78570 ZIP Code — Mercedes, TX

Hidalgo County, Texas

ZIP code 78570 is located in Mercedes, Texas, within Hidalgo County. It covers approximately 75.20 square miles and serves a population of 35,043 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 956.

About ZIP code 78570

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $83,500. Owner-occupancy is high at 75%, well above the national average.

Median household income is $38,396. Poverty affects 35% of residents, above the national average. SNAP benefit usage at 38% of households reflects economic stress in the area.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 23 minutes is near the national average.

College attainment at 12% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of diabetes (19%) compared to national benchmarks. 30% of residents lack health insurance, above the national average.

Notable community characteristics include Spanish spoken in 32% of households.

Overall, ZIP code 78570 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, and elevated reliance on food assistance.

35,043

population

75.20

sq mi land

Standard

ZIP type

Central (CT)

timezone

78570 ZIP code map

Cities in ZIP code 78570

Below are the cities the US Postal Service accepts for ZIP code 78570. Using any city not on this list may result in mail delivery delays.

City	Status
Mercedes	Acceptable
Mercedes	Preferred

Nearby ZIP codes

78599 Weslaco (5.1 mi) 78596 Weslaco (6.1 mi) 78559 La Feria (6.4 mi) 78593 Santa Rosa (8.9 mi) 78552 Harlingen (9.5 mi) 78537 Donna (10.7 mi) 78538 Edcouch (12 mi) 78516 Alamo (13.2 mi) 78589 San Juan (15.3 mi) 78550 Harlingen (16.1 mi) 78586 San Benito (17.2 mi) 78539 Edinburg (17.3 mi)

Demographics updated 06/2026

Population
Total population	35,043
Population density	466 / sq mi
State FIPS	48
County FIPS	215

Geography
Land area	75.20 sq mi
Water area	1.09 sq mi
Latitude	26.1413
Longitude	-97.9113
Timezone	Central (CT)
Area code	956

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	62.7%	56.8%	39.5%
$50k – $100k	26.2%	26.0%	30.1%
$100k – $200k	9.8%	14.6%	22.6%
Over $200k	1.3%	2.5%	7.8%

Demographics & statistics

35,043

Population

466

People per sq mi

27.7

Median age

$38,396

Median household income

$15,830

Per capita income

$83,500

Median home value

$626

Median monthly rent

75.2%

Home ownership

34.5%

Poverty rate

11.6%

Unemployment

8,702

Housing units

12.4%

Bachelor's or higher

Age distribution

Male Female

1,236

Under 5

1,317

1,528

5–9

1,628

1,813

10–14

1,930

1,864

15–19

1,985

1,404

20–24

1,496

2,085

25–34

2,221

2,214

35–44

2,357

1,428

45–54

1,521

760

55–59

810

599

60–64

637

1,143

65–74

1,218

662

75–84

704

234

85+

249

← Male

Female →

Age summary

Group	Count	%
Under 18	11,668	33.3%
18 and over	23,375	66.7%
65 and over	4,210	12.0%
Median age	27.7 years

Race & ethnicity

White 34.7%

Hispanic or Latino 32.6%

Two or more races 24.5%

Other race 8.1%

Group	Count	%
White	18,034	34.7%
Hispanic or Latino	16,914	32.6%
Two or more races	12,751	24.5%
Other race	4,220	8.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	62.7%	56.8%	39.5%
$50k – $100k	26.2%	26.0%	30.1%
$100k – $200k	9.8%	14.6%	22.6%
Over $200k	1.3%	2.5%	7.8%

Under $10k 8.6%

$10k–$15k 10.4%

$15k–$25k 11.2%

$25k–$35k 15.5%

$35k–$50k 10.5%

$50k–$75k 19.0%

$75k–$100k 6.8%

$100k–$150k 12.7%

$150k–$200k 3.3%

$200k+ 2.0%

Range	% of households
Under $10k	8.6%
$10k–$15k	10.4%
$15k–$25k	11.2%
$25k–$35k	15.5%
$35k–$50k	10.5%
$50k–$75k	19.0%
$75k–$100k	6.8%
$100k–$150k	12.7%
$150k–$200k	3.3%
$200k+	2.0%
Median income	$38,396

Housing

Home values

Under $50k 23.2%

$50k–$100k 35.4%

$100k–$150k 23.4%

$150k–$200k 8.1%

$200k–$300k 7.1%

$300k–$500k 2.6%

$500k–$1M 0.1%

Housing overview

Metric	Value
Median home value	$83,500
Median rent / month	$626
Owner occupied	75.2%
Renter occupied	24.8%
Vacant	15.7%
Single-family detached	69.0%
Large apartment buildings	1.5%
Mobile homes	17.0%
Median rooms	4.9
Avg household size (owned)	3.84

Year built

Era	%
2020 or later	0.9%
2010–2019	12.9%
2000–2009	22.0%
1990–1999	16.5%
1980–1989	17.7%
1970–1979	11.3%
1960–1969	7.0%
1950–1959	5.3%
1940–1949	3.0%
1939 or earlier	3.5%

