78592 ZIP Code — Santa Maria, TX

Cameron County, Texas

ZIP code 78592 is located in Santa Maria, Texas, within Cameron County. It covers approximately 3.46 square miles and serves a population of 587 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 956.

About ZIP code 78592

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $34,800. Owner-occupancy is high at 89%, well above the national average.

Median household income is $30,156. Poverty affects 35% of residents, above the national average. SNAP benefit usage at 46% of households reflects economic stress in the area. 52% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is service, with education and healthcare as the leading industry. The average commute of 26 minutes is near the national average.

Health indicators show elevated rates of diabetes (20%) compared to national benchmarks. 33% of residents lack health insurance, above the national average.

Notable community characteristics include Spanish spoken in 39% of households; and disability rates above the national average at 22%.

Overall, ZIP code 78592 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

587

population

3.46

sq mi land

Standard

ZIP type

Central (CT)

timezone

78592 ZIP code map

Cities in ZIP code 78592

Below are the cities the US Postal Service accepts for ZIP code 78592. Using any city not on this list may result in mail delivery delays.

City	Status
Santa Maria	Acceptable

Demographics updated 05/2026

Population
Total population	587
Population density	170 / sq mi
State FIPS	48
County FIPS	061

Geography
Land area	3.46 sq mi
Water area	0.14 sq mi
Latitude	26.0822
Longitude	-97.8385
Timezone	Central (CT)
Area code	956

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	78.9%	57.0%	39.5%
$50k – $100k	18.4%	28.1%	30.1%
$100k – $200k	2.7%	12.6%	22.6%
Over $200k	0.0%	2.3%	7.8%

Demographics & statistics

587

Population

170

People per sq mi

48.3

Median age

$30,156

Median household income

$14,120

Per capita income

$34,800

Median home value

Median monthly rent

88.6%

Home ownership

35.1%

Poverty rate

0.0%

Unemployment

169

Housing units

1.7%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	89	15.2%
18 and over	498	84.8%
65 and over	169	28.8%
Median age	48.3 years

Race & ethnicity

White 62.4%

Hispanic or Latino 18.8%

Two or more races 18.8%

Group	Count	%
White	451	62.4%
Hispanic or Latino	136	18.8%
Two or more races	136	18.8%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	78.9%	57.0%	39.5%
$50k – $100k	18.4%	28.1%	30.1%
$100k – $200k	2.7%	12.6%	22.6%
Over $200k	0.0%	2.3%	7.8%

Under $10k 6.0%

$10k–$15k 19.3%

$15k–$25k 24.1%

$25k–$35k 16.3%

$35k–$50k 2.4%

$50k–$75k 10.8%

$75k–$100k 9.0%

$100k–$150k 12.0%

Range	% of households
Under $10k	6.0%
$10k–$15k	19.3%
$15k–$25k	24.1%
$25k–$35k	16.3%
$35k–$50k	2.4%
$50k–$75k	10.8%
$75k–$100k	9.0%
$100k–$150k	12.0%
Median income	$30,156

Housing

Home values

Under $50k 70.1%

$50k–$100k 12.9%

$150k–$200k 17.0%

Housing overview

Metric	Value
Median home value	$34,800
Median rent / month	$0
Owner occupied	88.6%
Renter occupied	11.4%
Vacant	11.7%
Single-family detached	97.9%
Large apartment buildings	0.0%
Mobile homes	2.1%
Median rooms	5.0
Avg household size (owned)	3.49

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	6.9%
1990–1999	20.7%
1980–1989	17.6%
1970–1979	9.6%
1960–1969	16.0%
1950–1959	8.5%
1940–1949	11.2%
1939 or earlier	9.6%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	13.3%
3 bedrooms	81.9%
4 bedrooms	2.1%
5+ bedrooms	2.7%

Vehicles per household

Vehicles	% of households
No vehicle	12.0%
1 vehicle	51.2%
2 vehicles	4.8%
3 or more	31.9%

