Sinton ZIP Code List — San Patricio County, TX

There is one unique ZIP code in Sinton, Texas and it is 78387. Area code: 361.

ZIP codes

172.16

sq mi land

0.42

sq mi water

361

area code

Sinton, TX ZIP code map

About Sinton, TX

Sinton, Texas, is a small city located in San Patricio County, known for its friendly community and rich cultural heritage. As the county seat, it serves as a hub for local governance and activities. The city combines a rural atmosphere with the amenities of a vibrant community, making it an appealing place to live and visit.

Location & geography

Sinton is situated in South Texas, approximately 27 miles northwest of Corpus Christi and 22 miles east of George West. The city spans a land area of 172.16 square miles, with a minor water area of 0.42 square miles. The terrain is predominantly flat, characterized by agricultural fields and small creeks.

Community & economy

The character of Sinton is shaped by its warm and welcoming residents who take pride in their small-town lifestyle. The economy of Sinton is supported by agriculture, with industries such as farming and ranching being vital to daily life. Residents enjoy local markets, community events, and close-knit gatherings that reflect the city's strong sense of community.

Transportation

Sinton is accessible via major highways, including U.S. Route 77, which connects it to other key areas in South Texas. The nearest significant airport is the Corpus Christi International Airport, located about 28 miles away, providing regional air travel options. Local transportation options may include personal vehicles and public transit services that connect to nearby towns.

History

Founded in the late 19th century, Sinton has a rich history marked by agricultural development and growth, following the arrival of the railroad which spurred economic activity. The city was originally established as a trading post and has since evolved, maintaining its agricultural roots while also diversifying into other sectors. Significant events in its history have included community celebrations that showcase its cultural heritage.

Did you know?

An interesting fact about Sinton is that it plays host to the annual San Patricio Fair, which attracts visitors from surrounding areas. Additionally, Sinton is known for its proximity to the beautiful landscapes and outdoor activities available in nearby coastal regions.

ZIP codes for Sinton, TX (1)

ZIP code	City	County	Map
78387	Sinton	San Patricio	View map

Demographics & statistics

9,148

Population

35.9

Median age

$47,951

Median household income

$23,313

Per capita income

$103,900

Median home value

$572

Median monthly rent

66.5%

Home ownership

29.4%

Poverty rate

6.4%

Unemployment

2,694

Housing units

11.5%

Bachelor's or higher

Age distribution

Male Female

362

Under 5

367

372

5–9

376

362

10–14

366

265

15–19

268

310

20–24

313

508

25–34

514

630

35–44

637

540

45–54

547

360

55–59

365

187

60–64

190

339

65–74

343

269

75–84

271

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	2,379	26.0%
18 and over	6,769	74.0%
65 and over	1,309	14.3%
Median age	35.9 years

Race & ethnicity

White 50.3%

Hispanic or Latino 23.9%

Two or more races 19.1%

Other race 5.4%

Black or African American 1.1%

Asian 0.2%

American Indian / Alaska Native 0.2%

Group	Count	%
White	6,038	50.3%
Hispanic or Latino	2,867	23.9%
Two or more races	2,291	19.1%
Other race	644	5.4%
Black or African American	132	1.1%
Asian	24	0.2%
American Indian / Alaska Native	19	0.2%

Household income

Under $10k 13.9%

$10k–$15k 11.1%

$15k–$25k 7.8%

$25k–$35k 7.1%

$35k–$50k 12.8%

$50k–$75k 13.5%

$75k–$100k 10.9%

$100k–$150k 13.4%

$150k–$200k 5.1%

$200k+ 4.3%

Range	% of households
Under $10k	13.9%
$10k–$15k	11.1%
$15k–$25k	7.8%
$25k–$35k	7.1%
$35k–$50k	12.8%
$50k–$75k	13.5%
$75k–$100k	10.9%
$100k–$150k	13.4%
$150k–$200k	5.1%
$200k+	4.3%
Median income	$47,951

Housing

Home values

Under $50k 26.3%

$50k–$100k 21.9%

$100k–$150k 16.7%

$150k–$200k 10.0%

$200k–$300k 11.2%

$300k–$500k 13.2%

$500k–$1M 0.7%

Housing overview

Metric	Value
Median home value	$103,900
Median rent / month	$572
Owner occupied	66.5%
Renter occupied	33.5%
Vacant	19.4%
Single-family detached	65.9%
Large apartment buildings	0.9%
Mobile homes	18.0%
Median rooms	5.1
Avg household size (owned)	3.23

Year built

Era	%
2020 or later	0.0%
2010–2019	6.7%
2000–2009	13.3%
1990–1999	8.3%
1980–1989	14.2%
1970–1979	16.5%
1960–1969	7.6%
1950–1959	15.6%
1940–1949	13.4%
1939 or earlier	4.5%

