77837 ZIP Code — Calvert, TX

Robertson County, Texas

ZIP code 77837 is located in Calvert, Texas, within Robertson County. It covers approximately 117.84 square miles and serves a population of 1,439 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 979.

About ZIP code 77837

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1980s, giving the area an established character. Median home value is $111,600. Owner-occupancy sits near the national average at 67%.

Median household income is $53,523. The poverty rate of 6% is below the national average. SNAP benefit usage at 25% of households reflects economic stress in the area. 46% 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. An above-average commute of 37 minutes suggests many residents work outside the immediate area.

Educational attainment is near the national average, with 27% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of diabetes (18%), smoking (23%) compared to national benchmarks.

Overall, ZIP code 77837 reflects a community defined by a significant Social Security-dependent population and elevated reliance on food assistance.

1,439

population

117.84

sq mi land

Standard

ZIP type

Central (CT)

timezone

77837 ZIP code map

Cities in ZIP code 77837

Below are the cities the US Postal Service accepts for ZIP code 77837. Using any city not on this list may result in mail delivery delays.

City	Status
Calvert	Preferred

Nearby ZIP codes

76629 Bremond (7.9 mi) 77859 Hearne (12.9 mi) 76519 Burlington (15.1 mi) 77856 Franklin (15.4 mi) 76680 Reagan (17.5 mi) 76570 Rosebud (19.5 mi) 76520 Cameron (19.9 mi)

Demographics updated 05/2026

Population
Total population	1,439
Population density	12 / sq mi
State FIPS	48
County FIPS	395

Geography
Land area	117.84 sq mi
Water area	1.23 sq mi
Latitude	31.0106
Longitude	-96.6656
Timezone	Central (CT)
Area code	979

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	48.3%	49.0%	39.5%
$50k – $100k	41.0%	29.7%	30.1%
$100k – $200k	10.7%	17.5%	22.6%
Over $200k	0.0%	3.8%	7.8%

Demographics & statistics

1,439

Population

People per sq mi

47.2

Median age

$53,523

Median household income

$28,295

Per capita income

$111,600

Median home value

$854

Median monthly rent

66.9%

Home ownership

6.3%

Poverty rate

7.9%

Unemployment

661

Housing units

26.8%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

106

45–54

55–59

60–64

106

65–74

129

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	340	23.6%
18 and over	1,099	76.4%
65 and over	386	26.8%
Median age	47.2 years

Race & ethnicity

White 49.5%

Black or African American 43.9%

Hispanic or Latino 2%

Asian 1.7%

Two or more races 1.7%

Other race 0.7%

American Indian / Alaska Native 0.6%

Group	Count	%
White	726	49.5%
Black or African American	644	43.9%
Hispanic or Latino	29	2%
Asian	25	1.7%
Two or more races	25	1.7%
Other race	10	0.7%
American Indian / Alaska Native	9	0.6%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	48.3%	49.0%	39.5%
$50k – $100k	41.0%	29.7%	30.1%
$100k – $200k	10.7%	17.5%	22.6%
Over $200k	0.0%	3.8%	7.8%

Under $10k 6.8%

$10k–$15k 3.1%

$15k–$25k 8.5%

$25k–$35k 12.1%

$35k–$50k 16.1%

$50k–$75k 12.6%

$75k–$100k 19.4%

$100k–$150k 16.3%

$150k–$200k 2.5%

$200k+ 2.7%

Range	% of households
Under $10k	6.8%
$10k–$15k	3.1%
$15k–$25k	8.5%
$25k–$35k	12.1%
$35k–$50k	16.1%
$50k–$75k	12.6%
$75k–$100k	19.4%
$100k–$150k	16.3%
$150k–$200k	2.5%
$200k+	2.7%
Median income	$53,523

Housing

Home values

Under $50k 16.5%

$50k–$100k 27.2%

$100k–$150k 18.3%

$150k–$200k 2.8%

$200k–$300k 16.2%

$300k–$500k 17.0%

$1M+ 2.0%

Housing overview

Metric	Value
Median home value	$111,600
Median rent / month	$854
Owner occupied	66.9%
Renter occupied	33.1%
Vacant	31.2%
Single-family detached	72.2%
Large apartment buildings	0.5%
Mobile homes	23.7%
Median rooms	5.3
Avg household size (owned)	2.41

Year built

Era	%
2020 or later	0.5%
2010–2019	10.4%
2000–2009	3.9%
1990–1999	8.9%
1980–1989	21.4%
1970–1979	12.9%
1960–1969	15.2%
1950–1959	8.3%
1940–1949	6.3%
1939 or earlier	12.4%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	6.1%
2 bedrooms	25.6%
3 bedrooms	54.6%
4 bedrooms	11.0%
5+ bedrooms	0.8%

