78674 ZIP Code — Weir, TX

Williamson County, Texas

ZIP code 78674 is located in Weir, Texas, within Williamson County. It covers approximately 0.36 square miles and serves a population of 233 residents. This is a standard ZIP code in the Central (CT) timezone, served by area code 512/737.

About ZIP code 78674

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Owner-occupancy sits near the national average at 68%.

Median household income is $89,500.

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

23% of residents lack health insurance, above the national average.

Notable community characteristics include Spanish spoken in 32% of households.

233

population

0.36

sq mi land

Standard

ZIP type

Central (CT)

timezone

78674 ZIP code map

Cities in ZIP code 78674

Below are the cities the US Postal Service accepts for ZIP code 78674. Using any city not on this list may result in mail delivery delays.

City	Status
Weir	Acceptable

Demographics updated 06/2026

Population
Total population	233
Population density	647 / sq mi
State FIPS	48
County FIPS	491

Geography
Land area	0.36 sq mi
Water area	0.00 sq mi
Latitude	30.6737
Longitude	-97.5845
Timezone	Central (CT)
Area code	512/737

Total population by age

Gender

Race & ethnicity

Demographics & statistics

233

Population

647

People per sq mi

35.4

Median age

$89,500

Median household income

$21,909

Per capita income

Median home value

Median monthly rent

67.9%

Home ownership

10.3%

Poverty rate

0.0%

Unemployment

Housing units

0.0%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

55–59

60–64

65–74

← Male

Female →

Age summary

Group	Count	%
Under 18	67	28.8%
18 and over	166	71.2%
65 and over	5	2.1%
Median age	35.4 years

Race & ethnicity

White 100%

Group	Count	%
White	233	100%

Household income

$10k–$15k 8.9%

$15k–$25k 10.7%

$50k–$75k 21.4%

$75k–$100k 28.6%

$100k–$150k 10.7%

$150k–$200k 19.6%

Range	% of households
$10k–$15k	8.9%
$15k–$25k	10.7%
$50k–$75k	21.4%
$75k–$100k	28.6%
$100k–$150k	10.7%
$150k–$200k	19.6%
Median income	$89,500

Housing

Home values

Under $50k 44.7%

$50k–$100k 13.2%

$100k–$150k 15.8%

$150k–$200k 26.3%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	67.9%
Renter occupied	32.1%
Vacant	5.1%
Single-family detached	5.1%
Large apartment buildings	0.0%
Mobile homes	94.9%
Median rooms	5.0
Avg household size (owned)	4.29

Year built

Era	%
2020 or later	0.0%
2010–2019	8.5%
2000–2009	18.6%
1990–1999	42.4%
1980–1989	25.4%
1970–1979	0.0%
1960–1969	0.0%
1950–1959	0.0%
1940–1949	0.0%
1939 or earlier	5.1%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	0.0%
2 bedrooms	15.3%
3 bedrooms	84.7%
4 bedrooms	0.0%
5+ bedrooms	0.0%

Vehicles per household

Vehicles	% of households
No vehicle	10.7%
1 vehicle	0.0%
2 vehicles	41.1%
3 or more	48.2%

Heating fuel

Fuel type	%
Electricity	100.0%

Households & families

Household type	Count	%
Married-couple family	33	58.9%
Cohabiting couple	0	0.0%
Male householder, no spouse	6	10.7%
Female householder, no spouse	17	30.4%
Households with children under 18	22	39.3%
Households with seniors (65+)	5	8.9%
Average household size	4.16

Marital status

Status	Male	Female
Never married	27.4%	41.3%
Married	72.6%	45.7%
Separated	0.0%	1.1%
Widowed	0.0%	6.5%
Divorced	0.0%	5.4%

Education

Less than 9th grade 19.0%

Some HS, no diploma 26.1%

HS graduate 45.1%

Some college, no degree 9.9%

Associate's degree 0.0%

Bachelor's degree 0.0%

Graduate / professional 0.0%

Metric	%
HS diploma or higher	54.9%
Bachelor's or higher	0.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	5	6.8%
Kindergarten	0	0.0%
Elementary school	24	32.9%
High school	35	47.9%
College / grad school	9	12.3%

Employment

Industry of employment

Construction 40.2%

Education & healthcare 21.2%

Professional & management 17.4%

Retail trade 10.6%

Arts, food & hospitality 10.6%

Occupation

Category	%
Management, business & arts	12.9%
Service	41.7%
Sales & office	30.3%
Natural resources & construction	9.1%
Production & transportation	6.1%

Employment type

Type	%
Private sector	72.7%
Government	15.2%
Self-employed	12.1%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	74.2%
Carpool	25.8%
Public transit	0.0%
Walk	0.0%
Work from home	0.0%
Other means	0.0%
Avg commute (minutes)	25.5

Poverty

All people 10.3%

Under 18 years 19.4%

18 and over 6.6%

Married-couple families 0.0%

Female-led households 45.5%

Income support

Source	% of households
Social Security	8.9%
Retirement income	30.4%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	0.0%
High blood pressure	0.0%
High cholesterol	0.0%
Diabetes	0.0%
Heart disease	0.0%
Stroke	0.0%
Asthma	0.0%
Arthritis	0.0%
Kidney disease	0.0%
Pulmonary disease	0.0%
Cancer	0.0%

Behavior / access	%
Smoking	0.0%
Binge drinking	0.0%
No physical activity	0.0%
Less than 7 hrs sleep	0.0%
Depression	0.0%
Fair or poor health	0.0%
Poor mental health	0.0%
Poor physical health	0.0%
No health insurance	0.0%
Visited doctor (checkup)	0.0%
Visited dentist	0.0%
Cholesterol screening	0.0%
Teeth loss	0.0%

Veterans & disability

Veterans	Count	%
Civilian veterans	11	6.6%

Disability	%
Any disability	4.7%
Under 18	0.0%
18–64 years	6.8%
65 and over	0.0%

Health insurance coverage

Type	%
Private insurance	55.8%
Public insurance	23.2%
No insurance	23.2%
Uninsured under 19	10.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	216	92.7%
Spanish	69	31.9%
Other Indo-European	69	31.9%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	143	61.4%
Born in same state	137	58.8%
Born in different state	126	54.1%
Foreign born	6	2.6%
Naturalized citizen	90	38.6%
Not a US citizen	10	11.1%

Ancestry

Ancestry	Count	%
Italian	3	1.3%

Technology access

Metric	% of households
Computer access	24.0%
Internet access	89.3%

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

Frequently asked questions about ZIP code 78674

What city is ZIP code 78674 in?

ZIP code 78674 is primarily assigned to Weir, Texas.

What county is ZIP code 78674 in?

ZIP code 78674 falls within Williamson County, Texas.

Is Spanish widely spoken in ZIP code 78674?

Approximately 32% of households in ZIP code 78674 speak Spanish as a primary language.

What is the population of ZIP code 78674?

ZIP code 78674 has an estimated population of 233 residents, with a density of 651 people per square mile.

What is the median household income in ZIP code 78674?

The median household income in ZIP code 78674 is $89,500, above the national median of ~$75,000.

What timezone is ZIP code 78674 in?

ZIP code 78674 observes the CST timezone.