78536 ZIP Code — Delmita, TX

Starr County, Texas

ZIP code 78536 is located in Delmita, Texas, within Starr County. It covers approximately 43.69 square miles and serves a population of 404 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 956.

About ZIP code 78536

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Median home value is $123,400. Owner-occupancy is high at 85%, well above the national average.

Median household income is $41,136. Poverty affects 31% of residents, above the national average. 43% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 22 minutes is near the national average.

College attainment at 10% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of diabetes (18%) compared to national benchmarks. 23% of residents lack health insurance, above the national average.

Notable community characteristics include Spanish spoken in 28% of households.

Overall, ZIP code 78536 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, high homeownership, and a significant Social Security-dependent population.

404

population

43.69

sq mi land

Standard

ZIP type

Central (CT)

timezone

78536 ZIP code map

Cities in ZIP code 78536

Below are the cities the US Postal Service accepts for ZIP code 78536. Using any city not on this list may result in mail delivery delays.

City	Status
Delmita	Acceptable
Delmita	Preferred

Nearby ZIP codes

78588 San Isidro (5.2 mi) 78591 Santa Elena (8.4 mi) 78563 Linn (12.5 mi) 78582 Rio Grande City (19.6 mi)

Demographics updated 05/2026

Population
Total population	404
Population density	9 / sq mi
State FIPS	48
County FIPS	427

Geography
Land area	43.69 sq mi
Water area	0.00 sq mi
Latitude	26.6565
Longitude	-98.4027
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	46.8%	70.3%	39.5%
$50k – $100k	42.1%	18.5%	30.1%
$100k – $200k	2.4%	9.1%	22.6%
Over $200k	8.7%	2.2%	7.8%

Demographics & statistics

404

Population

People per sq mi

37.5

Median age

$41,136

Median household income

$17,826

Per capita income

$123,400

Median home value

Median monthly rent

85.3%

Home ownership

31.2%

Poverty rate

13.5%

Unemployment

162

Housing units

9.5%

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	100	24.8%
18 and over	304	75.2%
65 and over	41	10.1%
Median age	37.5 years

Race & ethnicity

White 51.6%

Hispanic or Latino 24.2%

Two or more races 23.5%

Other race 0.8%

Group	Count	%
White	275	51.6%
Hispanic or Latino	129	24.2%
Two or more races	125	23.5%
Other race	4	0.8%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	46.8%	70.3%	39.5%
$50k – $100k	42.1%	18.5%	30.1%
$100k – $200k	2.4%	9.1%	22.6%
Over $200k	8.7%	2.2%	7.8%

Under $10k 5.9%

$15k–$25k 21.3%

$25k–$35k 11.8%

$35k–$50k 30.1%

$50k–$75k 8.1%

$75k–$100k 8.1%

$100k–$150k 12.5%

$200k+ 2.2%

Range	% of households
Under $10k	5.9%
$15k–$25k	21.3%
$25k–$35k	11.8%
$35k–$50k	30.1%
$50k–$75k	8.1%
$75k–$100k	8.1%
$100k–$150k	12.5%
$200k+	2.2%
Median income	$41,136

Housing

Home values

Under $50k 22.4%

$50k–$100k 14.7%

$100k–$150k 42.2%

$150k–$200k 2.6%

$200k–$300k 10.3%

$300k–$500k 6.0%

$500k–$1M 1.7%

Housing overview

Metric	Value
Median home value	$123,400
Median rent / month	$0
Owner occupied	85.3%
Renter occupied	14.7%
Vacant	25.3%
Single-family detached	83.5%
Large apartment buildings	0.0%
Mobile homes	16.5%
Median rooms	4.4
Avg household size (owned)	2.82

Year built

Era	%
2020 or later	0.0%
2010–2019	13.2%
2000–2009	31.9%
1990–1999	7.1%
1980–1989	16.5%
1970–1979	24.2%
1960–1969	2.2%
1950–1959	2.2%
1940–1949	0.0%
1939 or earlier	2.7%

Bedrooms

Size	% of units
No bedroom (studio)	21.4%
1 bedroom	7.1%
2 bedrooms	26.4%
3 bedrooms	42.3%
4 bedrooms	0.0%
5+ bedrooms	2.7%

Vehicles per household

Vehicles	% of households
No vehicle	5.9%
1 vehicle	16.9%
2 vehicles	59.6%
3 or more	17.6%

