78570 ZIP Code, Mercedes, TX
78570 is a ZIP code in Mercedes, Texas in Hidalgo County. It covers 75 square miles of land. The closest ZIP codes are 78559, 78599 and 78579. 34,348 people live here in 9,161 households. With about 456 people per square mile it is lightly settled, and most homes are owner-occupied (74%). Median household income is $41,965, well below the Texas median of $78,476; 46% of households have children under 18.
Quick facts
- Mailing city: Mercedes, TX
- County: Hidalgo County
- Land area: 75 sq mi
- Population: 34,348
- Median household income: $41,965
- Carrier routes: 13 (10,504 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 34,348 |
| Households | 9,161 |
| Median household income | $41,965 |
| Income per person | $16,217 |
| Median age | 27.9 |
| Homeowners | 74.2% |
| Median home value | $86,500 |
| Median rent | $803 |
| Bachelor's degree or higher | 11.4% |
| Average commute (minutes) | 20.7 |
| Households with kids under 18 | 45.8% |
| Moved in the past year | 7.0% |
| Below the poverty line | 36.0% |
| Broadband internet | 78.4% |
| Speak a non-English language at home | 79.2% |
Household income
| % of households | Value |
|---|---|
| <$10K | 6.9% |
| $10–15K | 11.2% |
| $15–25K | 10.5% |
| $25–35K | 15.1% |
| $35–50K | 10.6% |
| $50–75K | 18.0% |
| $75–100K | 9.5% |
| $100–150K | 12.5% |
| $150–200K | 3.7% |
| $200K+ | 2.0% |
Age
| % of all residents | Value |
|---|---|
| <10 | 17.4% |
| 10–19 | 21.0% |
| 20–24 | 7.3% |
| 25–34 | 12.4% |
| 35–44 | 12.3% |
| 45–54 | 9.0% |
| 55–64 | 8.6% |
| 65–74 | 6.3% |
| 75+ | 5.6% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 20.8% |
| Owned outright | 43.7% |
| Rented | 21.5% |
| Vacant | 14.0% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 70.3% |
| Townhome | 0.4% |
| 2–4 units | 10.0% |
| 5–19 units | 1.9% |
| 20+ units | 1.6% |
| Mobile / other | 15.7% |
Businesses in 78570
312 business establishments with 5,003 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 128
- Health Care and Social Assistance: 39
- Accommodation and Food Services: 24
- Other Services (except Public Administration): 22
- Construction: 17
- Finance and Insurance: 16
- Wholesale Trade: 14
- Real Estate and Rental and Leasing: 12
EDDM carrier routes
78570 has 13 USPS carrier routes with 10,504 residential and 544 business mailboxes. Open the EDDM route map.
Carrier routes in 78570
78570 has 13 USPS carrier routes (5 city (C), 8 rural (R)) with 10,504 residential and 544 business mailboxes. Routes range from 479 homes (C005) to 1,060 homes (R003); the median route has 876 homes. The Census counted 9,161 households in 78570 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 1 |
| 500–749 | 4 |
| 750–999 | 6 |
| 1,000–1,499 | 2 |
| 1,500+ | 0 |
Best routes in 78570 for…
Highest income
For bigger-ticket offers: remodeling, pools, financial planning, private schools.
- Route R008 — Est. median household income $67,961, 671 homes
- Route C003 — Est. median household income $52,354, 683 homes
- Route C001 — Est. median household income $52,095, 795 homes
- Route R006 — Est. median household income $47,706, 1,043 homes
- Route R003 — Est. median household income $46,616, 1,060 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.
- Route R006 — Est. families with children under 18 62.9%, 1,043 homes
- Route R005 — Est. families with children under 18 56.8%, 883 homes
- Route R001 — Est. families with children under 18 53.9%, 948 homes
- Route R007 — Est. families with children under 18 51.5%, 925 homes
- Route C004 — Est. families with children under 18 48.6%, 593 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.
- Route R004 — Est. owner-occupied homes 88.6%, 939 homes
- Route R002 — Est. owner-occupied homes 88.3%, 876 homes
- Route R007 — Est. owner-occupied homes 87.4%, 925 homes
- Route R006 — Est. owner-occupied homes 86.9%, 1,043 homes
- Route R005 — Est. owner-occupied homes 82.5%, 883 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.
