77991 ZIP Code — Vanderbilt, TX

Jackson County, Texas

ZIP code 77991 is located in Vanderbilt, Texas, within Jackson County. It covers approximately 10.64 square miles and serves a population of 526 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 361.

About ZIP code 77991

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1970s, giving the area an established character.

Median household income is $119,531.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. An above-average commute of 55 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 31% of residents holding a bachelor's degree or higher.

526

population

10.64

sq mi land

Standard

ZIP type

Central (CT)

timezone

77991 ZIP code map

Cities in ZIP code 77991

Below are the cities the US Postal Service accepts for ZIP code 77991. Using any city not on this list may result in mail delivery delays.

City	Status
Vanderbilt	Acceptable

Demographics updated 05/2026

Population
Total population	526
Population density	49 / sq mi
State FIPS	48
County FIPS	239

Geography
Land area	10.64 sq mi
Water area	1.26 sq mi
Latitude	28.8068
Longitude	-96.6042
Timezone	Central (CT)
Area code	361

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	6.0%	43.0%	39.5%
$50k – $100k	11.0%	32.5%	30.1%
$100k – $200k	83.0%	22.5%	22.6%
Over $200k	0.0%	1.9%	7.8%

Demographics & statistics

526

Population

People per sq mi

18.4

Median age

$119,531

Median household income

$25,547

Per capita income

Median home value

Median monthly rent

100.0%

Home ownership

0.0%

Poverty rate

21.1%

Unemployment

163

Housing units

31.0%

Bachelor's or higher

Age distribution

Male Female

5–9

116

10–14

113

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

← Male

Female →

Age summary

Group	Count	%
Under 18	259	49.2%
18 and over	267	50.8%
65 and over	23	4.4%
Median age	18.4 years

Race & ethnicity

Hispanic or Latino 37.4%

Two or more races 34.2%

White 23.9%

Other race 3.2%

Asian 1.3%

Group	Count	%
Hispanic or Latino	314	37.4%
Two or more races	287	34.2%
White	201	23.9%
Other race	27	3.2%
Asian	11	1.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	6.0%	43.0%	39.5%
$50k – $100k	11.0%	32.5%	30.1%
$100k – $200k	83.0%	22.5%	22.6%
Over $200k	0.0%	1.9%	7.8%

$35k–$50k 6.1%

$50k–$75k 6.1%

$75k–$100k 11.2%

$100k–$150k 32.7%

$150k–$200k 43.9%

Range	% of households
$35k–$50k	6.1%
$50k–$75k	6.1%
$75k–$100k	11.2%
$100k–$150k	32.7%
$150k–$200k	43.9%
Median income	$119,531

Housing

Home values

Under $50k 22.4%

$100k–$150k 32.7%

$150k–$200k 6.1%

$200k–$300k 6.1%

$300k–$500k 32.7%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	100.0%
Renter occupied	0.0%
Vacant	39.9%
Single-family detached	63.8%
Large apartment buildings	0.0%
Mobile homes	28.8%
Median rooms	7.6
Avg household size (owned)	5.37

Year built

Era	%
2020 or later	0.0%
2010–2019	0.0%
2000–2009	35.0%
1990–1999	6.7%
1980–1989	14.1%
1970–1979	36.2%
1960–1969	8.0%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	14.1%
3 bedrooms	49.7%
4 bedrooms	0.0%
5+ bedrooms	36.2%

Vehicles per household

Vehicles	% of households
No vehicle	12.2%
1 vehicle	0.0%
2 vehicles	65.3%
3 or more	22.4%

Heating fuel

Fuel type	%
Utility gas	11.2%
Electricity	88.8%

Households & families

Household type	Count	%
Married-couple family	86	87.8%
Cohabiting couple	0	0.0%
Male householder, no spouse	0	0.0%
Female householder, no spouse	12	12.2%
Households with children under 18	64	65.3%
Households with seniors (65+)	23	23.5%
Average household size	5.37

Marital status

Status	Male	Female
Never married	20.8%	36.1%
Married	79.2%	56.6%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	0.0%	7.2%

Education

Less than 9th grade 14.2%

Some HS, no diploma 0.0%

HS graduate 18.5%

Some college, no degree 11.2%

Associate's degree 25.0%

Bachelor's degree 31.0%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	85.8%
Bachelor's or higher	31.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	30	11.1%
Kindergarten	0	0.0%
Elementary school	229	84.8%
High school	11	4.1%
College / grad school	0	0.0%

Employment

Industry of employment

Education & healthcare 58.7%

Transportation & utilities 17.9%

Agriculture & mining 14.5%

Finance & real estate 5.6%

Professional & management 3.4%

Occupation

Category	%
Management, business & arts	73.2%
Service	3.4%
Sales & office	0.0%
Natural resources & construction	0.0%
Production & transportation	23.5%

Employment type

Type	%
Private sector	93.3%
Government	3.4%
Self-employed	3.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	96.6%
Carpool	0.0%
Public transit	0.0%
Walk	3.4%
Work from home	0.0%
Other means	0.0%
Avg commute (minutes)	55.4

Poverty

All people 0.0%

Under 18 years 0.0%

18 and over 0.0%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	23.5%
Retirement income	11.2%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	12.2%

Health indicators

Condition	%
Obesity	35.5%
High blood pressure	31.2%
High cholesterol	31.6%
Diabetes	10.0%
Heart disease	5.1%
Stroke	2.3%
Asthma	8.8%
Arthritis	18.3%
Kidney disease	2.4%
Pulmonary disease	5.3%
Cancer	4.6%

Behavior / access	%
Smoking	18.5%
Binge drinking	20.7%
No physical activity	25.0%
Less than 7 hrs sleep	35.4%
Depression	21.8%
Fair or poor health	15.5%
Poor mental health	15.7%
Poor physical health	10.2%
No health insurance	29.6%
Visited doctor (checkup)	68.2%
Visited dentist	55.6%
Cholesterol screening	87.5%
Teeth loss	13.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	0	0.0%

Disability	%
Any disability	1.9%
Under 18	0.0%
18–64 years	4.1%
65 and over	0.0%

Health insurance coverage

Type	%
Private insurance	87.1%
Public insurance	6.3%
No insurance	8.7%
Uninsured under 19	4.1%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	526	100.0%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	515	97.9%
Born in same state	515	97.9%
Born in different state	493	93.7%
Foreign born	0	0.0%
Naturalized citizen	11	2.1%
Not a US citizen	11	100.0%

Technology access

Metric	% of households
Computer access	18.6%
Internet access	87.8%

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

Frequently asked questions about ZIP code 77991

What city is ZIP code 77991 in?

ZIP code 77991 is primarily assigned to Vanderbilt, Texas.

What county is ZIP code 77991 in?

ZIP code 77991 falls within Jackson County, Texas.

Is ZIP code 77991 family-oriented?

49% of residents in ZIP code 77991 are under 18, reflecting a younger, family-oriented community.

What is the median household income in ZIP code 77991?

The median household income in ZIP code 77991 is $119,531, above the national median of ~$75,000.

What is the population of ZIP code 77991?

ZIP code 77991 has an estimated population of 526 residents, with a density of 49 people per square mile.

What timezone is ZIP code 77991 in?

ZIP code 77991 observes the CST timezone.