Heating fuel

Fuel type	%
Electricity	86.8%
Propane / LP gas	2.9%
Wood	10.3%

Households & families

Household type	Count	%
Married-couple family	93	68.4%
Cohabiting couple	0	0.0%
Male householder, no spouse	0	0.0%
Female householder, no spouse	43	31.6%
Households with children under 18	68	50.0%
Households with seniors (65+)	25	18.4%
Average household size	2.97

Marital status

Status	Male	Female
Never married	30.7%	23.7%
Married	69.3%	53.8%
Separated	0.0%	3.2%
Widowed	0.0%	13.5%
Divorced	0.0%	5.8%

Education

Less than 9th grade 11.3%

Some HS, no diploma 12.7%

HS graduate 43.0%

Some college, no degree 20.4%

Associate's degree 3.2%

Bachelor's degree 7.0%

Graduate / professional 2.5%

Metric	%
HS diploma or higher	76.1%
Bachelor's or higher	9.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	14	11.8%
Kindergarten	4	3.4%
Elementary school	33	27.7%
High school	44	37.0%
College / grad school	24	20.2%

Employment

Industry of employment

Education & healthcare 30.6%

Arts, food & hospitality 20.0%

Agriculture & mining 18.1%

Retail trade 18.1%

Wholesale trade 3.8%

Manufacturing 3.1%

Other services 2.5%

Construction 1.9%

Public administration 1.9%

Occupation

Category	%
Management, business & arts	46.9%
Service	9.4%
Sales & office	10.6%
Natural resources & construction	7.5%
Production & transportation	25.6%

Employment type

Type	%
Private sector	60.0%
Government	16.3%
Self-employed	23.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	77.5%
Carpool	2.5%
Public transit	0.0%
Walk	20.0%
Work from home	0.0%
Other means	0.0%
Avg commute (minutes)	22.4

Poverty

All people 31.2%

Under 18 years 29.0%

18 and over 31.9%

Married-couple families 25.8%

Female-led households 58.3%

Income support

Source	% of households
Social Security	42.6%
Retirement income	38.2%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	2.2%

Health indicators

Condition	%
Obesity	40.2%
High blood pressure	37.3%
High cholesterol	36.9%
Diabetes	18.4%
Heart disease	7.8%
Stroke	3.4%
Asthma	8.3%
Arthritis	22.8%
Kidney disease	4.0%
Pulmonary disease	5.8%
Cancer	5.4%

Behavior / access	%
Smoking	15.1%
Binge drinking	15.8%
No physical activity	34.0%
Less than 7 hrs sleep	33.5%
Depression	18.0%
Fair or poor health	25.0%
Poor mental health	13.9%
Poor physical health	13.6%
No health insurance	42.0%
Visited doctor (checkup)	72.5%
Visited dentist	49.4%
Cholesterol screening	89.3%
Teeth loss	14.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	13	4.3%

Disability	%
Any disability	16.1%
Under 18	3.0%
18–64 years	15.6%
65 and over	51.2%

Health insurance coverage

Type	%
Private insurance	40.8%
Public insurance	44.1%
No insurance	22.8%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	399	98.8%
Spanish	110	27.6%
Other Indo-European	110	27.6%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	341	84.4%
Born in same state	341	84.4%
Born in different state	305	75.5%
Foreign born	0	0.0%
Naturalized citizen	63	15.6%
Not a US citizen	21	33.3%

Ancestry

Ancestry	Count	%
Arab	68	16.8%

Technology access

Metric	% of households
Computer access	33.7%
Internet access	96.3%

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

Frequently asked questions about ZIP code 78536

What city is ZIP code 78536 in?

ZIP code 78536 is primarily assigned to Delmita, Texas.

What county is ZIP code 78536 in?

ZIP code 78536 falls within Starr County, Texas.

What is the poverty rate in ZIP code 78536?

31% of residents in ZIP code 78536 live below the poverty line, above the national average.

Is Spanish widely spoken in ZIP code 78536?

Approximately 28% of households in ZIP code 78536 speak Spanish as a primary language.

How educated is the population of ZIP code 78536?

10% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

Is ZIP code 78536 mostly owner-occupied?

85% of occupied units in ZIP code 78536 are owner-occupied, well above the national average.

What timezone is ZIP code 78536 in?

ZIP code 78536 observes the CST timezone.