- Route C002 — Est. residents who moved in the past year 19.8%, 609 homes
- Route C005 — Est. residents who moved in the past year 12.7%, 479 homes
- Route C001 — Est. residents who moved in the past year 12.3%, 795 homes
- Route R003 — Est. residents who moved in the past year 9.6%, 1,060 homes
- Route C003 — Est. residents who moved in the past year 9.6%, 683 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.
- Route R002 — Est. homes built 2010 or later 28.1%, 876 homes
- Route R003 — Est. homes built 2010 or later 27.7%, 1,060 homes
- Route R001 — Est. homes built 2010 or later 27.5%, 948 homes
- Route R006 — Est. homes built 2010 or later 24.6%, 1,043 homes
- Route R005 — Est. homes built 2010 or later 24.4%, 883 homes
Select these 5 routes on the route map
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C005 — USPS business mailboxes 183, 479 homes
- Route R008 — USPS business mailboxes 170, 671 homes
- Route C004 — USPS business mailboxes 89, 593 homes
- Route C002 — USPS business mailboxes 28, 609 homes
- Route R007 — USPS business mailboxes 19, 925 homes
Select these 5 routes on the route map
Every carrier route in 78570
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 795 | 7 | $52,095 | 61.1% | 28.7% | 12.3% |
| C002 | City | 609 | 28 | $29,792 | 51.7% | 23.8% | 19.8% |
| C003 | City | 683 | 7 | $52,354 | 68.3% | 32.2% | 9.6% |
| C004 | City | 593 | 89 | $30,182 | 49.3% | 48.6% | 3.6% |
| C005 | City | 479 | 183 | $27,183 | 41.4% | 24.1% | 12.7% |
| R001 | Rural | 948 | 9 | $37,536 | 80.7% | 53.9% | 6.0% |
| R002 | Rural | 876 | 6 | $28,409 | 88.3% | 28.6% | 4.8% |
| R003 | Rural | 1,060 | 16 | $46,616 | 68.7% | 37.2% | 9.6% |
| R004 | Rural | 939 | 3 | $36,867 | 88.6% | 36.3% | 1.7% |
| R005 | Rural | 883 | 3 | $42,867 | 82.5% | 56.8% | 5.3% |
| R006 | Rural | 1,043 | 4 | $47,706 | 86.9% | 62.9% | 7.2% |
| R007 | Rural | 925 | 19 | $41,352 | 87.4% | 51.5% | 6.0% |
| R008 | Rural | 671 | 170 | $67,961 | 78.6% | 44.1% | 4.3% |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 78570 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
- 78559 — La Feria city, TX (5.6 mi)
- 78599 — Weslaco city, TX (5.7 mi)
- 78579 — Progreso city, TX (6.1 mi)
- 78596 — Weslaco city, TX (7.5 mi)
- 78562 — La Villa city, TX (7.9 mi)
- 78592 — Iglesia Antigua CDP, TX (8.5 mi)
- 78593 — Yznaga CDP, TX (9 mi)
- 78537 — Donna city, TX (9.1 mi)
Areas that include 78570
- Mercedes, TX ZIP codes — 1 ZIP code
- Mila Doce, TX ZIP codes — 2 ZIP codes
- Indian Hills, TX ZIP codes — 1 ZIP code
- Heidelberg, TX ZIP codes — 1 ZIP code
- Laguna Seca, TX ZIP codes — 3 ZIP codes
- Relampago, TX ZIP codes — 1 ZIP code
- Hidalgo County ZIP codes — 30 ZIP codes
- Texas ZIP code data
Where it ranks
Mail every home in 78570
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) 78570, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 78570 in?
- 78570 is a Mercedes, TX mailing address. By land area, 16% lies inside Mercedes, 3% lies inside Heidelberg, 3% lies inside Indian Hills and 2% lies inside Mila Doce; the rest is outside any Census-defined city or community.
- What county is 78570 in?
- 78570 is in Hidalgo County.
- What is the population of 78570?
- About 34,348 people (±2,381), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 32,950.
- What is the median household income in 78570?
- $41,965 (±$7,483), 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 78570?
- 13 USPS carrier routes with 10,504 residential and 544 business mailboxes (11,048 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 78570?
- The closest, measured center to center: 78559 (5.6 mi, La Feria), 78599 (5.7 mi, Weslaco), 78579 (6.1 mi, Progreso), 78596 (7.5 mi, Weslaco), 78562 (7.9 mi, La Villa) and 78592 (8.5 mi, Iglesia Antigua).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.