Vehicles per household

Vehicles	% of households
No vehicle	6.5%
1 vehicle	38.9%
2 vehicles	36.3%
3 or more	18.3%

Heating fuel

Fuel type	%
Utility gas	24.6%
Electricity	65.4%
Propane / LP gas	10.0%

Households & families

Household type	Count	%
Married-couple family	260	44.1%
Cohabiting couple	6	1.0%
Male householder, no spouse	89	15.1%
Female householder, no spouse	234	39.7%
Households with children under 18	190	32.3%
Households with seniors (65+)	221	37.5%
Average household size	2.41

Marital status

Status	Male	Female
Never married	21.2%	32.1%
Married	56.5%	42.6%
Separated	0.0%	8.3%
Widowed	1.2%	8.5%
Divorced	21.0%	8.5%

Education

Less than 9th grade 5.5%

Some HS, no diploma 14.3%

HS graduate 27.2%

Some college, no degree 19.5%

Associate's degree 6.8%

Bachelor's degree 14.0%

Graduate / professional 12.8%

Metric	%
HS diploma or higher	80.2%
Bachelor's or higher	26.8%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	16	4.2%
Kindergarten	0	0.0%
Elementary school	182	48.0%
High school	131	34.6%
College / grad school	50	13.2%

Employment

Industry of employment

Education & healthcare 28.7%

Manufacturing 16.0%

Public administration 13.9%

Construction 10.2%

Transportation & utilities 7.4%

Professional & management 7.0%

Agriculture & mining 6.1%

Information 4.5%

Arts, food & hospitality 2.1%

Finance & real estate 2.0%

Retail trade 1.6%

Other services 0.6%

Occupation

Category	%
Management, business & arts	14.6%
Service	36.7%
Sales & office	9.0%
Natural resources & construction	17.0%
Production & transportation	22.7%

Employment type

Type	%
Private sector	60.0%
Government	35.9%
Self-employed	2.7%
Unpaid family workers	1.4%

Commute

Method	%
Drive alone	75.8%
Carpool	16.4%
Public transit	0.0%
Walk	0.0%
Work from home	7.8%
Other means	0.0%
Avg commute (minutes)	36.5

Poverty

All people 6.3%

Under 18 years 3.8%

18 and over 7.1%

Married-couple families 0.0%

Female-led households 12.0%

Income support

Source	% of households
Social Security	46.0%
Retirement income	29.2%
Supplemental Security	6.3%
Cash public assistance	2.7%
Food stamps / SNAP	25.0%

Health indicators

Condition	%
Obesity	42.1%
High blood pressure	47.2%
High cholesterol	40.0%
Diabetes	18.2%
Heart disease	9.8%
Stroke	5.4%
Asthma	10.8%
Arthritis	31.5%
Kidney disease	4.5%
Pulmonary disease	10.6%
Cancer	7.3%

Behavior / access	%
Smoking	23.3%
Binge drinking	14.0%
No physical activity	33.7%
Less than 7 hrs sleep	39.4%
Depression	21.6%
Fair or poor health	26.5%
Poor mental health	16.4%
Poor physical health	16.0%
No health insurance	28.8%
Visited doctor (checkup)	75.9%
Visited dentist	45.2%
Cholesterol screening	90.2%
Teeth loss	22.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	106	9.6%

Disability	%
Any disability	20.5%
Under 18	15.0%
18–64 years	18.4%
65 and over	29.6%

Health insurance coverage

Type	%
Private insurance	65.5%
Public insurance	50.3%
No insurance	4.3%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,406	97.7%
Spanish	13	0.9%
Other Indo-European	13	0.9%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,386	96.3%
Born in same state	1,383	96.1%
Born in different state	1,192	82.8%
Foreign born	3	0.2%
Naturalized citizen	53	3.7%
Not a US citizen	29	54.7%

Ancestry

Ancestry	Count	%
French	101	7%
Arab	55	3.8%
Italian	44	3.1%

Ancestry	Count	%
Polish	18	1.3%
German	8	0.6%
Dutch	8	0.6%

Technology access

Metric	% of households
Computer access	40.9%
Internet access	82.5%

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

Frequently asked questions about ZIP code 77837

What city is ZIP code 77837 in?

ZIP code 77837 is primarily assigned to Calvert, Texas.

What county is ZIP code 77837 in?

ZIP code 77837 falls within Robertson County, Texas.

Does ZIP code 77837 have an older population?

27% of residents in ZIP code 77837 are 65 or older, above the national average of ~17%.

Does ZIP code 77837 have a large retiree population?

46% of households in ZIP code 77837 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 77837?

The median home value in ZIP code 77837 is $111,600.

Does ZIP code 77837 have a large veteran population?

10% of civilians in ZIP code 77837 are veterans, above the national average of ~7%.

What timezone is ZIP code 77837 in?

ZIP code 77837 observes the CST timezone.