Heating fuel

Fuel type	%
Utility gas	3.0%
Electricity	94.0%
Propane / LP gas	3.0%

Households & families

Household type	Count	%
Married-couple family	102	61.4%
Cohabiting couple	0	0.0%
Male householder, no spouse	21	12.7%
Female householder, no spouse	43	25.9%
Households with children under 18	23	13.9%
Households with seniors (65+)	103	62.0%
Average household size	3.54

Marital status

Status	Male	Female
Never married	30.0%	35.2%
Married	58.1%	46.0%
Separated	4.1%	3.2%
Widowed	0.0%	8.0%
Divorced	7.9%	7.6%

Education

Less than 9th grade 43.7%

Some HS, no diploma 18.5%

HS graduate 23.9%

Some college, no degree 12.2%

Associate's degree 0.0%

Bachelor's degree 1.7%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	37.8%
Bachelor's or higher	1.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	13	12.7%
Kindergarten	10	9.8%
Elementary school	26	25.5%
High school	29	28.4%
College / grad school	24	23.5%

Employment

Industry of employment

Education & healthcare 40.3%

Retail trade 33.7%

Arts, food & hospitality 15.3%

Transportation & utilities 5.6%

Agriculture & mining 5.1%

Occupation

Category	%
Management, business & arts	18.4%
Service	30.6%
Sales & office	29.6%
Natural resources & construction	15.8%
Production & transportation	5.6%

Employment type

Type	%
Private sector	84.2%
Government	15.8%
Self-employed	0.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	97.4%
Carpool	0.0%
Public transit	0.0%
Walk	0.0%
Work from home	0.0%
Other means	2.6%
Avg commute (minutes)	25.9

Poverty

All people 35.1%

Under 18 years 40.4%

18 and over 34.1%

Married-couple families 37.3%

Female-led households 36.4%

Income support

Source	% of households
Social Security	51.8%
Retirement income	27.1%
Supplemental Security	14.5%
Cash public assistance	0.0%
Food stamps / SNAP	45.8%

Health indicators

Condition	%
Obesity	43.5%
High blood pressure	35.4%
High cholesterol	36.0%
Diabetes	19.7%
Heart disease	7.6%
Stroke	3.9%
Asthma	8.7%
Arthritis	19.7%
Kidney disease	4.3%
Pulmonary disease	6.5%
Cancer	4.4%

Behavior / access	%
Smoking	18.4%
Binge drinking	15.4%
No physical activity	37.7%
Less than 7 hrs sleep	32.9%
Depression	20.0%
Fair or poor health	33.1%
Poor mental health	16.6%
Poor physical health	17.1%
No health insurance	54.5%
Visited doctor (checkup)	70.3%
Visited dentist	42.4%
Cholesterol screening	85.6%
Teeth loss	18.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	12	2.4%

Disability	%
Any disability	22.3%
Under 18	0.0%
18–64 years	17.0%
65 and over	44.4%

Health insurance coverage

Type	%
Private insurance	18.2%
Public insurance	48.7%
No insurance	33.0%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	553	94.2%
Spanish	214	38.7%
Other Indo-European	214	38.7%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	410	69.8%
Born in same state	410	69.8%
Born in different state	313	53.3%
Foreign born	0	0.0%
Naturalized citizen	177	30.2%
Not a US citizen	58	32.8%

Technology access

Metric	% of households
Computer access	28.3%
Internet access	44.0%

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

Frequently asked questions about ZIP code 78592

What city is ZIP code 78592 in?

ZIP code 78592 is primarily assigned to Santa Maria, Texas.

What county is ZIP code 78592 in?

ZIP code 78592 falls within Cameron County, Texas.

Is Spanish widely spoken in ZIP code 78592?

Approximately 39% of households in ZIP code 78592 speak Spanish as a primary language.

What is the poverty rate in ZIP code 78592?

35% of residents in ZIP code 78592 live below the poverty line, above the national average.

Does ZIP code 78592 have an older population?

29% of residents in ZIP code 78592 are 65 or older, above the national average of ~17%.

Does ZIP code 78592 have a large retiree population?

52% of households in ZIP code 78592 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 78592 in?

ZIP code 78592 observes the CST timezone.