Bedrooms

Size	% of units
No bedroom (studio)	0.2%
1 bedroom	12.2%
2 bedrooms	29.2%
3 bedrooms	43.4%
4 bedrooms	14.7%
5+ bedrooms	0.4%

Vehicles per household

Vehicles	% of households
No vehicle	7.4%
1 vehicle	34.5%
2 vehicles	36.5%
3 or more	21.6%

Heating fuel

Fuel type	%
Utility gas	20.5%
Electricity	73.5%
Propane / LP gas	5.9%

Households & families

Household type	Count	%
Married-couple family	1,340	45.0%
Cohabiting couple	197	6.6%
Male householder, no spouse	322	10.8%
Female householder, no spouse	1,116	37.5%
Households with children under 18	1,258	42.3%
Households with seniors (65+)	975	32.8%
Average household size	2.98

Marital status

Status	Male	Female
Never married	42.0%	36.3%
Married	44.9%	43.6%
Separated	3.3%	1.7%
Widowed	1.1%	8.8%
Divorced	8.7%	9.7%

Education

Less than 9th grade 11.4%

Some HS, no diploma 10.5%

HS graduate 36.0%

Some college, no degree 20.2%

Associate's degree 10.4%

Bachelor's degree 5.3%

Graduate / professional 6.3%

Metric	%
HS diploma or higher	78.1%
Bachelor's or higher	11.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	219	9.2%
Kindergarten	108	4.5%
Elementary school	1,205	50.8%
High school	409	17.2%
College / grad school	433	18.2%

Employment

Industry of employment

Education & healthcare 19.9%

Construction 15.4%

Retail trade 12.7%

Arts, food & hospitality 11.5%

Agriculture & mining 10.4%

Transportation & utilities 9.1%

Manufacturing 7.8%

Public administration 4.5%

Other services 3.4%

Professional & management 3.0%

Wholesale trade 1.6%

Finance & real estate 0.8%

Occupation

Category	%
Management, business & arts	23.0%
Service	20.5%
Sales & office	14.1%
Natural resources & construction	21.1%
Production & transportation	21.4%

Employment type

Type	%
Private sector	83.7%
Government	11.3%
Self-employed	5.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	84.4%
Carpool	8.3%
Public transit	0.1%
Walk	1.0%
Other means	1.2%
Avg commute (minutes)	26.6

Poverty

All people 29.4%

Under 18 years 34.8%

18 and over 27.5%

Married-couple families 13.9%

Female-led households 41.6%

Income support

Source	% of households
Social Security	33.0%
Retirement income	21.9%
Supplemental Security	9.9%
Cash public assistance	2.0%
Food stamps / SNAP	28.9%

Health indicators

Condition	%
High blood pressure	38.7%
High cholesterol	36.1%
Heart disease	7.9%
Stroke	3.9%
Asthma	9.7%
Arthritis	24.8%
Kidney disease	4.0%
Pulmonary disease	8.2%
Cancer	5.5%

Behavior / access	%
Binge drinking	15.5%
No physical activity	40.2%
Less than 7 hrs sleep	36.1%
Fair or poor health	28.3%
Poor mental health	16.7%
Poor physical health	16.1%
No health insurance	42.0%
Visited doctor (checkup)	70.4%
Visited dentist	36.9%
Cholesterol screening	86.6%
Teeth loss	20.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	367	5.4%

Disability	%
Any disability	19.4%
Under 18	1.5%
18–64 years	15.9%
65 and over	66.6%

Health insurance coverage

Type	%
Private insurance	47.9%
Public insurance	43.2%
Uninsured under 19	2.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	8,419	92.0%
Spanish	640	7.6%
Other Indo-European	640	7.6%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	8,656	94.6%
Born in same state	8,632	94.4%
Born in different state	7,783	85.1%
Foreign born	24	0.3%
Naturalized citizen	492	5.4%
Not a US citizen	96	19.5%

Ancestry

Ancestry	Count	%
French	532	5.8%
Italian	188	2.1%
Arab	103	1.1%

Ancestry	Count	%
English	17	0.2%
Polish	3	0%

Technology access

Metric	% of households
Computer access	32.5%
Internet access	83.6%

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

Frequently asked questions

What is the ZIP code for Sinton, TX?

Sinton, TX has one ZIP code: 78387.

What is the main ZIP code for Sinton, TX?

The primary ZIP code for Sinton, TX is 78387. The city uses area code 361 for phone service.

What county is Sinton, TX in?

Sinton is located in San Patricio County, Texas.

How many ZIP codes are in Sinton, TX?

Sinton, TX has 1 ZIP code.

What is the ZIP code for downtown Sinton and the surrounding central business district?

Downtown Sinton and the central business district are located in ZIP code 78387, which covers the main commercial area of this San Patricio County city.

What ZIP code should I use for mailing addresses to businesses and residences in Sinton, TX?

All mailing addresses in Sinton, Texas use the single ZIP code 78387, as this is the only ZIP code designated for the city.