Bedrooms

Size	% of units
No bedroom (studio)	1.3%
1 bedroom	11.1%
2 bedrooms	30.0%
3 bedrooms	36.5%
4 bedrooms	18.4%
5+ bedrooms	2.6%

Vehicles per household

Vehicles	% of households
No vehicle	6.8%
1 vehicle	32.6%
2 vehicles	33.4%
3 or more	27.2%

Heating fuel

Fuel type	%
Utility gas	7.0%
Electricity	87.3%
Propane / LP gas	5.6%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	4,857	52.4%
Cohabiting couple	497	5.4%
Male householder, no spouse	933	10.1%
Female householder, no spouse	2,980	32.2%
Households with children under 18	4,450	48.0%
Households with seniors (65+)	3,087	33.3%
Average household size	3.78

Marital status

Status	Male	Female
Never married	42.8%	36.2%
Married	48.6%	42.7%
Separated	2.5%	6.0%
Widowed	1.9%	8.0%
Divorced	4.3%	7.1%

Education

Less than 9th grade 24.2%

Some HS, no diploma 14.8%

HS graduate 25.2%

Some college, no degree 18.6%

Associate's degree 4.8%

Bachelor's degree 7.5%

Graduate / professional 4.9%

Metric	%
HS diploma or higher	61.0%
Bachelor's or higher	12.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	664	5.6%
Kindergarten	448	3.8%
Elementary school	5,847	49.4%
High school	3,121	26.3%
College / grad school	1,765	14.9%

Employment

Industry of employment

Education & healthcare 28.7%

Retail trade 13.3%

Arts, food & hospitality 12.2%

Construction 8.7%

Professional & management 8.4%

Manufacturing 5.2%

Other services 4.6%

Agriculture & mining 4.3%

Public administration 4.3%

Transportation & utilities 4.1%

Finance & real estate 3.7%

Wholesale trade 1.3%

Information 1.2%

Occupation

Category	%
Management, business & arts	21.8%
Service	28.8%
Sales & office	24.5%
Natural resources & construction	13.4%
Production & transportation	11.6%

Employment type

Type	%
Private sector	76.6%
Government	13.2%
Self-employed	8.9%
Unpaid family workers	1.2%

Commute

Method	%
Drive alone	69.6%
Carpool	7.8%
Public transit	0.5%
Walk	2.7%
Work from home	11.2%
Other means	8.2%
Avg commute (minutes)	23.4

Poverty

All people 34.5%

Under 18 years 47.7%

18 and over 28.0%

Married-couple families 21.8%

Female-led households 36.8%

Income support

Source	% of households
Social Security	29.1%
Retirement income	17.0%
Supplemental Security	11.7%
Cash public assistance	1.4%
Food stamps / SNAP	38.0%

Health indicators

Condition	%
Obesity	43.7%
High blood pressure	35.2%
High cholesterol	32.1%
Diabetes	19.3%
Heart disease	7.2%
Stroke	3.6%
Asthma	9.3%
Arthritis	19.4%
Kidney disease	4.1%
Pulmonary disease	7.0%
Cancer	4.1%

Behavior / access	%
Smoking	19.7%
Binge drinking	17.3%
No physical activity	36.5%
Less than 7 hrs sleep	34.5%
Depression	21.6%
Fair or poor health	31.7%
Poor mental health	17.4%
Poor physical health	16.4%
No health insurance	54.0%
Visited doctor (checkup)	68.3%
Visited dentist	45.0%
Cholesterol screening	83.2%
Teeth loss	19.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	586	2.5%

Disability	%
Any disability	13.2%
Under 18	4.6%
18–64 years	11.1%
65 and over	47.0%

Health insurance coverage

Type	%
Private insurance	31.2%
Public insurance	43.7%
No insurance	30.1%
Uninsured under 19	10.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	32,490	92.7%
Spanish	10,324	31.8%
Other Indo-European	10,324	31.8%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	28,105	80.2%
Born in same state	27,800	79.3%
Born in different state	25,228	72.0%
Foreign born	305	0.9%
Naturalized citizen	6,938	19.8%
Not a US citizen	1,464	21.1%

Ancestry

Ancestry	Count	%
Arab	1,483	4.2%
French	537	1.5%
Italian	329	0.9%

Ancestry	Count	%
Polish	35	0.1%
English	27	0.1%
Dutch	7	0%

Technology access

Metric	% of households
Computer access	26.4%
Internet access	86.3%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 78570

What city is ZIP code 78570 in?

ZIP code 78570 is primarily assigned to Mercedes, Texas.

What county is ZIP code 78570 in?

ZIP code 78570 falls within Hidalgo County, Texas.

What is the poverty rate in ZIP code 78570?

35% of residents in ZIP code 78570 live below the poverty line, above the national average.

Is ZIP code 78570 family-oriented?

33% of residents in ZIP code 78570 are under 18, reflecting a younger, family-oriented community.

Is Spanish widely spoken in ZIP code 78570?

Approximately 32% of households in ZIP code 78570 speak Spanish as a primary language.

How educated is the population of ZIP code 78570?

12% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What timezone is ZIP code 78570 in?

ZIP code 78570 observes the CST timezone.