%, 892 homes
  2. Route R023 — Est. homes built 2010 or later 28.1%, 288 homes
  3. Route R002 — Est. homes built 2010 or later 27.1%, 962 homes
  4. Route R004 — Est. homes built 2010 or later 25.0%, 1,278 homes
  5. Route R007 — Est. homes built 2010 or later 22.8%, 960 homes

Select these 5 routes on the route map

Most businesses

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

  1. Route R018 — USPS business mailboxes 204, 929 homes
  2. Route R017 — USPS business mailboxes 75, 376 homes
  3. Route R003 — USPS business mailboxes 63, 932 homes
  4. Route C005 — USPS business mailboxes 63, 224 homes
  5. Route C002 — USPS business mailboxes 60, 869 homes

Select these 5 routes on the route map

Every carrier route in 78589

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City62431$48,95663.7%36.4%26.4%
C002City86960$38,02470.2%33.7%8.1%
C004City79244$64,40178.9%20.9%9.8%
C005City22463$47,17269.8%25.0%19.0%
R001Rural66223$39,31278.4%43.4%8.8%
R002Rural9628$94,93390.9%62.1%5.7%
R003Rural93263$57,01983.6%58.1%3.7%
R004Rural1,27827$45,79865.5%53.0%5.7%
R005Rural1,02039$52,49082.6%48.1%4.4%
R006Rural98322$62,69083.4%57.3%14.9%
R007Rural96014$70,81687.1%46.7%11.9%
R008Rural89214$83,56888.9%59.6%7.4%
R017Rural37675$65,05978.7%48.6%12.8%
R018Rural929204$57,87778.5%52.7%9.1%
R022Rural99724$43,34278.9%52.4%5.3%
R023Rural28813$58,76969.5%65.0%5.7%

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78589 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 78589

Where it ranks

Mail every home in 78589

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.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 78589, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 78589 in?
78589 is a San Juan, TX mailing address. By land area, 46% lies inside San Juan, 1% lies inside North Alamo and 1% lies inside Lopezville; the rest is outside any Census-defined city or community.
What county is 78589 in?
78589 is in Hidalgo County.
What is the population of 78589?
About 40,231 people (±1,143), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 38,987.
What is the median household income in 78589?
$54,285 (±$4,641), 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 78589?
16 USPS carrier routes with 12,788 residential and 724 business mailboxes (13,512 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 78589?
The closest, measured center to center: 78577 (2.3 mi, Pharr), 78516 (2.4 mi, Alamo), 78503 (5.6 mi, McAllen), 78537 (6.5 mi, Donna), 78557 (6.5 mi, Hidalgo) and 78501 (6.7 mi, McAllen).

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